前言

这是个项目是对淘宝的数据进行：数据爬取，数据分析，可视化大屏，机器学习进行销量预测。

视频：商品数据可视化大屏

技术：

数据获取：爬虫的selenium自动化技术

数据存储：MySQL数据库

后端：python的Django框架

前端：vue框架

图表：echarts

需要的工具：

后端与数据库：

  1. python，pycharm专业版
  2. MySQL，Navicat
  3. Chrome，ChromeDriver

前端：

  1. node.js
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># 镜像源：
>npm config set registry https://registry.npmmirror.com
  1. vscode

项目展示：

001

1.项目初始化

1.创建项目

001

2.安装依赖

  1. 创建一个requirements.txt文件，requirements.txt的内容是：

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    asgiref==3.7.2
    async-generator==1.10
    attrs==22.1.0
    backports.zoneinfo==0.2.1
    blinker==1.6.2
    certifi==2022.6.15
    cffi==1.15.1
    charset-normalizer==3.2.0
    click==8.1.7
    colorama==0.4.6
    cryptography==37.0.4
    cycler==0.11.0
    distlib==0.3.7
    Django==4.2.5
    django-cors-headers==4.2.0
    exceptiongroup==1.1.2
    filelock==3.12.2
    Flask==2.3.3
    Flask-Cors==4.0.0
    Flask-SQLAlchemy==3.0.5
    fonttools==4.34.4
    greenlet==2.0.2
    h11==0.13.0
    idna==3.3
    importlib-metadata==6.8.0
    itsdangerous==2.1.2
    jieba==0.42.1
    Jinja2==3.1.2
    joblib==1.3.2
    kiwisolver==1.4.4
    lxml==4.9.3
    MarkupSafe==2.1.3
    matplotlib==3.5.2
    mysqlclient==2.2.0
    numpy==1.23.1
    outcome==1.2.0
    packaging==21.3
    pandas==1.5.3
    Pillow==9.2.0
    platformdirs==3.10.0
    pycparser==2.21
    PyMySQL==1.0.2
    pyOpenSSL==22.0.0
    pyparsing==3.0.9
    PySocks==1.7.1
    python-dateutil==2.8.2
    pytz==2022.1
    requests==2.31.0
    scikit-learn==1.3.2
    scipy==1.10.1
    selenium==4.3.0
    six==1.16.0
    sniffio==1.2.0
    sortedcontainers==2.4.0
    SQLAlchemy==1.4.45
    sqlparse==0.4.2
    threadpoolctl==3.2.0
    trio==0.21.0
    trio-websocket==0.9.2
    typing_extensions==4.7.1
    tzdata==2022.1
    urllib3==1.26.11
    urllib3-secure-extra==0.1.0
    virtualenv==20.24.3
    virtualenvwrapper-win==1.2.7
    werkzeug==2.3.7
    wordcloud==1.8.2.2
    wsproto==1.1.0
    zipp==3.8.0

  2. 将requirements.txt文件复制到同名目录下：

    001

  3. 打开终端

    001

  4. 安装依赖，在终端输入

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    pip install -r ..\..\requirements.txt

  5. 查看安装的依赖

    001

3.基础配置

  1. 修改语言，时区

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    LANGUAGE_CODE = 'zh-Hans'

    TIME_ZONE = 'Asia/Shanghai'

    001

  2. 配置数据库

    • 在Navicat中创建数据库goodsData:

      001

    • 回到settings.py修改：

      001

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      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.mysql',
              'NAME': 'goodsData',
              'USER': 'root',
              'PASSWORD': 'root',
              'HOST': 'localhost',
              'POST': '3306'
          }
      }

2.爬虫

新建一个spiderMain文件夹，并且在spiderMain文件夹创建一个spider.py文件，如：
001

1.软件安装

需要下载chrome浏览器和chromedriver.exe驱动。

  1. 查看Chrome的版本号

  2. 下载ChromeDriver

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    ChromeDriver下载地址：
    版本在114及以下：http://chromedriver.storage.googleapis.com/index.html
    版本在127：https://googlechromelabs.github.io/chrome-for-testing/#stable

  3. 将chromedriver.exe放在spiderMain文件夹下

  4. 将chrome的目录添加在环境变量中

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    C:\Program Files\Google\Chrome\Application

    001

  5. chrome浏览器设置

    可以防止浏览器打开新的页面，被爬取数据的网页系统监测到

    001

  6. chrome浏览器端口设置

    用管理员身份运行cmd输入

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    chrome.exe --remote-debugging-port=9223

    注：出现报错是没有进行第4步的配置，只需要配置第4步后，重新执行第6步即可

2.爬虫编写

注意：运行代码时，一定要点开浏览器，并且是对应的端口号

*1.导入所需的依赖

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from selenium import webdriver
from pymysql import *
import pandas as pd
from sqlalchemy import create_mock_engine
import time
import re
import csv
import os
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By

*2.创建浏览器对象

目标：使用chromedriver.exe打开需要爬取数据的网页

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if __name__ == '__main__':
    service = Service('./chromedriver.exe')
    options = webdriver.ChromeOptions()
    options.add_experimental_option("debuggerAddress","localhost:9223") # 不打开新页面进行数据爬取
    brower = webdriver.Chrome(service=service, options=options) # 创建浏览器对象
    brower.execute_cdp_cmd('Page.addScriptToEvaluateOnNewDocument',{
        'source': 'Object.defineProperty(navigator,"webdriver",{get: () => undefined})'}) # 通过反爬措施：通过网站的测验,如二维码检测等

    url = "https://www.taobao.com/"
    brower.get(url)

*3.数据初始化（init）

目标：用来创建存储数据的文件，并且初始化文件的内容

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# 创建存取数据的文件data.csv
def init():
    # 删除文件后重新创建文件夹
    if os.path.exists('./data.csv'):
        os.remove('./data.csv')
    with open('./data.csv','a',encoding='utf-8',newline='') as f:
        myWrite = csv.writer(f)
        myWrite.writerow(['product_type','title','price','buy_len',
                          'img_src','name','address','isFreeDelivery','href','nameHref'])

*4.获取指定的数据类型

目标：通过key参数来传递数据，能够获取对应key值得搜索

例如：获取购物网站上衣物，食品，电器等不同类型的数据得搜索

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# 通过key参数，传递搜索的关键字
def search_product(key):
    brower.find_element(By.ID,"q").send_keys(key)  # find_element找到参数中的元素By.ID,"q"
    brower.find_element(By.XPATH,'//*[@id="J_TSearchForm"]/div[1]/button').click()
    time.sleep(5)

*5.获取对应的产品信息

目标：获取到当页的需要的数据信息，并且实现下一页的翻页

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# 获取对应的产品信息
def get_product(count):
    items = brower.find_elements(By.XPATH,'//div[@class="Content--contentInner--QVTcU0M"]/a')
    for div in items:
        try:
            count += 1
            # 类型
            product_type = key
            # 商品名
            title = div.find_element(By.XPATH, './/div[@class="Title--title--jCOPvpf "]/span').text
            # 价格
            price = div.find_element(By.XPATH,
                                     './/div[@style="margin-right: 8px;"]/span[@class="Price--priceInt--ZlsSi_M"]').text + \
                    div.find_element(By.XPATH,
                                     './/div[@style="margin-right: 8px;"]/span[@class="Price--priceFloat--h2RR0RK"]').text
            # 销量
            buy_len = div.find_element(By.XPATH,
                                       './/div[@class="Price--priceWrapper--Q0Dn7pN "]/span[@class="Price--realSales--FhTZc7U"]').text
            buy_len = re.search("\d+", buy_len).group()  # d+为匹配数字的正则表达式
            # 图片
            img_src = div.find_element(By.XPATH, './/img[@class="MainPic--mainPic--rcLNaCv"]').get_attribute("src")  # 获取属性使用get_attribute函数
            # 店铺名
            name = div.find_element(By.XPATH, './/div[@class="ShopInfo--TextAndPic--yH0AZfx"]/a').text
            # 地址
            address = div.find_element(By.XPATH, './/div[@class="Price--procity--_7Vt3mX"]/span').text
            # 包邮情况
            isFreeDelivery = '不包邮' # 默认不包邮
            try:
                isFreeDeliveryList = div.find_elements(By.XPATH,
                                                       './/div[@class="SalesPoint--subIconWrapper--s6vanNY "]/div/span')
                isFreeDeliveryList = [element.text for element in isFreeDeliveryList]  # 获取所有的文本元素
                if "包邮" in isFreeDeliveryList:
                    isFreeDelivery = "包邮"
            except:
                isFreeDelivery = "不包邮"
            # 详情页面
            href = div.get_attribute("href")  # 此时的div变量就是a标签
            # 店铺详情
            namehref = div.find_element(By.XPATH, './/a[@class="ShopInfo--shopName--rg6mGmy"]').get_attribute("href")
            # 写入数据
            save_to_csv(product_type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, namehref)

            # print(product_type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, namehref)
        except:
            count -= 1
            continue

        if count % 10 == 0:
            print("已爬取%d条数据"%count)
    else:
        # 实现翻页，获取下一页的数据
        brower.find_element(By.XPATH,'.//button[@class="next-btn next-medium next-btn-normal next-pagination-item next-next"]').click()
        print("正在翻页")
        time.sleep(10)
        get_product(count)

*6.保存数据

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# 数据保存到CSV文件夹中
def save_to_csv(product_type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, namehref):
    with open('./data.csv', 'a', encoding="UTF-8", newline='') as f:
        myWriter = csv.writer(f, dialect='excel', delimiter=',')  # dialect='excle'使它兼容excle; delimiter=','逗号分隔
        myWriter.writerow([product_type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, namehref])  # 按顺序写入,注意写入的数据类型是列表格式

7.创建数据库的表

  1. 打开命令行

    001

  2. 创建一个app,输入：

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    python manage.py startapp myApp

  3. 配置settings.py,添加：

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    'myApp'

    001

  4. 编写models.py

    001

    编写代码：

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    from django.db import models

    # Create your models here.
    from django.db import models

    # 商品表
    class Products(models.Model):
        id = models.AutoField('id',primary_key=True)
        type = models.CharField('商品类型', max_length=255,default='')
        title = models.CharField('商品名称', max_length=255, default='')
        price = models.CharField('商品价格', max_length=255, default='')
        buy_len = models.CharField('商品销量', max_length=255, default='')
        img_src = models.CharField('图片', max_length=2555, default='')
        name = models.CharField('店铺名', max_length=255, default='')
        address = models.CharField('地址', max_length=255, default='')
        isFreeDelivery = models.CharField('是否包邮', max_length=255, default='')
        href = models.CharField('详情链接', max_length=2555, default='')
        nameHref = models.CharField('店铺详情链接', max_length=2555, default='')

        class Meta:
            db_table = "products"

    # 用户表
    class User(models.Model):
        id = models.AutoField('id', primary_key=True)
        username = models.CharField('用户名', max_length=255, default='')
        password = models.CharField('密码', max_length=255, default='')
        createTime = models.DateTimeField("创建时间",auto_now_add=True)


        class Meta:
            db_table = "user"

  5. 创建数据库

    在终端输入：

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    python manage.py makemigrations

    接着输入，即可将表创建成功（可在navicat中查看）：

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    python manage.py migrate

*8.数据清洗

目标：对数据进行清洗

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# 数据清洗
def df_clean(df):
    df['address'] = df['address'].str.split('省')
    df['address'] = df['address'].str.get(0)
    df.fillna('暂无',inplace=True)
    return df

*9.数据保存到数据库

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def save_to_sql():
    products = pd.read_csv('./data.csv')
    df = pd.DataFrame(products)
    conn = create_engine('mysql+pymysql://root:root@localhost:3306/goodsdata?charset=utf8')
    df = df_clean(df)
    df.to_sql('products',con=conn,index=False,if_exists='append')
    print("导入数据库成功")

10.爬虫优化

目标：自动完成页面滚动，脱离人工

  1. 查看整个网页的高度

    001

  2. 实现浏览器滚动

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    # 爬虫的优化
    scroll_position = 0
    scroll_amount = 200 # 一次滚动的距离
    max_scroll = 7000


    # 实现浏览器滚动
    if scroll_position < max_scroll:
        scroll_script = f"window.scrollBy(0,{scroll_amount});"
        brower.execute_script(scroll_script)
        scroll_position += scroll_amount

11.爬虫完整代码

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from selenium import webdriver
from pymysql import *
import pandas as pd
from sqlalchemy import create_mock_engine, create_engine
import time
import re
import csv
import os
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By


# 创建爬虫函数
def spider_fn(key):
    # 创建存取数据的文件data.csv
    def init():
        # 删除文件后重新创建文件夹
        if os.path.exists('./data.csv'):
            os.remove('./data.csv')
        with open('./data.csv','a',encoding='utf-8',newline='') as f:
            myWrite = csv.writer(f)
            myWrite.writerow(['type','title','price','buy_len',
                              'img_src','name','address','isFreeDelivery','href','nameHref'])

    # 通过key参数，传递搜索的关键字
    def search_product(key):
        brower.find_element(By.ID,"q").send_keys(key)  # find_element找到参数中的元素By.ID,"q"
        brower.find_element(By.XPATH,'//*[@id="J_TSearchForm"]/div[1]/button').click()
        time.sleep(5)

    # 获取对应的产品信息
    def get_product(count):
        # 爬虫的优化
        scroll_position = 0
        scroll_amount = 300 # 一次滚动的距离
        max_scroll = 6900

        items = brower.find_elements(By.XPATH,'//div[@class="Content--contentInner--QVTcU0M"]/a')
        for div in items:
            try:
                count += 1
                # 类型
                type = key
                # 商品名
                title = div.find_element(By.XPATH, './/div[@class="Title--title--jCOPvpf "]/span').text
                # 价格
                price = div.find_element(By.XPATH,
                                         './/div[@style="margin-right: 8px;"]/span[@class="Price--priceInt--ZlsSi_M"]').text + \
                        div.find_element(By.XPATH,
                                         './/div[@style="margin-right: 8px;"]/span[@class="Price--priceFloat--h2RR0RK"]').text
                # 销量
                buy_len = div.find_element(By.XPATH,
                                           './/div[@class="Price--priceWrapper--Q0Dn7pN "]/span[@class="Price--realSales--FhTZc7U"]').text
                buy_len = re.search("\d+", buy_len).group()  # d+为匹配数字的正则表达式
                # 图片
                img_src = div.find_element(By.XPATH, './/img[@class="MainPic--mainPic--rcLNaCv"]').get_attribute("src")  # 获取属性使用get_attribute函数
                # 店铺名
                name = div.find_element(By.XPATH, './/div[@class="ShopInfo--TextAndPic--yH0AZfx"]/a').text
                # 地址
                address = div.find_element(By.XPATH, './/div[@class="Price--procity--_7Vt3mX"]/span').text
                # 包邮情况
                isFreeDelivery = '不包邮' # 默认不包邮
                try:
                    isFreeDeliveryList = div.find_elements(By.XPATH,
                                                           './/div[@class="SalesPoint--subIconWrapper--s6vanNY "]/div/span')
                    isFreeDeliveryList = [element.text for element in isFreeDeliveryList]  # 获取所有的文本元素
                    if "包邮" in isFreeDeliveryList:
                        isFreeDelivery = "包邮"
                except:
                    isFreeDelivery = "不包邮"
                # 详情页面
                href = div.get_attribute("href")  # 此时的div变量就是a标签
                # 店铺详情
                nameHref = div.find_element(By.XPATH, './/a[@class="ShopInfo--shopName--rg6mGmy"]').get_attribute("href")
                # 写入数据
                save_to_csv(type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, nameHref)

                # print(type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, nameHref)
            except:
                count -= 1
                continue

            # 实现浏览器滚动
            if scroll_position < max_scroll:
                scroll_script = f"window.scrollBy(0,{scroll_amount});"
                brower.execute_script(scroll_script)
                scroll_position += scroll_amount

            if count % 10 == 0:
                print("已爬取%d条数据"%count)
        else:
            # 实现翻页，获取下一页的数据
            brower.find_element(By.XPATH,'.//button[@class="next-btn next-medium next-btn-normal next-pagination-item next-next"]').click()
            print("正在翻页")
            time.sleep(10)
            get_product(count)

    # 数据保存到CSV文件夹中
    def save_to_csv(type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, nameHref):
        with open('./data.csv', 'a', encoding="UTF-8", newline='') as f:
            myWriter = csv.writer(f, dialect='excel', delimiter=',')  # dialect='excle'使它兼容excle; delimiter=','逗号分隔
            myWriter.writerow([type, title, price, buy_len, img_src, name, address, isFreeDelivery, href, nameHref])  # 按顺序写入,注意写入的数据类型是列表格式

    # 数据清洗
    def df_clean(df):
        df['address'] = df['address'].str.split('省')
        df['address'] = df['address'].str.get(0)
        df.fillna('暂无',inplace=True)
        return df

    def save_to_sql():
        products = pd.read_csv('./data.csv')
        df = pd.DataFrame(products)
        conn = create_engine('mysql+pymysql://root:root@localhost:3306/goodsdata?charset=utf8')
        df = df_clean(df)
        df.to_sql('products',con=conn,index=False,if_exists='append')
        print("导入数据库成功")



    def main():
        count = 0 # 获取爬取数据信息的条数
        init()
        search_product(key)
        get_product(count)
        # save_to_sql()
    main()


if __name__ == '__main__':
    service = Service('./chromedriver.exe')
    options = webdriver.ChromeOptions()
    options.add_experimental_option("debuggerAddress","localhost:9223") # 不打开新页面进行数据爬取
    brower = webdriver.Chrome(service=service, options=options) # 创建浏览器对象
    brower.execute_cdp_cmd('Page.addScriptToEvaluateOnNewDocument',{
        'source': 'Object.defineProperty(navigator,"webdriver",{get: () => undefined})'}) # 通过反爬措施：通过网站的测验,如二维码检测等

    url = "https://www.taobao.com/"
    brower.get(url)

    spider_fn('食品')

3.前端

为了更加注重后端的编写，所以此项目的前端使用的是模板。

vscode格式化快捷键：shift + alt + f

1.前端–初始化

  1. 模板网页链接： 轻量级后台管理系统基础模板

    001

    解压到项目文件夹下

    001

  2. 在vscode中打开解压后的文件夹

  3. 在vscode的终端中下载package.json,并且一定要删除package-lock.json文件

    001

  4. 在终端输入（若node.js安装在C盘，右键管理员身份运行vscode）：

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    npm install

  5. 启动项目

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    npm run serve

    # 若出现报错，则输入：npm run lint -- --fix

    可在浏览器输入，查看：

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    http://localhost:8080

    001

  6. eslin注释（或删除）

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    "lint": "vue-cli-service lint",

    "@vue/cli-plugin-babel": "^4.1.0",

  7. ctrl+c停止项目，然后重启项目

2.前端–大屏样式

  1. 注释app.vue中的内容（快捷键ctrl + /）

    作用：让网页能够向下滑动

    001

  2. 网页布局

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    <style scoped>
    /*设置整体*/
    .layout {
        height: 100vh;
        width: 100%;
        background: url('../assets/imgs/bg03.jpg');
    }
    .header {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .header div {
        width: 50%;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }
    .header div span {
        color: steelblue;
        font-weight: bold;
        font-size: 23px;
        padding: 10px;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: row;
    }
    .content .left {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }
    .content .left div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }
    .content .right {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }
    .content .right div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }
    .content .center {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 600px;
    }
    </style>

  3. 布局元素：DataV (jiaminghi.com)

    • 找到安装依赖

    001

    • 在vscode中新建一个终端，输入：

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      npm install @jiaminghi/data-view

      # 注：若安装失败，需要使用管理员身份运行vscode

  4. 在main.js中引入datav，输入：

    注意导入的依赖一定要在import App from ‘./App’之前

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    import { borderBox1 } from '@jiaminghi/data-view'

    Vue.use(borderBox1)

    001

  5. 样式的home.vue文件代码：

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    <template>
        <div class="layout">
            <!-- 头部 -->
            <div class="header">
                <dv-decoration-8 style="width:300px;height:50px;" />
                <div>
                    <span class="title-text">大数据可视化平台</span>
                    <dv-decoration-5 style="width:300px;height:40px;" />
                </div>
                <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
            </div>

            <!-- 内容 -->
            <div class="content">
                <div class="left">
                    <dv-border-box-13>
                        <dv-decoration-1 style="width:200px;height:10px;" />
                        <div></div>
                    </dv-border-box-13>
                    <dv-border-box-8><div></div></dv-border-box-8>
                </div>
                <div class="center">
                    <div></div>
                </div>
                <div class="right">
                    <dv-border-box-12>
                        <dv-decoration-3 style="width:250px;height:10px;" />
                        <div></div>
                    </dv-border-box-12>
                    <dv-border-box-1><div></div></dv-border-box-1>
                </div>
            </div>
        </div>
    </template>

    <script>
    // 注释
    /*
    注释
    */
    export default {

    }
    </script>

    <style scoped>
    /*设置整体*/
    .layout {
        height: 100vh;
        width: 100%;
        background: url('../assets/imgs/bg03.jpg');
    }
    .header {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .header div {
        width: 50%;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }
    .header div span {
        color: steelblue;
        font-weight: bold;
        font-size: 23px;
        padding: 10px;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: row;
    }
    .content .left {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }
    .content .left div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }
    .content .right {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }
    .content .right div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }
    .content .center {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 600px;
    }
    </style>

4.图形绘制（前端 + 后端接口）

1.柱状图

1.柱状图前端

  1. script基础配置(一定要有注释和空格)

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    <script>
    // 注释
    export default {
        data() {
            // 函数体
        },
        methods: {
            // 方法
        },
        async mounted() {
            // 生命周期钩子
        },
    }
    </script>

  2. 柱状图：使用echarts图表

    • 在终端输入安装echarts：

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      npm install --save echarts

    • 在main.js中引入echarts

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      import * as echarts from 'echarts'

      Vue.prototype.$echarts = echarts

      001

    • 柱状图

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      <script>
      // 注释
      export default {
          data() {
              // 函数体
          },
          methods: {
              // 方法
              drawLeftTop() {
                  let myChart = this.$echarts.init(this.$refs.firstMain)
                  let option = {
                      xAxis: {
                          type: 'category',
                          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
                      },
                      yAxis: {
                          type: 'value',
                      },
                      series: [
                          {
                              data: [120, 200, 150, 80, 70, 110, 130],
                              type: 'bar',
                          },
                      ],
                  }
                  if (option) {
                      myChart.setOption(option)
                  }
              },
          },
          async mounted() {
              // 生命周期
              this.drawLeftTop()
          },
      }
      </script>

      如果报错，在终端输入：

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      npm install -g eslint

      npx eslint --fix src/views/Home.vue

  3. 最终的Home.vue的代码

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    <template>
        <div class="layout">
            <!-- 头部 -->
            <div class="header">
                <dv-decoration-8 style="width:300px;height:50px;" />
                <div>
                    <span class="title-text">大数据可视化平台</span>
                    <dv-decoration-5 style="width:300px;height:40px;" />
                </div>
                <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
            </div>

            <!-- 内容 -->
            <div class="content">
                <div class="left">
                    <dv-border-box-13>
                        <dv-decoration-1 style="width:200px;height:10px;" />
                        <div ref="firstMain" style="width:300px;height:270px;"></div>
                    </dv-border-box-13>
                    <dv-border-box-8>
                        <div></div>
                    </dv-border-box-8>
                </div>
                <div class="center">
                    <div></div>
                </div>
                <div class="right">
                    <dv-border-box-12>
                        <dv-decoration-3 style="width:250px;height:10px;" />
                        <div></div>
                    </dv-border-box-12>
                    <dv-border-box-1>
                        <div></div>
                    </dv-border-box-1>
                </div>
            </div>
        </div>
    </template>

    <script>
    // 注释
    export default {
        data() {
            // 函数体
        },
        methods: {
            // 方法
            drawLeftTop() {
                let myChart = this.$echarts.init(this.$refs.firstMain)
                let option = {
                    xAxis: {
                        type: 'category',
                        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
                    },
                    yAxis: {
                        type: 'value',
                    },
                    series: [
                        {
                            data: [120, 200, 150, 80, 70, 110, 130],
                            type: 'bar',
                        },
                    ],
                }
                if (option) {
                    myChart.setOption(option)
                }
            },
        },
        async mounted() {
            // 生命周期
            this.drawLeftTop()
        },
    }
    </script>

    <style scoped>
    /*设置整体*/
    .layout {
        height: 100vh;
        width: 100%;
        background: url('../assets/imgs/bg03.jpg');
    }

    .header {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .header div {
        width: 50%;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }

    .header div span {
        color: steelblue;
        font-weight: bold;
        font-size: 23px;
        padding: 10px;
    }

    .content {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: row;
    }

    .content .left {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
        margin-left: 30px;
    }

    .content .left div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }

    .content .right {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }

    .content .right div {
        flex-grow: 1;
        height: 300px;
        width: 300px;
        padding: 5px;
    }

    .content .center {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 600px;
    }
    </style>

2.柱状图后端接口

1.流程

创建好下图的几个文件

001

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1.商品/urls.py：配置路由
2.myApp/urls.py
3.myApp/views.py：接受请求，返回数据
4.myApp/utils/getScreenData.py：实现获取数据的的方法
5.myApp/utils/getBaseData.py：引入数据库的数据

2.实现

  1. 商品/urls.py

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    from django.contrib import admin
    from django.urls import path,include

    urlpatterns = [
        path('admin/', admin.site.urls),
        path('myApp/',include('myApp.urls'))
    ]

  2. myApp/urls.py

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    from django.urls import path
    from myApp import views

    urlpatterns = [
        path("screenData/", views.screenData,name="screenData"),
    ]

  3. myApp/views.py

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    from django.shortcuts import render
    from django.http import JsonResponse
    from .utils import getScreenData

    # Create your views here.

    def screenData(request):
        if request.method == "GET":
            cityList,volumnList = getScreenData.getSquareData()
            return JsonResponse({
                'cityList' : cityList,
                'volumnList' : volumnList
            })

  4. myApp/utils/getScreenData.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

  5. myApp/utils/getBaseData.py

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    from myApp.models import *

    def getAllGoods():
        # 引入Products表中的所有数据
        return Products.objects.all()

3.实现前后端关联

1.跨域的实现

为了防止前后端的端口号不同，出现跨域问题。需在pycharm项目的settings.py中设置：

001

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'corsheaders',


'corsheaders.middleware.CorsMiddleware',


CORS_ALLOW_CREDENTIALS = True
CORS_ALLOW_ORIGINS = 'http://localhost:8080'
CORS_ALLOW_HEADERS = ('*')
CORS_ORIGIN_ALLOW_ALL = True

2.前端发送请求与接受数据

  1. 流程：

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    前端 -(发送请求)-> 后端 -(数据接收)-> 前端

  2. 前端编写流程

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    1.src/api/index.js：封装HTTP请求
    2.src/main.js：全局注册HTTP客户端
    3.src/views/Home.vue：发送HTTP请求

3.前端编写

  1. src/api/index.js

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    import axios from 'axios'

    const service = axios.create({
        baseURL: 'http://127.0.0.1:8000/',
        timeout: 40000,
    })

    export default service

  2. src/main.js

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    import $http from '@/api/index.js'

    Vue.prototype.$http = $http

  3. src/views/Home.vue

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    // 发送请求
    <script>
    // 注释
    export default {
        data() {
            // 函数体
            return {
                realData: {
                    cityList: [1],
                    volumnList: [1],
                },
            }
        },
        methods: {
            // 方法
            drawLeftTop() {
                let myChart = this.$echarts.init(this.$refs.firstMain)
                let option = {
                    xAxis: {
                        type: 'category',
                        data: this.realData.cityList,
                    },
                    yAxis: {
                        type: 'value',
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                            type: 'bar',
                        },
                    ],
                }
                if (option) {
                    myChart.setOption(option)
                }
            },
        },
        async mounted() {
            // 生命周期
            // 异步请求，使用await
            const res = await this.$http.get('myApp/screenData/')
            // 接收数据
            this.$set(this.realData, 'cityList', res.data.cityList)
            this.$set(this.realData, 'volumnList', res.data.volumnList)
            this.drawLeftTop()
        },
    }
    </script>

    以及修改表的x,y轴的数据

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    let option = {
        xAxis: {
            type: 'category',
            data: this.realData.cityList,
        },
        yAxis: {
            type: 'value',
        },
        series: [
            {
                data: this.realData.volumnList,
                type: 'bar',
            },
        ],
    }

  4. 美化图形

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    <script>
    import { color } from 'echarts'
    import * as echarts from 'echarts'
    import { readonly } from 'vue'

    // 注释
    export default {
        data() {
            // 函数体
            return {
                isHovered: true,
                realData: {
                    cityList: [1],
                    volumnList: [1],
                },
            }
        },
        methods: {
            // 方法
            drawLeftTop() {
                let myChart = this.$echarts.init(this.$refs.firstMain)
                let option = {
                    xAxis: {
                        type: 'category',
                        data: this.realData.cityList,
                        axisLabel: {
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                    dataZoom: [
                        {
                            type: 'slider',
                            start: 0,
                            end: 85,
                            show: false,
                        },
                    ],
                    title: {
                        text: '各地区销售数据',
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                    toolbox: {
                        show: true,
                        feature: {
                            // dataView: { show: true, realData: true },
                            magicType: { show: true, type: ['line', 'bar'] },
                            restore: { show: true },
                            SaveAsImage: { show: true },
                        },
                    },
                    legend: {
                        orient: 'vertical',
                        right: 'right',
                        data: ['销售数据'],
                        textStyle: {
                            color: 'grey',
                        },
                        top: '8%',
                        left: '70%',
                    },
                    tooltip: {
                        trigger: 'item',
                        formatter: '',
                    },
                    yAxis: {
                        type: 'value',
                        axisLabel: {
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                    series: [
                        {
                            name: '销售数据',
                            data: this.realData.volumnList,
                            type: 'bar',
                            label: {
                                show: true,
                                position: 'top',
                                textStyle: {
                                    color: '#C0C0C0',
                                },
                            },
                        },
                    ],
                }
                if (option) {
                    myChart.setOption(option)
                }
            },
            changeData(x) {
                let st = x[0]
                for (let i = 0; i < x.length - 1; i++) {
                    x[i] = x[i + 1]
                }
                x[x.length - 1] = st
            },
            updataBarChart() {
                if (this.isHovered == true) {
                    this.changeData(this.realData.cityList)
                    this.changeData(this.realData.volumnList)
                    let myChart = this.$echarts.init(this.$refs.firstMain)
                    myChart.setOption({
                        xAxis: {
                            data: this.realData.cityList,
                        },
                        series: [
                            {
                                data: this.realData.volumnList,
                            },
                        ],
                    })
                } else {
                    clearInterval(this.timer)
                }
            },
            startDataupdataInterval() {
                const interval = 2000
                clearInterval(this.timer)
                setInterval(this.updataBarChart, interval)
            },
            startAction() {
                this.isHovered = false
            },
            cancelAction() {
                this.isHovered = true
            },
        },
        async mounted() {
            // 生命周期
            // 异步请求，使用await
            const res = await this.$http.get('myApp/screenData/')
            // 接收数据
            this.$set(this.realData, 'cityList', res.data.cityList)
            this.$set(this.realData, 'volumnList', res.data.volumnList)
        },
        async updated() {
            this.drawLeftTop()
            this.startDataupdataInterval()
        },
    }
    </script>

4.Home.vue的完整代码

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<template>
    <div class="layout">
        <!-- 头部 -->
        <div class="header">
            <dv-decoration-8 style="width:300px;height:50px;" />
            <div>
                <span class="title-text">大数据可视化平台</span>
                <dv-decoration-5 style="width:300px;height:40px;" />
            </div>
            <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
        </div>

        <!-- 内容 -->
        <div class="content">
            <div class="left">
                <dv-border-box-13>
                    <dv-decoration-1 style="width:200px;height:10px;" />
                    <div
                     ref="firstMain"
                     style="width:350px;height:270px;"
                     v-bind:key="realData.volumnList[0]"
                     @mouseenter="startAction"
                     @mouseleave="cancelAction"
                     ></div>
                </dv-border-box-13>
                <dv-border-box-8>
                    <div></div>
                </dv-border-box-8>
            </div>
            <div class="center">
                <div></div>
            </div>
            <div class="right">
                <dv-border-box-12>
                    <dv-decoration-3 style="width:250px;height:10px;" />
                    <div></div>
                </dv-border-box-12>
                <dv-border-box-1>
                    <div></div>
                </dv-border-box-1>
            </div>
        </div>
    </div>
</template>

<script>
import { color } from 'echarts'
import * as echarts from 'echarts'
import { readonly } from 'vue'

// 注释
export default {
    data() {
        // 函数体
        return {
            isHovered: true,
            realData: {
                cityList: [1],
                volumnList: [1],
            },
        }
    },
    methods: {
        // 方法
        drawLeftTop() {
            let myChart = this.$echarts.init(this.$refs.firstMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.cityList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                dataZoom: [
                    {
                        type: 'slider',
                        start: 0,
                        end: 85,
                        show: false,
                    },
                ],
                title: {
                    text: '各地区销售数据',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                toolbox: {
                    show: true,
                    feature: {
                        // dataView: { show: true, realData: true },
                        magicType: { show: true, type: ['line', 'bar'] },
                        restore: { show: true },
                        SaveAsImage: { show: true },
                    },
                },
                legend: {
                    orient: 'vertical',
                    right: 'right',
                    data: ['销售数据'],
                    textStyle: {
                        color: 'grey',
                    },
                    top: '8%',
                    left: '70%',
                },
                tooltip: {
                    trigger: 'item',
                    formatter: '',
                },
                yAxis: {
                    type: 'value',
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                series: [
                    {
                        name: '销售数据',
                        data: this.realData.volumnList,
                        type: 'bar',
                        label: {
                            show: true,
                            position: 'top',
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        changeData(x) {
            let st = x[0]
            for (let i = 0; i < x.length - 1; i++) {
                x[i] = x[i + 1]
            }
            x[x.length - 1] = st
        },
        updataBarChart() {
            if (this.isHovered == true) {
                this.changeData(this.realData.cityList)
                this.changeData(this.realData.volumnList)
                let myChart = this.$echarts.init(this.$refs.firstMain)
                myChart.setOption({
                    xAxis: {
                        data: this.realData.cityList,
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                        },
                    ],
                })
            } else {
                clearInterval(this.timer)
            }
        },
        startDataupdataInterval() {
            const interval = 2000
            clearInterval(this.timer)
            setInterval(this.updataBarChart, interval)
        },
        startAction() {
            this.isHovered = false
        },
        cancelAction() {
            this.isHovered = true
        },
    },
    async mounted() {
        // 生命周期
        // 异步请求，使用await
        const res = await this.$http.get('myApp/screenData/')
        // 接收数据
        this.$set(this.realData, 'cityList', res.data.cityList)
        this.$set(this.realData, 'volumnList', res.data.volumnList)
    },
    async updated() {
        this.drawLeftTop()
        this.startDataupdataInterval()
    },
}
</script>

<style scoped>
/*设置整体*/
.layout {
    height: 100vh;
    width: 100%;
    background: url('../assets/imgs/bg03.jpg');
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header div {
    width: 50%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.header div span {
    color: steelblue;
    font-weight: bold;
    font-size: 23px;
    padding: 10px;
}

.content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.content .left {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
    margin-left: 30px;
}

.content .left div {
    flex-grow: 1;
    height: 300px;
    width: 380px;
    padding: 5px;
}

.content .right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
}

.content .right div {
    flex-grow: 1;
    height: 300px;
    width: 350px;
    padding: 5px;
}

.content .center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 600px;
}
</style>

2.饼状图

1.饼状图前端

  1. 饼状图：使用echarts图表

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    drawLeftBottom() {
        let myChart = this.$echarts.init(this.$refs.secondMain)
        let option = {
            title: {
                text: 'Referer of a Website',
                subtext: 'Fake Data',
                left: 'center',
            },
            tooltip: {
                trigger: 'item',
            },
            legend: {
                orient: 'vertical',
                left: 'left',
            },
            series: [
                {
                    name: 'Access From',
                    type: 'pie',
                    radius: '50%',
                    data: [
                        { value: 1048, name: 'Search Engine' },
                        { value: 735, name: 'Direct' },
                        { value: 580, name: 'Email' },
                        { value: 484, name: 'Union Ads' },
                        { value: 300, name: 'Video Ads' },
                    ],
                    emphasis: {
                        itemStyle: {
                            shadowBlur: 10,
                            shadowOffsetX: 0,
                            shadowColor: 'rgba(0, 0, 0, 0.5)',
                        },
                    },
                },
            ],
        }
        if (option) {
            myChart.setOption(option)
        }
    },

  2. 最终的Home.vue的代码

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    <template>
        <div class="layout">
            <!-- 头部 -->
            <div class="header">
                <dv-decoration-8 style="width:300px;height:50px;" />
                <div>
                    <span class="title-text">大数据可视化平台</span>
                    <dv-decoration-5 style="width:300px;height:40px;" />
                </div>
                <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
            </div>

            <!-- 内容 -->
            <div class="content">
                <div class="left">
                    <dv-border-box-13>
                        <dv-decoration-1 style="width:200px;height:10px;" />
                        <div ref="firstMain" style="width:350px;height:270px;" v-bind:key="realData.volumnList[0]"
                            @mouseenter="startAction" @mouseleave="cancelAction"></div>
                    </dv-border-box-13>
                    <dv-border-box-8>
                        <div ref="secondMain" style="width:350px;height:270px;"></div>
                    </dv-border-box-8>
                </div>
                <div class="center">
                    <div></div>
                </div>
                <div class="right">
                    <dv-border-box-12>
                        <dv-decoration-3 style="width:250px;height:10px;" />
                        <div></div>
                    </dv-border-box-12>
                    <dv-border-box-1>
                        <div></div>
                    </dv-border-box-1>
                </div>
            </div>
        </div>
    </template>

    <script>
    import { color } from 'echarts'
    import * as echarts from 'echarts'
    import { readonly } from 'vue'

    // 注释
    export default {
        data() {
            // 函数体
            return {
                isHovered: true,
                realData: {
                    cityList: [1],
                    volumnList: [1],
                },
            }
        },
        methods: {
            // 方法
            drawLeftTop() {
                let myChart = this.$echarts.init(this.$refs.firstMain)
                let option = {
                    xAxis: {
                        type: 'category',
                        data: this.realData.cityList,
                        axisLabel: {
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                    dataZoom: [
                        {
                            type: 'slider',
                            start: 0,
                            end: 85,
                            show: false,
                        },
                    ],
                    title: {
                        text: '各地区销售数据',
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                    toolbox: {
                        show: true,
                        feature: {
                            // dataView: { show: true, realData: true },
                            magicType: { show: true, type: ['line', 'bar'] },
                            restore: { show: true },
                            SaveAsImage: { show: true },
                        },
                    },
                    legend: {
                        orient: 'vertical',
                        right: 'right',
                        data: ['销售数据'],
                        textStyle: {
                            color: 'grey',
                        },
                        top: '8%',
                        left: '70%',
                    },
                    tooltip: {
                        trigger: 'item',
                        formatter: '',
                    },
                    yAxis: {
                        type: 'value',
                        data: this.realData.volumnList,
                        axisLabel: {
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                    series: [
                        {
                            name: '销售数据',
                            data: this.realData.volumnList,
                            type: 'bar',
                            label: {
                                show: true,
                                position: 'top',
                                textStyle: {
                                    color: '#C0C0C0',
                                },
                            },
                        },
                    ],
                }
                if (option) {
                    myChart.setOption(option)
                }
            },
            drawLeftBottom() {
                let myChart = this.$echarts.init(this.$refs.secondMain)
                let option = {
                    title: {
                        text: 'Referer of a Website',
                        subtext: 'Fake Data',
                        left: 'center',
                    },
                    tooltip: {
                        trigger: 'item',
                    },
                    legend: {
                        orient: 'vertical',
                        left: 'left',
                    },
                    series: [
                        {
                            name: 'Access From',
                            type: 'pie',
                            radius: '50%',
                            data: [
                                { value: 1048, name: 'Search Engine' },
                                { value: 735, name: 'Direct' },
                                { value: 580, name: 'Email' },
                                { value: 484, name: 'Union Ads' },
                                { value: 300, name: 'Video Ads' },
                            ],
                            emphasis: {
                                itemStyle: {
                                    shadowBlur: 10,
                                    shadowOffsetX: 0,
                                    shadowColor: 'rgba(0, 0, 0, 0.5)',
                                },
                            },
                        },
                    ],
                }
                if (option) {
                    myChart.setOption(option)
                }
            },
            changeData(x) {
                let st = x[0]
                for (let i = 0; i < x.length - 1; i++) {
                    x[i] = x[i + 1]
                }
                x[x.length - 1] = st
            },
            updataBarChart() {
                if (this.isHovered == true) {
                    this.changeData(this.realData.cityList)
                    this.changeData(this.realData.volumnList)
                    let myChart = this.$echarts.init(this.$refs.firstMain)
                    myChart.setOption({
                        xAxis: {
                            data: this.realData.cityList,
                        },
                        series: [
                            {
                                data: this.realData.volumnList,
                            },
                        ],
                    })
                } else {
                    clearInterval(this.timer)
                }
            },
            startDataupdataInterval() {
                const interval = 2000
                clearInterval(this.timer)
                setInterval(this.updataBarChart, interval)
            },
            startAction() {
                this.isHovered = false
            },
            cancelAction() {
                this.isHovered = true
            },
        },
        async mounted() {
            // 生命周期
            // 异步请求，使用await
            const res = await this.$http.get('myApp/screenData/')
            // 接收数据
            this.$set(this.realData, 'cityList', res.data.cityList)
            this.$set(this.realData, 'volumnList', res.data.volumnList)
            this.drawLeftBottom()
        },
        async updated() {
            this.drawLeftTop()
            this.startDataupdataInterval()
        },
    }
    </script>

    <style scoped>
    /*设置整体*/
    .layout {
        height: 100vh;
        width: 100%;
        background: url('../assets/imgs/bg03.jpg');
    }

    .header {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .header div {
        width: 50%;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }

    .header div span {
        color: steelblue;
        font-weight: bold;
        font-size: 23px;
        padding: 10px;
    }

    .content {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: row;
    }

    .content .left {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
        margin-left: 30px;
    }

    .content .left div {
        flex-grow: 1;
        height: 300px;
        width: 380px;
        padding: 5px;
    }

    .content .right {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 350px;
    }

    .content .right div {
        flex-grow: 1;
        height: 300px;
        width: 350px;
        padding: 5px;
    }

    .content .center {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 80%;
        width: 600px;
    }
    </style>

2.饼状图后端

  1. myApp/utils/getScreenData.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

    def getPieData():
        goods = list(getAllGoods())
        goodsNumber = {}
        for i in goods:
            if goodsNumber.get(i.type,-1) == -1:
                goodsNumber[i.type] = 1
            else:
                goodsNumber[i.type] += 1
        pieList = []
        for k,v in goodsNumber.items():
            pieList.append({
                'name': k,
                'value': v
            })
        return pieList

  2. myApp/views.py

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    from django.shortcuts import render
    from django.http import JsonResponse
    from .utils import getScreenData

    # Create your views here.

    def screenData(request):
        if request.method == "GET":
            cityList,volumnList = getScreenData.getSquareData()
            pieList = getScreenData.getPieData()
            return JsonResponse({
                'cityList' : cityList,
                'volumnList' : volumnList,
                'pieList' : pieList
            })

3.前后端关联

Home.vue的全部代码：

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<template>
    <div class="layout">
        <!-- 头部 -->
        <div class="header">
            <dv-decoration-8 style="width:300px;height:50px;" />
            <div>
                <span class="title-text">大数据可视化平台</span>
                <dv-decoration-5 style="width:300px;height:40px;" />
            </div>
            <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
        </div>

        <!-- 内容 -->
        <div class="content">
            <div class="left">
                <dv-border-box-13>
                    <dv-decoration-1 style="width:200px;height:10px;" />
                    <div ref="firstMain" style="width:350px;height:270px;" v-bind:key="realData.volumnList[0]"
                        @mouseenter="startAction" @mouseleave="cancelAction"></div>
                </dv-border-box-13>
                <dv-border-box-8>
                    <div ref="secondMain" style="width:350px;height:270px;" v-bind:key="realData.pieList[0][1]"></div>
                </dv-border-box-8>
            </div>
            <div class="center">
                <div></div>
            </div>
            <div class="right">
                <dv-border-box-12>
                    <dv-decoration-3 style="width:250px;height:10px;" />
                    <div></div>
                </dv-border-box-12>
                <dv-border-box-1>
                    <div></div>
                </dv-border-box-1>
            </div>
        </div>
    </div>
</template>

<script>
import { color } from 'echarts'
import * as echarts from 'echarts'
import { readonly } from 'vue'

// 注释
export default {
    data() {
        // 函数体
        return {
            isHovered: true,
            realData: {
                cityList: [1],
                volumnList: [1],
                pieList: [{ name: 'data1', value: 10 }],
            },
        }
    },
    methods: {
        // 方法
        drawLeftTop() {
            let myChart = this.$echarts.init(this.$refs.firstMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.cityList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                dataZoom: [
                    {
                        type: 'slider',
                        start: 0,
                        end: 85,
                        show: false,
                    },
                ],
                title: {
                    text: '各地区销售数据',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                toolbox: {
                    show: true,
                    feature: {
                        // dataView: { show: true, realData: true },
                        magicType: { show: true, type: ['line', 'bar'] },
                        restore: { show: true },
                        SaveAsImage: { show: true },
                    },
                },
                legend: {
                    orient: 'vertical',
                    right: 'right',
                    data: ['销售数据'],
                    textStyle: {
                        color: 'grey',
                    },
                    top: '8%',
                    left: '70%',
                },
                tooltip: {
                    trigger: 'item',
                    formatter: '',
                },
                yAxis: {
                    type: 'value',
                    data: this.realData.volumnList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                series: [
                    {
                        name: '销售数据',
                        data: this.realData.volumnList,
                        type: 'bar',
                        label: {
                            show: true,
                            position: 'top',
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawLeftBottom() {
            let myChart = this.$echarts.init(this.$refs.secondMain)
            let option = {
                title: {
                    text: '各类型产品占比',
                    subtext: '',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    orient: 'vertical',
                    left: 'left',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                series: [
                    {
                        name: '数量',
                        type: 'pie',
                        radius: '50%',
                        data: this.realData.pieList,
                        emphasis: {
                            itemStyle: {
                                shadowBlur: 10,
                                shadowOffsetX: 0,
                                shadowColor: 'rgba(0, 0, 0, 0.5)',
                            },
                        },
                    },
                ],
                label: {
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        changeData(x) {
            let st = x[0]
            for (let i = 0; i < x.length - 1; i++) {
                x[i] = x[i + 1]
            }
            x[x.length - 1] = st
        },
        updataBarChart() {
            if (this.isHovered == true) {
                this.changeData(this.realData.cityList)
                this.changeData(this.realData.volumnList)
                let myChart = this.$echarts.init(this.$refs.firstMain)
                myChart.setOption({
                    xAxis: {
                        data: this.realData.cityList,
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                        },
                    ],
                })
            } else {
                clearInterval(this.timer)
            }
        },
        startDataupdataInterval() {
            const interval = 2000
            clearInterval(this.timer)
            setInterval(this.updataBarChart, interval)
        },
        startAction() {
            this.isHovered = false
        },
        cancelAction() {
            this.isHovered = true
        },
    },
    async mounted() {
        // 生命周期
        // 异步请求，使用await
        const res = await this.$http.get('myApp/screenData/')
        // 接收数据
        this.$set(this.realData, 'cityList', res.data.cityList)
        this.$set(this.realData, 'volumnList', res.data.volumnList)
        this.$set(this.realData, 'pieList', res.data.pieList)
        this.drawLeftBottom()
        console.log(this.realData.pieList)
    },
    async updated() {
        this.drawLeftTop()
        this.startDataupdataInterval()
    },
}
</script>

<style scoped>
/*设置整体*/
.layout {
    height: 100vh;
    width: 100%;
    background: url('../assets/imgs/bg03.jpg');
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header div {
    width: 50%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.header div span {
    color: steelblue;
    font-weight: bold;
    font-size: 23px;
    padding: 10px;
}

.content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.content .left {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
    margin-left: 30px;
}

.content .left div {
    flex-grow: 1;
    height: 300px;
    width: 380px;
    padding: 5px;
}

.content .right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
}

.content .right div {
    flex-grow: 1;
    height: 300px;
    width: 350px;
    padding: 5px;
}

.content .center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 600px;
}
</style>

3.地图的配置

1.地图api配置

  1. src/api下创建一个getMap.js文件

    001

  2. 设置api，输入：

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    import axios from 'axios'

    export default axios.get('https://geo.datav.aliyun.com/areas_v3/bound/100000_full.json')

2.地图后端

  1. myApp/utils/getScreenData.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

    def getPieData():
        goods = list(getAllGoods())
        goodsNumber = {}
        for i in goods:
            if goodsNumber.get(i.type,-1) == -1:
                goodsNumber[i.type] = 1
            else:
                goodsNumber[i.type] += 1
        pieList = []
        for k,v in goodsNumber.items():
            pieList.append({
                'name': k,
                'value': v
            })
        return pieList

    def getMapData():
        goods = list(getAllGoods())
        cityVolume = {}
        for i in goods:
            if cityVolume.get(i.address,-1) == -1:
                cityVolume[i.address] = 1
            else:
                cityVolume[i.address] += 1
        mapData = []
        for k,v in cityVolume.items():
            mapData.append({
                'name': k,
                'value': v
            })
        return mapData

  2. myApp/views.py

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    from django.shortcuts import render
    from django.http import JsonResponse
    from .utils import getScreenData

    # Create your views here.

    def screenData(request):
        if request.method == "GET":
            cityList,volumnList = getScreenData.getSquareData()
            pieList = getScreenData.getPieData()
            mapData = getScreenData.getMapData()
            return JsonResponse({
                'cityList': cityList,
                'volumnList': volumnList,
                'pieList': pieList,
                'mapData': mapData
            })

3.前后端关联

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<template>
    <div class="layout">
        <!-- 头部 -->
        <div class="header">
            <dv-decoration-8 style="width:300px;height:50px;" />
            <div>
                <span class="title-text">大数据可视化平台</span>
                <dv-decoration-5 style="width:300px;height:40px;" />
            </div>
            <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
        </div>

        <!-- 内容 -->
        <div class="content">
            <div class="left">
                <dv-border-box-13>
                    <dv-decoration-1 style="width:200px;height:10px;" />
                    <div ref="firstMain" style="width:350px;height:270px;" v-bind:key="realData.volumnList[0]"
                        @mouseenter="startAction" @mouseleave="cancelAction"></div>
                </dv-border-box-13>
                <dv-border-box-8>
                    <div ref="secondMain" style="width:350px;height:270px;" v-bind:key="realData.pieList[0][1]"></div>
                </dv-border-box-8>
            </div>
            <div class="center">
                <div ref="thirdMain" style="width: 450px;height: 450px;"></div>
            </div>
            <div class="right">
                <dv-border-box-12>
                    <dv-decoration-3 style="width:250px;height:10px;" />
                    <div></div>
                </dv-border-box-12>
                <dv-border-box-1>
                    <div></div>
                </dv-border-box-1>
            </div>
        </div>
    </div>
</template>

<script>
import getMap from '@/api/getMap.js'
// import { color } from 'echarts'
// import { scale } from 'echarts/types/src/scale/helper.js'
// 注释
export default {
    data() {
        // 函数体
        return {
            isHovered: true,
            realData: {
                cityList: [1],
                volumnList: [1],
                pieList: [{ name: 'data1', value: 10 }],
                mapData: [{ name: 'data2', value: 10 }],
            },
        }
    },
    methods: {
        // 方法
        drawLeftTop() {
            let myChart = this.$echarts.init(this.$refs.firstMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.cityList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                dataZoom: [
                    {
                        type: 'slider',
                        start: 0,
                        end: 85,
                        show: false,
                    },
                ],
                title: {
                    text: '各地区销售数据',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                toolbox: {
                    show: true,
                    feature: {
                        // dataView: { show: true, realData: true },
                        magicType: { show: true, type: ['line', 'bar'] },
                        restore: { show: true },
                        SaveAsImage: { show: true },
                    },
                },
                legend: {
                    orient: 'vertical',
                    right: 'right',
                    data: ['销售数据'],
                    textStyle: {
                        color: 'grey',
                    },
                    top: '8%',
                    left: '70%',
                },
                tooltip: {
                    trigger: 'item',
                    formatter: '',
                },
                yAxis: {
                    type: 'value',
                    data: this.realData.volumnList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                series: [
                    {
                        name: '销售数据',
                        data: this.realData.volumnList,
                        type: 'bar',
                        label: {
                            show: true,
                            position: 'top',
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawLeftBottom() {
            let myChart = this.$echarts.init(this.$refs.secondMain)
            let option = {
                title: {
                    text: '各类型产品占比',
                    subtext: '',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    orient: 'vertical',
                    left: 'left',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                series: [
                    {
                        name: '数量',
                        type: 'pie',
                        radius: '50%',
                        data: this.realData.pieList,
                        emphasis: {
                            itemStyle: {
                                shadowBlur: 10,
                                shadowOffsetX: 0,
                                shadowColor: 'rgba(0, 0, 0, 0.5)',
                            },
                        },
                    },
                ],
                label: {
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        async drawCenterMap() {
            let myChart = this.$echarts.init(this.$refs.thirdMain)
            const res = await getMap
            this.$echarts.registerMap('china', res.data)
            let data = this.realData.mapData
            let geoCoordMap = {
                海门: [121.15, 31.89],
                鄂尔多斯: [109.781327, 39.608266],
                招远: [120.38, 37.35],
                舟山: [122.207216, 29.985295],
                齐齐哈尔: [123.97, 47.33],
                盐城: [120.13, 33.38],
                赤峰: [118.87, 42.28],
                青岛: [120.33, 36.07],
                乳山: [121.52, 36.89],
                金昌: [102.188043, 38.520089],
                泉州: [118.58, 24.93],
                莱西: [120.53, 36.86],
                日照: [119.46, 35.42],
                胶南: [119.97, 35.88],
                南通: [121.05, 32.08],
                拉萨: [91.11, 29.97],
                云浮: [112.02, 22.93],
                梅州: [116.1, 24.55],
                文登: [122.05, 37.2],
                上海: [121.48, 31.22],
                攀枝花: [101.718637, 26.582347],
                威海: [122.1, 37.5],
                承德: [117.93, 40.97],
                厦门: [118.1, 24.46],
                汕尾: [115.375279, 22.786211],
                潮州: [116.63, 23.68],
                丹东: [124.37, 40.13],
                太仓: [121.1, 31.45],
                曲靖: [103.79, 25.51],
                烟台: [121.39, 37.52],
                福州: [119.3, 26.08],
                瓦房店: [121.979603, 39.627114],
                即墨: [120.45, 36.38],
                抚顺: [123.97, 41.97],
                玉溪: [102.52, 24.35],
                张家口: [114.87, 40.82],
                阳泉: [113.57, 37.85],
                莱州: [119.942327, 37.177017],
                湖州: [120.1, 30.86],
                汕头: [116.69, 23.39],
                昆山: [120.95, 31.39],
                宁波: [121.56, 29.86],
                湛江: [110.359377, 21.270708],
                揭阳: [116.35, 23.55],
                荣成: [122.41, 37.16],
                连云港: [119.16, 34.59],
                葫芦岛: [120.836932, 40.711052],
                常熟: [120.74, 31.64],
                东莞: [113.75, 23.04],
                河源: [114.68, 23.73],
                淮安: [119.15, 33.5],
                泰州: [119.9, 32.49],
                南宁: [108.33, 22.84],
                营口: [122.18, 40.65],
                惠州: [114.4, 23.09],
                江阴: [120.26, 31.91],
                蓬莱: [120.75, 37.8],
                韶关: [113.62, 24.84],
                嘉峪关: [98.289152, 39.77313],
                广州: [113.23, 23.16],
                延安: [109.47, 36.6],
                太原: [112.53, 37.87],
                清远: [113.01, 23.7],
                中山: [113.38, 22.52],
                昆明: [102.73, 25.04],
                寿光: [118.73, 36.86],
                盘锦: [122.070714, 41.119997],
                长治: [113.08, 36.18],
                深圳: [114.07, 22.62],
                珠海: [113.52, 22.3],
                宿迁: [118.3, 33.96],
                咸阳: [108.72, 34.36],
                铜川: [109.11, 35.09],
                平度: [119.97, 36.77],
                佛山: [113.11, 23.05],
                海口: [110.35, 20.02],
                江门: [113.06, 22.61],
                章丘: [117.53, 36.72],
                肇庆: [112.44, 23.05],
                大连: [121.62, 38.92],
                临汾: [111.5, 36.08],
                吴江: [120.63, 31.16],
                石嘴山: [106.39, 39.04],
                沈阳: [123.38, 41.8],
                苏州: [120.62, 31.32],
                茂名: [110.88, 21.68],
                嘉兴: [120.76, 30.77],
                长春: [125.35, 43.88],
                胶州: [120.03336, 36.264622],
                银川: [106.27, 38.47],
                张家港: [120.555821, 31.875428],
                三门峡: [111.19, 34.76],
                锦州: [121.15, 41.13],
                南昌: [115.89, 28.68],
                柳州: [109.4, 24.33],
                三亚: [109.511909, 18.252847],
                自贡: [104.778442, 29.33903],
                吉林: [126.57, 43.87],
                阳江: [111.95, 21.85],
                泸州: [105.39, 28.91],
                西宁: [101.74, 36.56],
                宜宾: [104.56, 29.77],
                呼和浩特: [111.65, 40.82],
                成都: [104.06, 30.67],
                大同: [113.3, 40.12],
                镇江: [119.44, 32.2],
                桂林: [110.28, 25.29],
                张家界: [110.479191, 29.117096],
                宜兴: [119.82, 31.36],
                北海: [109.12, 21.49],
                西安: [108.95, 34.27],
                金坛: [119.56, 31.74],
                东营: [118.49, 37.46],
                牡丹江: [129.58, 44.6],
                遵义: [106.9, 27.7],
                绍兴: [120.58, 30.01],
                扬州: [119.42, 32.39],
                常州: [119.95, 31.79],
                潍坊: [119.1, 36.62],
                重庆: [106.54, 29.59],
                台州: [121.420757, 28.656386],
                南京: [118.78, 32.04],
                滨州: [118.03, 37.36],
                贵阳: [106.71, 26.57],
                无锡: [120.29, 31.59],
                本溪: [123.73, 41.3],
                克拉玛依: [84.77, 45.59],
                渭南: [109.5, 34.52],
                马鞍山: [118.48, 31.56],
                宝鸡: [107.15, 34.38],
                焦作: [113.21, 35.24],
                句容: [119.16, 31.95],
                北京: [116.46, 39.92],
                徐州: [117.2, 34.26],
                衡水: [115.72, 37.72],
                包头: [110, 40.58],
                绵阳: [104.73, 31.48],
                乌鲁木齐: [87.68, 43.77],
                枣庄: [117.57, 34.86],
                杭州: [120.19, 30.26],
                淄博: [118.05, 36.78],
                鞍山: [122.85, 41.12],
                溧阳: [119.48, 31.43],
                库尔勒: [86.06, 41.68],
                安阳: [114.35, 36.1],
                开封: [114.35, 34.79],
                济南: [117, 36.65],
                德阳: [104.37, 31.13],
                温州: [120.65, 28.01],
                九江: [115.97, 29.71],
                邯郸: [114.47, 36.6],
                临安: [119.72, 30.23],
                兰州: [103.73, 36.03],
                沧州: [116.83, 38.33],
                临沂: [118.35, 35.05],
                南充: [106.110698, 30.837793],
                天津: [117.2, 39.13],
                富阳: [119.95, 30.07],
                泰安: [117.13, 36.18],
                诸暨: [120.23, 29.71],
                郑州: [113.65, 34.76],
                哈尔滨: [126.63, 45.75],
                聊城: [115.97, 36.45],
                芜湖: [118.38, 31.33],
                唐山: [118.02, 39.63],
                平顶山: [113.29, 33.75],
                邢台: [114.48, 37.05],
                德州: [116.29, 37.45],
                济宁: [116.59, 35.38],
                荆州: [112.239741, 30.335165],
                宜昌: [111.3, 30.7],
                义乌: [120.06, 29.32],
                丽水: [119.92, 28.45],
                洛阳: [112.44, 34.7],
                秦皇岛: [119.57, 39.95],
                株洲: [113.16, 27.83],
                石家庄: [114.48, 38.03],
                莱芜: [117.67, 36.19],
                常德: [111.69, 29.05],
                保定: [115.48, 38.85],
                湘潭: [112.91, 27.87],
                金华: [119.64, 29.12],
                岳阳: [113.09, 29.37],
                长沙: [113, 28.21],
                衢州: [118.88, 28.97],
                廊坊: [116.7, 39.53],
                菏泽: [115.480656, 35.23375],
                合肥: [117.27, 31.86],
                武汉: [114.31, 30.52],
                大庆: [125.03, 46.58],
            }
            let convertData = function (data) {
                let res = []
                for (let i = 0; i < data.length; i++) {
                    let geoCoord = geoCoordMap[data[i].name]
                    if (geoCoord) {
                        res.push({
                            name: data[i].name,
                            value: geoCoord.concat(data[i].value),
                        })
                    }
                }
                return res
            }
            let option = {
                scale: 0.1,
                backgroundColor: 'transparent',
                title: {
                    text: '全国省市产品数据',
                    subtext: '数据来自淘宝',
                    // sublink: 'http://www.pm25.in',
                    left: 'center',
                    textStyle: {
                        color: '#fff',
                    },
                },
                // 这个属性用于实现光圈效果
                geo: {
                    show: true,
                    map: 'china',
                    zoom: 1.25,
                    label: {
                        normal: {
                            show: true,
                            textStyle: {
                                // 鼠标移入省份字体颜色变化
                                color: 'white',
                                // 鼠标移入省份字体大小变化
                                fontSize: '10px',
                            },
                        },
                    },
                },
                roam: true,
                itemStyle: {
                    normal: {
                        areacolor: 'skyblue',
                        borderColor: '#fff',
                    },
                    emphasis: {
                        areaColor: '#2B91B7',
                    },
                },
                series: [
                    {
                        name: '销量',
                        type: 'effectScatter',
                        coordinateSystem: 'geo',
                        data: convertData(data),
                        symbolSize(val) {
                            return val[2] / 10
                        },
                        showEffectOn: 'render',
                        rippleEffect: {
                            brushType: 'stroke',
                        },
                        hoverAnimation: true,
                        label: {
                            formatter: '{b}',
                            position: 'right',
                            show: true,
                        },
                        itemStyle: {
                            color: '#ddb926',
                        },
                        emphasis: {
                            label: {
                                show: true,
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        changeData(x) {
            let st = x[0]
            for (let i = 0; i < x.length - 1; i++) {
                x[i] = x[i + 1]
            }
            x[x.length - 1] = st
        },
        updataBarChart() {
            if (this.isHovered == true) {
                this.changeData(this.realData.cityList)
                this.changeData(this.realData.volumnList)
                let myChart = this.$echarts.init(this.$refs.firstMain)
                myChart.setOption({
                    xAxis: {
                        data: this.realData.cityList,
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                        },
                    ],
                })
            } else {
                clearInterval(this.timer)
            }
        },
        startDataupdataInterval() {
            const interval = 2000
            clearInterval(this.timer)
            setInterval(this.updataBarChart, interval)
        },
        startAction() {
            this.isHovered = false
        },
        cancelAction() {
            this.isHovered = true
        },
    },
    async mounted() {
        // 生命周期
        // 异步请求，使用await
        const res = await this.$http.get('myApp/screenData/')
        // 接收数据
        this.$set(this.realData, 'cityList', res.data.cityList)
        this.$set(this.realData, 'volumnList', res.data.volumnList)
        this.$set(this.realData, 'pieList', res.data.pieList)
        this.$set(this.realData, 'mapData', res.data.mapData)
        // console.log(this.realData.mapData)
    },
    async updated() {
        this.drawLeftTop()
        this.drawLeftBottom()
        this.drawCenterMap()
        this.startDataupdataInterval()
    },
}
</script>

<style scoped>
/*设置整体*/
.layout {
    height: 100vh;
    width: 100%;
    background: url('../assets/imgs/bg03.jpg');
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header div {
    width: 50%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.header div span {
    color: steelblue;
    font-weight: bold;
    font-size: 23px;
    padding: 10px;
}

.content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.content .left {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
    margin-left: 30px;
}

.content .left div {
    flex-grow: 1;
    height: 300px;
    width: 380px;
    padding: 5px;
}

.content .right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
}

.content .right div {
    flex-grow: 1;
    height: 300px;
    width: 350px;
    padding: 5px;
}

.content .center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 600px;
}
</style>

4.折线图

1.折线图后端

  1. myApp/utils/getScreenData.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

    def getPieData():
        goods = list(getAllGoods())
        goodsNumber = {}
        for i in goods:
            if goodsNumber.get(i.type,-1) == -1:
                goodsNumber[i.type] = 1
            else:
                goodsNumber[i.type] += 1
        pieList = []
        for k,v in goodsNumber.items():
            pieList.append({
                'name': k,
                'value': v
            })
        return pieList

    def getMapData():
        goods = list(getAllGoods())
        cityVolume = {}
        for i in goods:
            if cityVolume.get(i.address,-1) == -1:
                cityVolume[i.address] = 1
            else:
                cityVolume[i.address] += 1
        mapData = []
        for k,v in cityVolume.items():
            mapData.append({
                'name': k,
                'value': v
            })
        return mapData

    def getLineData():
        goods = list(getAllGoods())
        priceDict = {'0-100': 0, '100-200': 0, '200-500': 0, '500-1000': 0, '千元以上': 0}
        for i in goods:
            p = float(i.price)
            if p < 100:
                priceDict['0-100'] += 1
            elif p >= 100 and p < 200:
                priceDict['100-200'] += 1
            elif p >= 200 and p < 500:
                priceDict['200-500'] += 1
            elif p >= 500 and p < 1000:
                priceDict['500-1000'] += 1
            else:
                priceDict['千元以上'] += 1
        LineRowData = list(priceDict.keys())
        LineColData = list(priceDict.values())
        return LineRowData,LineColData

  2. myApp/views.py

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    from django.shortcuts import render
    from django.http import JsonResponse
    from .utils import getScreenData

    # Create your views here.

    def screenData(request):
        if request.method == "GET":
            cityList,volumnList = getScreenData.getSquareData()
            pieList = getScreenData.getPieData()
            mapData = getScreenData.getMapData()
            LineRowData,LineColData = getScreenData.getLineData()
            return JsonResponse({
                'cityList': cityList,
                'volumnList': volumnList,
                'pieList': pieList,
                'mapData': mapData,
                'LineRowData': LineRowData,
                'LineColData': LineColData
            })

2.前后端关联

Home.vue的全部代码：

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<template>
    <div class="layout">
        <!-- 头部 -->
        <div class="header">
            <dv-decoration-8 style="width:300px;height:50px;" />
            <div>
                <span class="title-text">大数据可视化平台</span>
                <dv-decoration-5 style="width:300px;height:40px;" />
            </div>
            <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
        </div>

        <!-- 内容 -->
        <div class="content">
            <div class="left">
                <dv-border-box-13>
                    <dv-decoration-1 style="width:200px;height:10px;" />
                    <div ref="firstMain" style="width:350px;height:270px;" v-bind:key="realData.volumnList[0]"
                        @mouseenter="startAction" @mouseleave="cancelAction"></div>
                </dv-border-box-13>
                <dv-border-box-8>
                    <div ref="secondMain" style="width:350px;height:270px;" v-bind:key="realData.pieList[0][1]"></div>
                </dv-border-box-8>
            </div>
            <div class="center">
                <div ref="thirdMain" style="width: 450px;height: 450px;" v-bind:key="realData.mapData[0][1]"></div>
            </div>
            <div class="right">
                <dv-border-box-12>
                    <dv-decoration-3 style="width:250px;height:10px;" />
                    <div ref="fourthMain" style="width: 350px;height: 270px;" v-bind:key="realData.LineColData[1]"></div>
                </dv-border-box-12>
                <dv-border-box-1>
                    <div></div>
                </dv-border-box-1>
            </div>
        </div>
    </div>
</template>

<script>
import getMap from '@/api/getMap.js'

// 注释
export default {
    data() {
        // 函数体
        return {
            isHovered: true,
            realData: {
                cityList: [1],
                volumnList: [1],
                pieList: [{ name: 'data1', value: 10 }],
                mapData: [{ name: 'data2', value: 10 }],
                LineRowData: [],
                LineColData: [1],
            },
        }
    },
    methods: {
        // 方法
        drawLeftTop() {
            let myChart = this.$echarts.init(this.$refs.firstMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.cityList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                dataZoom: [
                    {
                        type: 'slider',
                        start: 0,
                        end: 85,
                        show: false,
                    },
                ],
                title: {
                    text: '各地区销售数据',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                toolbox: {
                    show: true,
                    feature: {
                        // dataView: { show: true, realData: true },
                        magicType: { show: true, type: ['line', 'bar'] },
                        restore: { show: true },
                        SaveAsImage: { show: true },
                    },
                },
                legend: {
                    orient: 'vertical',
                    right: 'right',
                    data: ['销售数据'],
                    textStyle: {
                        color: 'grey',
                    },
                    top: '8%',
                    left: '70%',
                },
                tooltip: {
                    trigger: 'item',
                    formatter: '',
                },
                yAxis: {
                    type: 'value',
                    data: this.realData.volumnList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                series: [
                    {
                        name: '销售数据',
                        data: this.realData.volumnList,
                        type: 'bar',
                        label: {
                            show: true,
                            position: 'top',
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawLeftBottom() {
            let myChart = this.$echarts.init(this.$refs.secondMain)
            let option = {
                title: {
                    text: '各类型产品占比',
                    subtext: '',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    orient: 'vertical',
                    left: 'left',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                series: [
                    {
                        name: '数量',
                        type: 'pie',
                        radius: '50%',
                        data: this.realData.pieList,
                        emphasis: {
                            itemStyle: {
                                shadowBlur: 10,
                                shadowOffsetX: 0,
                                shadowColor: 'rgba(0, 0, 0, 0.5)',
                            },
                        },
                    },
                ],
                label: {
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        async drawCenterMap() {
            let myChart = this.$echarts.init(this.$refs.thirdMain)
            const res = await getMap
            this.$echarts.registerMap('china', res.data)
            let data = this.realData.mapData
            let geoCoordMap = {
                海门: [121.15, 31.89],
                鄂尔多斯: [109.781327, 39.608266],
                招远: [120.38, 37.35],
                舟山: [122.207216, 29.985295],
                齐齐哈尔: [123.97, 47.33],
                盐城: [120.13, 33.38],
                赤峰: [118.87, 42.28],
                青岛: [120.33, 36.07],
                乳山: [121.52, 36.89],
                金昌: [102.188043, 38.520089],
                泉州: [118.58, 24.93],
                莱西: [120.53, 36.86],
                日照: [119.46, 35.42],
                胶南: [119.97, 35.88],
                南通: [121.05, 32.08],
                拉萨: [91.11, 29.97],
                云浮: [112.02, 22.93],
                梅州: [116.1, 24.55],
                文登: [122.05, 37.2],
                上海: [121.48, 31.22],
                攀枝花: [101.718637, 26.582347],
                威海: [122.1, 37.5],
                承德: [117.93, 40.97],
                厦门: [118.1, 24.46],
                汕尾: [115.375279, 22.786211],
                潮州: [116.63, 23.68],
                丹东: [124.37, 40.13],
                太仓: [121.1, 31.45],
                曲靖: [103.79, 25.51],
                烟台: [121.39, 37.52],
                福州: [119.3, 26.08],
                瓦房店: [121.979603, 39.627114],
                即墨: [120.45, 36.38],
                抚顺: [123.97, 41.97],
                玉溪: [102.52, 24.35],
                张家口: [114.87, 40.82],
                阳泉: [113.57, 37.85],
                莱州: [119.942327, 37.177017],
                湖州: [120.1, 30.86],
                汕头: [116.69, 23.39],
                昆山: [120.95, 31.39],
                宁波: [121.56, 29.86],
                湛江: [110.359377, 21.270708],
                揭阳: [116.35, 23.55],
                荣成: [122.41, 37.16],
                连云港: [119.16, 34.59],
                葫芦岛: [120.836932, 40.711052],
                常熟: [120.74, 31.64],
                东莞: [113.75, 23.04],
                河源: [114.68, 23.73],
                淮安: [119.15, 33.5],
                泰州: [119.9, 32.49],
                南宁: [108.33, 22.84],
                营口: [122.18, 40.65],
                惠州: [114.4, 23.09],
                江阴: [120.26, 31.91],
                蓬莱: [120.75, 37.8],
                韶关: [113.62, 24.84],
                嘉峪关: [98.289152, 39.77313],
                广州: [113.23, 23.16],
                延安: [109.47, 36.6],
                太原: [112.53, 37.87],
                清远: [113.01, 23.7],
                中山: [113.38, 22.52],
                昆明: [102.73, 25.04],
                寿光: [118.73, 36.86],
                盘锦: [122.070714, 41.119997],
                长治: [113.08, 36.18],
                深圳: [114.07, 22.62],
                珠海: [113.52, 22.3],
                宿迁: [118.3, 33.96],
                咸阳: [108.72, 34.36],
                铜川: [109.11, 35.09],
                平度: [119.97, 36.77],
                佛山: [113.11, 23.05],
                海口: [110.35, 20.02],
                江门: [113.06, 22.61],
                章丘: [117.53, 36.72],
                肇庆: [112.44, 23.05],
                大连: [121.62, 38.92],
                临汾: [111.5, 36.08],
                吴江: [120.63, 31.16],
                石嘴山: [106.39, 39.04],
                沈阳: [123.38, 41.8],
                苏州: [120.62, 31.32],
                茂名: [110.88, 21.68],
                嘉兴: [120.76, 30.77],
                长春: [125.35, 43.88],
                胶州: [120.03336, 36.264622],
                银川: [106.27, 38.47],
                张家港: [120.555821, 31.875428],
                三门峡: [111.19, 34.76],
                锦州: [121.15, 41.13],
                南昌: [115.89, 28.68],
                柳州: [109.4, 24.33],
                三亚: [109.511909, 18.252847],
                自贡: [104.778442, 29.33903],
                吉林: [126.57, 43.87],
                阳江: [111.95, 21.85],
                泸州: [105.39, 28.91],
                西宁: [101.74, 36.56],
                宜宾: [104.56, 29.77],
                呼和浩特: [111.65, 40.82],
                成都: [104.06, 30.67],
                大同: [113.3, 40.12],
                镇江: [119.44, 32.2],
                桂林: [110.28, 25.29],
                张家界: [110.479191, 29.117096],
                宜兴: [119.82, 31.36],
                北海: [109.12, 21.49],
                西安: [108.95, 34.27],
                金坛: [119.56, 31.74],
                东营: [118.49, 37.46],
                牡丹江: [129.58, 44.6],
                遵义: [106.9, 27.7],
                绍兴: [120.58, 30.01],
                扬州: [119.42, 32.39],
                常州: [119.95, 31.79],
                潍坊: [119.1, 36.62],
                重庆: [106.54, 29.59],
                台州: [121.420757, 28.656386],
                南京: [118.78, 32.04],
                滨州: [118.03, 37.36],
                贵阳: [106.71, 26.57],
                无锡: [120.29, 31.59],
                本溪: [123.73, 41.3],
                克拉玛依: [84.77, 45.59],
                渭南: [109.5, 34.52],
                马鞍山: [118.48, 31.56],
                宝鸡: [107.15, 34.38],
                焦作: [113.21, 35.24],
                句容: [119.16, 31.95],
                北京: [116.46, 39.92],
                徐州: [117.2, 34.26],
                衡水: [115.72, 37.72],
                包头: [110, 40.58],
                绵阳: [104.73, 31.48],
                乌鲁木齐: [87.68, 43.77],
                枣庄: [117.57, 34.86],
                杭州: [120.19, 30.26],
                淄博: [118.05, 36.78],
                鞍山: [122.85, 41.12],
                溧阳: [119.48, 31.43],
                库尔勒: [86.06, 41.68],
                安阳: [114.35, 36.1],
                开封: [114.35, 34.79],
                济南: [117, 36.65],
                德阳: [104.37, 31.13],
                温州: [120.65, 28.01],
                九江: [115.97, 29.71],
                邯郸: [114.47, 36.6],
                临安: [119.72, 30.23],
                兰州: [103.73, 36.03],
                沧州: [116.83, 38.33],
                临沂: [118.35, 35.05],
                南充: [106.110698, 30.837793],
                天津: [117.2, 39.13],
                富阳: [119.95, 30.07],
                泰安: [117.13, 36.18],
                诸暨: [120.23, 29.71],
                郑州: [113.65, 34.76],
                哈尔滨: [126.63, 45.75],
                聊城: [115.97, 36.45],
                芜湖: [118.38, 31.33],
                唐山: [118.02, 39.63],
                平顶山: [113.29, 33.75],
                邢台: [114.48, 37.05],
                德州: [116.29, 37.45],
                济宁: [116.59, 35.38],
                荆州: [112.239741, 30.335165],
                宜昌: [111.3, 30.7],
                义乌: [120.06, 29.32],
                丽水: [119.92, 28.45],
                洛阳: [112.44, 34.7],
                秦皇岛: [119.57, 39.95],
                株洲: [113.16, 27.83],
                石家庄: [114.48, 38.03],
                莱芜: [117.67, 36.19],
                常德: [111.69, 29.05],
                保定: [115.48, 38.85],
                湘潭: [112.91, 27.87],
                金华: [119.64, 29.12],
                岳阳: [113.09, 29.37],
                长沙: [113, 28.21],
                衢州: [118.88, 28.97],
                廊坊: [116.7, 39.53],
                菏泽: [115.480656, 35.23375],
                合肥: [117.27, 31.86],
                武汉: [114.31, 30.52],
                大庆: [125.03, 46.58],
            }
            let convertData = function (data) {
                let res = []
                for (let i = 0; i < data.length; i++) {
                    let geoCoord = geoCoordMap[data[i].name]
                    if (geoCoord) {
                        res.push({
                            name: data[i].name,
                            value: geoCoord.concat(data[i].value),
                        })
                    }
                }
                return res
            }
            let option = {
                scale: 0.1,
                backgroundColor: 'transparent',
                title: {
                    text: '全国省市产品数据',
                    subtext: '数据来自淘宝',
                    // sublink: 'http://www.pm25.in',
                    left: 'center',
                    textStyle: {
                        color: '#fff',
                    },
                },
                // 这个属性用于实现光圈效果
                geo: {
                    show: true,
                    map: 'china',
                    zoom: 1.25,
                    label: {
                        normal: {
                            show: true,
                            textStyle: {
                                // 鼠标移入省份字体颜色变化
                                color: 'white',
                                // 鼠标移入省份字体大小变化
                                fontSize: '10px',
                            },
                        },
                    },
                },
                roam: true,
                itemStyle: {
                    normal: {
                        areacolor: 'skyblue',
                        borderColor: '#fff',
                    },
                    emphasis: {
                        areaColor: '#2B91B7',
                    },
                },
                series: [
                    {
                        name: '销量',
                        type: 'effectScatter',
                        coordinateSystem: 'geo',
                        data: convertData(data),
                        symbolSize(val) {
                            return val[2] / 10
                        },
                        showEffectOn: 'render',
                        rippleEffect: {
                            brushType: 'stroke',
                        },
                        hoverAnimation: true,
                        label: {
                            formatter: '{b}',
                            position: 'right',
                            show: true,
                        },
                        itemStyle: {
                            color: '#ddb926',
                        },
                        emphasis: {
                            label: {
                                show: true,
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawRightTop() {
            let myChart = this.$echarts.init(this.$refs.fourthMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.LineRowData,
                    axisLabel: {
                        interval: 0, // 强制显示所有标签
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                    name: '元',
                },
                yAxis: {
                    type: 'value',
                    name: '个',
                    axisLabel: {
                        interval: 0, // 强制显示所有标签
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                title: {
                    text: '商品价格占比',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    data: ['占比情况'],
                    textStyle: {
                        color: '#C0C0C0',
                    },
                    top: '8%',
                    right: '10%',
                },
                series: [
                    {
                        name: '占比情况',
                        data: this.realData.LineColData,
                        type: 'line',
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        changeData(x) {
            let st = x[0]
            for (let i = 0; i < x.length - 1; i++) {
                x[i] = x[i + 1]
            }
            x[x.length - 1] = st
        },
        updataBarChart() {
            if (this.isHovered == true) {
                this.changeData(this.realData.cityList)
                this.changeData(this.realData.volumnList)
                let myChart = this.$echarts.init(this.$refs.firstMain)
                myChart.setOption({
                    xAxis: {
                        data: this.realData.cityList,
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                        },
                    ],
                })
            } else {
                clearInterval(this.timer)
            }
        },
        startDataupdataInterval() {
            const interval = 2000
            clearInterval(this.timer)
            setInterval(this.updataBarChart, interval)
        },
        startAction() {
            this.isHovered = false
        },
        cancelAction() {
            this.isHovered = true
        },
    },
    async mounted() {
        // 生命周期
        // 异步请求，使用await
        const res = await this.$http.get('myApp/screenData/')
        // 接收数据
        this.$set(this.realData, 'cityList', res.data.cityList)
        this.$set(this.realData, 'volumnList', res.data.volumnList)
        this.$set(this.realData, 'pieList', res.data.pieList)
        this.$set(this.realData, 'mapData', res.data.mapData)
        this.$set(this.realData, 'LineRowData', res.data.LineRowData)
        this.$set(this.realData, 'LineColData', res.data.LineColData)
        // console.log(this.realData.LineRowData, this.realData.LineColData)
    },
    async updated() {
        this.drawLeftTop()
        this.drawLeftBottom()
        this.drawCenterMap()
        this.startDataupdataInterval()
        this.drawRightTop()
    },
}
</script>

<style scoped>
/*设置整体*/
.layout {
    height: 100vh;
    width: 100%;
    background: url('../assets/imgs/bg03.jpg');
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header div {
    width: 50%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.header div span {
    color: steelblue;
    font-weight: bold;
    font-size: 23px;
    padding: 10px;
}

.content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.content .left {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
    margin-left: 30px;
}

.content .left div {
    flex-grow: 1;
    height: 300px;
    width: 380px;
    padding: 5px;
}

.content .right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
}

.content .right div {
    flex-grow: 1;
    height: 300px;
    width: 350px;
    padding: 5px;
}

.content .center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 600px;
}
</style>

5.动态环图

1.动态环图后端

  1. myApp/utils/getScreenData.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

    def getPieData():
        goods = list(getAllGoods())
        goodsNumber = {}
        for i in goods:
            if goodsNumber.get(i.type,-1) == -1:
                goodsNumber[i.type] = 1
            else:
                goodsNumber[i.type] += 1
        pieList = []
        for k,v in goodsNumber.items():
            pieList.append({
                'name': k,
                'value': v
            })
        return pieList

    def getMapData():
        goods = list(getAllGoods())
        cityVolume = {}
        for i in goods:
            if cityVolume.get(i.address,-1) == -1:
                cityVolume[i.address] = 1
            else:
                cityVolume[i.address] += 1
        mapData = []
        for k,v in cityVolume.items():
            mapData.append({
                'name': k,
                'value': v
            })
        return mapData

    def getLineData():
        goods = list(getAllGoods())
        priceDict = {'0-100': 0, '100-200': 0, '200-500': 0, '500-1000': 0, '千元以上': 0}
        for i in goods:
            p = float(i.price)
            if p < 100:
                priceDict['0-100'] += 1
            elif p >= 100 and p < 200:
                priceDict['100-200'] += 1
            elif p >= 200 and p < 500:
                priceDict['200-500'] += 1
            elif p >= 500 and p < 1000:
                priceDict['500-1000'] += 1
            else:
                priceDict['千元以上'] += 1
        LineRowData = list(priceDict.keys())
        LineColData = list(priceDict.values())
        return LineRowData,LineColData

    def getCircleData():
        goods = list(getAllGoods())
        sumDict = {}
        sumPice = 0
        for i in goods:
            p = float(i.price)
            sumPice += p
            if sumDict.get(i.type,-1) == -1:
                sumDict[i.type] = p
            else:
                sumDict[i.type] += p
        for key in sumDict:
            sumDict[key] = round(sumDict[key] / sumPice * 100, 0)
        circlieList = []
        for k,v in sumDict.items():
            circlieList.append({
                'name': k,
                "value": v
            })
        return circlieList

  2. myApp/views.py

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    from .getBaseData import *

    def getSquareData():
        goods = list(getAllGoods())
        goodVolumn = {}
        for i in goods:
            if goodVolumn.get(i.address,-1): # 未获取到键，则赋值给销量
                goodVolumn[i.address] = int(i.buy_len)
            else:
                goodVolumn[i.address] += int(i.buy_len)
        goodsSortVolumn = sorted(goodVolumn.items(),key=lambda x:x[1],reverse=True) # 对销量排序
        cityList = []
        volumnList = []
        for i in goodsSortVolumn:
            cityList.append(i[0])
            volumnList.append(i[1])
        return cityList[:7],volumnList[:7]

    def getPieData():
        goods = list(getAllGoods())
        goodsNumber = {}
        for i in goods:
            if goodsNumber.get(i.type,-1) == -1:
                goodsNumber[i.type] = 1
            else:
                goodsNumber[i.type] += 1
        pieList = []
        for k,v in goodsNumber.items():
            pieList.append({
                'name': k,
                'value': v
            })
        return pieList

    def getMapData():
        goods = list(getAllGoods())
        cityVolume = {}
        for i in goods:
            if cityVolume.get(i.address,-1) == -1:
                cityVolume[i.address] = 1
            else:
                cityVolume[i.address] += 1
        mapData = []
        for k,v in cityVolume.items():
            mapData.append({
                'name': k,
                'value': v
            })
        return mapData

    def getLineData():
        goods = list(getAllGoods())
        priceDict = {'0-100': 0, '100-200': 0, '200-500': 0, '500-1000': 0, '千元以上': 0}
        for i in goods:
            p = float(i.price)
            if p < 100:
                priceDict['0-100'] += 1
            elif p >= 100 and p < 200:
                priceDict['100-200'] += 1
            elif p >= 200 and p < 500:
                priceDict['200-500'] += 1
            elif p >= 500 and p < 1000:
                priceDict['500-1000'] += 1
            else:
                priceDict['千元以上'] += 1
        LineRowData = list(priceDict.keys())
        LineColData = list(priceDict.values())
        return LineRowData,LineColData

    def getCircleData():
        goods = list(getAllGoods())
        sumDict = {}
        sumPice = 0
        for i in goods:
            p = float(i.price)
            sumPice += p
            if sumDict.get(i.type,-1) == -1:
                sumDict[i.type] = p
            else:
                sumDict[i.type] += p
        for key in sumDict:
            sumDict[key] = round(sumDict[key] / sumPice * 100, 0)
        circlieList = []
        for k,v in sumDict.items():
            circlieList.append({
                'name': k,
                "value": v
            })
        return circlieList

2.前后端关联

Home.vue的全部代码：

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<template>
    <div class="layout">
        <!-- 头部 -->
        <div class="header">
            <dv-decoration-8 style="width:300px;height:50px;" />
            <div>
                <span class="title-text">大数据可视化平台</span>
                <dv-decoration-5 style="width:300px;height:40px;" />
            </div>
            <dv-decoration-8 :reverse="true" style="width:300px;height:50px;" />
        </div>

        <!-- 内容 -->
        <div class="content">
            <div class="left">
                <dv-border-box-13>
                    <dv-decoration-1 style="width:200px;height:10px;" />
                    <div ref="firstMain" style="width:350px;height:270px;" v-bind:key="realData.volumnList[0]"
                        @mouseenter="startAction" @mouseleave="cancelAction"></div>
                </dv-border-box-13>
                <dv-border-box-8>
                    <div ref="secondMain" style="width:350px;height:270px;" v-bind:key="realData.pieList[0][1]"></div>
                </dv-border-box-8>
            </div>
            <div class="center">
                <div ref="thirdMain" style="width: 450px;height: 450px;" v-bind:key="realData.mapData[0][1]"></div>
            </div>
            <div class="right">
                <dv-border-box-12>
                    <dv-decoration-3 style="width:250px;height:10px;" />
                    <div ref="fourthMain" style="width: 350px;height: 270px;" v-bind:key="realData.LineColData[1]">
                    </div>
                </dv-border-box-12>
                <dv-border-box-1>
                    <h1 style="font-size: 18px;text-align: center;color: #C0C0C0;margin-top: 12px;">各类型销售额占比</h1>
                    <dv-active-ring-chart :config="config" style="width:300px;height:210px;margin: 12px auto"
                        v-bind:key="config.data[0][0]"/>
                </dv-border-box-1>
            </div>
        </div>
    </div>
</template>

<script>
import getMap from '@/api/getMap.js'
// import { config } from 'vue/types/umd';

// 注释
export default {
    data() {
        // 函数体
        return {
            isHovered: true,
            realData: {
                cityList: [1],
                volumnList: [1],
                pieList: [{ name: 'data1', value: 10 }],
                mapData: [{ name: 'data2', value: 10 }],
                LineRowData: [],
                LineColData: [1],
            },
            config: {
                data: [0][0],
            },
        }
    },
    methods: {
        // 方法
        drawLeftTop() {
            let myChart = this.$echarts.init(this.$refs.firstMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.cityList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                dataZoom: [
                    {
                        type: 'slider',
                        start: 0,
                        end: 85,
                        show: false,
                    },
                ],
                title: {
                    text: '各地区销售数据',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                toolbox: {
                    show: true,
                    feature: {
                        // dataView: { show: true, realData: true },
                        magicType: { show: true, type: ['line', 'bar'] },
                        restore: { show: true },
                        SaveAsImage: { show: true },
                    },
                },
                legend: {
                    orient: 'vertical',
                    right: 'right',
                    data: ['销售数据'],
                    textStyle: {
                        color: 'grey',
                    },
                    top: '8%',
                    left: '70%',
                },
                tooltip: {
                    trigger: 'item',
                    formatter: '',
                },
                yAxis: {
                    type: 'value',
                    data: this.realData.volumnList,
                    axisLabel: {
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                series: [
                    {
                        name: '销售数据',
                        data: this.realData.volumnList,
                        type: 'bar',
                        label: {
                            show: true,
                            position: 'top',
                            textStyle: {
                                color: '#C0C0C0',
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawLeftBottom() {
            let myChart = this.$echarts.init(this.$refs.secondMain)
            let option = {
                title: {
                    text: '各类型产品占比',
                    subtext: '',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    orient: 'vertical',
                    left: 'left',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                series: [
                    {
                        name: '数量',
                        type: 'pie',
                        radius: '50%',
                        data: this.realData.pieList,
                        emphasis: {
                            itemStyle: {
                                shadowBlur: 10,
                                shadowOffsetX: 0,
                                shadowColor: 'rgba(0, 0, 0, 0.5)',
                            },
                        },
                    },
                ],
                label: {
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        async drawCenterMap() {
            let myChart = this.$echarts.init(this.$refs.thirdMain)
            const res = await getMap
            this.$echarts.registerMap('china', res.data)
            let data = this.realData.mapData
            let geoCoordMap = {
                海门: [121.15, 31.89],
                鄂尔多斯: [109.781327, 39.608266],
                招远: [120.38, 37.35],
                舟山: [122.207216, 29.985295],
                齐齐哈尔: [123.97, 47.33],
                盐城: [120.13, 33.38],
                赤峰: [118.87, 42.28],
                青岛: [120.33, 36.07],
                乳山: [121.52, 36.89],
                金昌: [102.188043, 38.520089],
                泉州: [118.58, 24.93],
                莱西: [120.53, 36.86],
                日照: [119.46, 35.42],
                胶南: [119.97, 35.88],
                南通: [121.05, 32.08],
                拉萨: [91.11, 29.97],
                云浮: [112.02, 22.93],
                梅州: [116.1, 24.55],
                文登: [122.05, 37.2],
                上海: [121.48, 31.22],
                攀枝花: [101.718637, 26.582347],
                威海: [122.1, 37.5],
                承德: [117.93, 40.97],
                厦门: [118.1, 24.46],
                汕尾: [115.375279, 22.786211],
                潮州: [116.63, 23.68],
                丹东: [124.37, 40.13],
                太仓: [121.1, 31.45],
                曲靖: [103.79, 25.51],
                烟台: [121.39, 37.52],
                福州: [119.3, 26.08],
                瓦房店: [121.979603, 39.627114],
                即墨: [120.45, 36.38],
                抚顺: [123.97, 41.97],
                玉溪: [102.52, 24.35],
                张家口: [114.87, 40.82],
                阳泉: [113.57, 37.85],
                莱州: [119.942327, 37.177017],
                湖州: [120.1, 30.86],
                汕头: [116.69, 23.39],
                昆山: [120.95, 31.39],
                宁波: [121.56, 29.86],
                湛江: [110.359377, 21.270708],
                揭阳: [116.35, 23.55],
                荣成: [122.41, 37.16],
                连云港: [119.16, 34.59],
                葫芦岛: [120.836932, 40.711052],
                常熟: [120.74, 31.64],
                东莞: [113.75, 23.04],
                河源: [114.68, 23.73],
                淮安: [119.15, 33.5],
                泰州: [119.9, 32.49],
                南宁: [108.33, 22.84],
                营口: [122.18, 40.65],
                惠州: [114.4, 23.09],
                江阴: [120.26, 31.91],
                蓬莱: [120.75, 37.8],
                韶关: [113.62, 24.84],
                嘉峪关: [98.289152, 39.77313],
                广州: [113.23, 23.16],
                延安: [109.47, 36.6],
                太原: [112.53, 37.87],
                清远: [113.01, 23.7],
                中山: [113.38, 22.52],
                昆明: [102.73, 25.04],
                寿光: [118.73, 36.86],
                盘锦: [122.070714, 41.119997],
                长治: [113.08, 36.18],
                深圳: [114.07, 22.62],
                珠海: [113.52, 22.3],
                宿迁: [118.3, 33.96],
                咸阳: [108.72, 34.36],
                铜川: [109.11, 35.09],
                平度: [119.97, 36.77],
                佛山: [113.11, 23.05],
                海口: [110.35, 20.02],
                江门: [113.06, 22.61],
                章丘: [117.53, 36.72],
                肇庆: [112.44, 23.05],
                大连: [121.62, 38.92],
                临汾: [111.5, 36.08],
                吴江: [120.63, 31.16],
                石嘴山: [106.39, 39.04],
                沈阳: [123.38, 41.8],
                苏州: [120.62, 31.32],
                茂名: [110.88, 21.68],
                嘉兴: [120.76, 30.77],
                长春: [125.35, 43.88],
                胶州: [120.03336, 36.264622],
                银川: [106.27, 38.47],
                张家港: [120.555821, 31.875428],
                三门峡: [111.19, 34.76],
                锦州: [121.15, 41.13],
                南昌: [115.89, 28.68],
                柳州: [109.4, 24.33],
                三亚: [109.511909, 18.252847],
                自贡: [104.778442, 29.33903],
                吉林: [126.57, 43.87],
                阳江: [111.95, 21.85],
                泸州: [105.39, 28.91],
                西宁: [101.74, 36.56],
                宜宾: [104.56, 29.77],
                呼和浩特: [111.65, 40.82],
                成都: [104.06, 30.67],
                大同: [113.3, 40.12],
                镇江: [119.44, 32.2],
                桂林: [110.28, 25.29],
                张家界: [110.479191, 29.117096],
                宜兴: [119.82, 31.36],
                北海: [109.12, 21.49],
                西安: [108.95, 34.27],
                金坛: [119.56, 31.74],
                东营: [118.49, 37.46],
                牡丹江: [129.58, 44.6],
                遵义: [106.9, 27.7],
                绍兴: [120.58, 30.01],
                扬州: [119.42, 32.39],
                常州: [119.95, 31.79],
                潍坊: [119.1, 36.62],
                重庆: [106.54, 29.59],
                台州: [121.420757, 28.656386],
                南京: [118.78, 32.04],
                滨州: [118.03, 37.36],
                贵阳: [106.71, 26.57],
                无锡: [120.29, 31.59],
                本溪: [123.73, 41.3],
                克拉玛依: [84.77, 45.59],
                渭南: [109.5, 34.52],
                马鞍山: [118.48, 31.56],
                宝鸡: [107.15, 34.38],
                焦作: [113.21, 35.24],
                句容: [119.16, 31.95],
                北京: [116.46, 39.92],
                徐州: [117.2, 34.26],
                衡水: [115.72, 37.72],
                包头: [110, 40.58],
                绵阳: [104.73, 31.48],
                乌鲁木齐: [87.68, 43.77],
                枣庄: [117.57, 34.86],
                杭州: [120.19, 30.26],
                淄博: [118.05, 36.78],
                鞍山: [122.85, 41.12],
                溧阳: [119.48, 31.43],
                库尔勒: [86.06, 41.68],
                安阳: [114.35, 36.1],
                开封: [114.35, 34.79],
                济南: [117, 36.65],
                德阳: [104.37, 31.13],
                温州: [120.65, 28.01],
                九江: [115.97, 29.71],
                邯郸: [114.47, 36.6],
                临安: [119.72, 30.23],
                兰州: [103.73, 36.03],
                沧州: [116.83, 38.33],
                临沂: [118.35, 35.05],
                南充: [106.110698, 30.837793],
                天津: [117.2, 39.13],
                富阳: [119.95, 30.07],
                泰安: [117.13, 36.18],
                诸暨: [120.23, 29.71],
                郑州: [113.65, 34.76],
                哈尔滨: [126.63, 45.75],
                聊城: [115.97, 36.45],
                芜湖: [118.38, 31.33],
                唐山: [118.02, 39.63],
                平顶山: [113.29, 33.75],
                邢台: [114.48, 37.05],
                德州: [116.29, 37.45],
                济宁: [116.59, 35.38],
                荆州: [112.239741, 30.335165],
                宜昌: [111.3, 30.7],
                义乌: [120.06, 29.32],
                丽水: [119.92, 28.45],
                洛阳: [112.44, 34.7],
                秦皇岛: [119.57, 39.95],
                株洲: [113.16, 27.83],
                石家庄: [114.48, 38.03],
                莱芜: [117.67, 36.19],
                常德: [111.69, 29.05],
                保定: [115.48, 38.85],
                湘潭: [112.91, 27.87],
                金华: [119.64, 29.12],
                岳阳: [113.09, 29.37],
                长沙: [113, 28.21],
                衢州: [118.88, 28.97],
                廊坊: [116.7, 39.53],
                菏泽: [115.480656, 35.23375],
                合肥: [117.27, 31.86],
                武汉: [114.31, 30.52],
                大庆: [125.03, 46.58],
            }
            let convertData = function (data) {
                let res = []
                for (let i = 0; i < data.length; i++) {
                    let geoCoord = geoCoordMap[data[i].name]
                    if (geoCoord) {
                        res.push({
                            name: data[i].name,
                            value: geoCoord.concat(data[i].value),
                        })
                    }
                }
                return res
            }
            let option = {
                scale: 0.1,
                backgroundColor: 'transparent',
                title: {
                    text: '全国省市产品数据',
                    subtext: '数据来自淘宝',
                    // sublink: 'http://www.pm25.in',
                    left: 'center',
                    textStyle: {
                        color: '#fff',
                    },
                },
                // 这个属性用于实现光圈效果
                geo: {
                    show: true,
                    map: 'china',
                    zoom: 1.25,
                    label: {
                        normal: {
                            show: true,
                            textStyle: {
                                // 鼠标移入省份字体颜色变化
                                color: 'white',
                                // 鼠标移入省份字体大小变化
                                fontSize: '10px',
                            },
                        },
                    },
                },
                roam: true,
                itemStyle: {
                    normal: {
                        areacolor: 'skyblue',
                        borderColor: '#fff',
                    },
                    emphasis: {
                        areaColor: '#2B91B7',
                    },
                },
                series: [
                    {
                        name: '销量',
                        type: 'effectScatter',
                        coordinateSystem: 'geo',
                        data: convertData(data),
                        symbolSize(val) {
                            return val[2] / 10
                        },
                        showEffectOn: 'render',
                        rippleEffect: {
                            brushType: 'stroke',
                        },
                        hoverAnimation: true,
                        label: {
                            formatter: '{b}',
                            position: 'right',
                            show: true,
                        },
                        itemStyle: {
                            color: '#ddb926',
                        },
                        emphasis: {
                            label: {
                                show: true,
                            },
                        },
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        drawRightTop() {
            let myChart = this.$echarts.init(this.$refs.fourthMain)
            let option = {
                xAxis: {
                    type: 'category',
                    data: this.realData.LineRowData,
                    axisLabel: {
                        interval: 0, // 强制显示所有标签
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                    name: '元',
                },
                yAxis: {
                    type: 'value',
                    name: '个',
                    axisLabel: {
                        interval: 0, // 强制显示所有标签
                        textStyle: {
                            color: '#C0C0C0',
                        },
                    },
                },
                title: {
                    text: '商品价格占比',
                    left: 'center',
                    textStyle: {
                        color: '#C0C0C0',
                    },
                },
                tooltip: {
                    trigger: 'item',
                },
                legend: {
                    data: ['占比情况'],
                    textStyle: {
                        color: '#C0C0C0',
                    },
                    top: '8%',
                    right: '10%',
                },
                series: [
                    {
                        name: '占比情况',
                        data: this.realData.LineColData,
                        type: 'line',
                    },
                ],
            }
            if (option) {
                myChart.setOption(option)
            }
        },
        changeData(x) {
            let st = x[0]
            for (let i = 0; i < x.length - 1; i++) {
                x[i] = x[i + 1]
            }
            x[x.length - 1] = st
        },
        updataBarChart() {
            if (this.isHovered == true) {
                this.changeData(this.realData.cityList)
                this.changeData(this.realData.volumnList)
                let myChart = this.$echarts.init(this.$refs.firstMain)
                myChart.setOption({
                    xAxis: {
                        data: this.realData.cityList,
                    },
                    series: [
                        {
                            data: this.realData.volumnList,
                        },
                    ],
                })
            } else {
                clearInterval(this.timer)
            }
        },
        startDataupdataInterval() {
            const interval = 2000
            clearInterval(this.timer)
            setInterval(this.updataBarChart, interval)
        },
        startAction() {
            this.isHovered = false
        },
        cancelAction() {
            this.isHovered = true
        },
    },
    async mounted() {
        // 生命周期
        // 异步请求，使用await
        const res = await this.$http.get('myApp/screenData/')
        // 接收数据
        this.$set(this.realData, 'cityList', res.data.cityList)
        this.$set(this.realData, 'volumnList', res.data.volumnList)
        this.$set(this.realData, 'pieList', res.data.pieList)
        this.$set(this.realData, 'mapData', res.data.mapData)
        this.$set(this.realData, 'LineRowData', res.data.LineRowData)
        this.$set(this.realData, 'LineColData', res.data.LineColData)
        this.$set(this.config, 'data', res.data.circlieList)
        // console.log(res.data.circlieList)
    },
    async updated() {
        this.drawLeftTop()
        this.drawLeftBottom()
        this.drawCenterMap()
        this.startDataupdataInterval()
        this.drawRightTop()
    },
}
</script>

<style scoped>
/*设置整体*/
.layout {
    height: 100vh;
    width: 100%;
    background: url('../assets/imgs/bg03.jpg');
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header div {
    width: 50%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.header div span {
    color: steelblue;
    font-weight: bold;
    font-size: 23px;
    padding: 10px;
}

.content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.content .left {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
    margin-left: 30px;
}

.content .left div {
    flex-grow: 1;
    height: 300px;
    width: 380px;
    padding: 5px;
}

.content .right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 350px;
}

.content .right div {
    flex-grow: 1;
    height: 300px;
    width: 350px;
    padding: 5px;
}

.content .center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 80%;
    width: 600px;
}
</style>