电商后台管理系统商品报表功能——ECharts实现服务器返回的折线图

Bertha 。 2021-07-24 18:04 367阅读 0赞

# 一 点睛 #

1 安装 echarts 运行依赖

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

# 二 代码 #

1 新建 Report.vue

<template>
        <div>
            
            <el-breadcrumb separator-class="el-icon-arrow-right">
                <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
                <el-breadcrumb-item>数据统计</el-breadcrumb-item>
                <el-breadcrumb-item>数据报表</el-breadcrumb-item>
            </el-breadcrumb>
    
            
            <el-card>
                
                <div id="main" style="width: 750px;height:400px;"></div>
            </el-card>
        </div>
    </template>
    
    <script>
        // 1 导入echarts
        import echarts from 'echarts'
        import _ from 'lodash'
    
        export default {
            name: "Report",
            data() {
                return {
                    // 需要合并的数据
                    options: {
                        title: {
                            text: '用户来源'
                        },
                        tooltip: {
                            trigger: 'axis',
                            axisPointer: {
                                type: 'cross',
                                label: {
                                    backgroundColor: '#E9EEF3'
                                }
                            }
                        },
                        grid: {
                            left: '3%',
                            right: '4%',
                            bottom: '3%',
                            containLabel: true
                        },
                        xAxis: [
                            {
                                boundaryGap: false
                            }
                        ],
                        yAxis: [
                            {
                                type: 'value'
                            }
                        ]
                    }
                }
            },
            created() {
            },
            // 此时，页面上的元素，已经被渲染完毕了
            async mounted() {
                // 3 基于准备好的dom，初始化echarts实例
                var myChart = echarts.init(document.getElementById('main'));
                // 4 准备数据和配置项
                const {data: res} = await this.$http.get('reports/type/1')
                if (res.meta.status !== 200) return this.$message.error('获取折线图数据失败！')
                const result = _.merge(res.data, this.options)
                // 5 展示数据
                myChart.setOption(result);
            },
            methods: {}
        }
    </script>
    
    <style scoped>
    
    </style>

2 修改路由 index.js

import Vue from 'vue'
    import VueRouter from 'vue-router'
    // 导入登录组件
    import Login from "../components/Login";
    // 导入Home 组件
    import Home from "../components/Home";
    // 导入Welcome 组件
    import Welcome from "../components/Welcome";
    // 导入 Users 组件
    import Users from "../components/user/Users";
    // 导入权限列表 组件
    import Rights from "../components/power/Rights";
    // 导入角色列表 组件
    import Roles from "../components/power/Roles";
    // 导入商品分类 组件
    import Cate from "../components/goods/Cate";
    // 导入商品分类参数 组件
    import Params from "../components/goods/Params";
    // 导入商品列表组件
    import GoodsList from "../components/goods/List";
    // 导入增加商品名称组件
    import Add from "../components/goods/Add";
    // 导入订单组件
    import Order from "../components/order/Order";
    // 导入报表功能
    import Report from "../components/report/Report";
    import {renderThumbStyle} from "element-ui/packages/scrollbar/src/util";
    
    
    Vue.use(VueRouter)
    
    const routes = [
        // 路由重定向,当访问/,就会重定向到/login
        {
            path: '/',
            redirect: '/login'
        },
        // 定义登录路由规则
        {
            path: '/login',
            component: Login
        },
        // 定义Home的路由规则
        {
            path: '/home',
            component: Home,
            redirect: '/welcome',
            children: [
                {
                    path: '/welcome',
                    component: Welcome
                },
                /* 用户管理 */
                {
                    path: '/users',
                    component: Users
                },
                /* 权限管理 */
                {
                    path: '/rights',
                    component: Rights
                },
                /* 角色管理 */
                {
                    path: '/roles',
                    component: Roles
                },
                /* 商品分类 */
                {
                    path: '/categories',
                    component: Cate
                },
                /* 商品分类参数 */
                {
                    path: '/params',
                    component: Params
                },
                /* 商品列表 */
                {
                    path: '/goods',
                    component: GoodsList
                },
                /* 增加商品 */
                {
                    path: '/goods/add',
                    component: Add
                },
                /* 订单 */
                {
                    path: '/orders',
                    component: Order
                },
                /* 报表 */
                {
                    path: '/reports',
                    component: Report
                }
            ]
        }
    ]
    
    const router = new VueRouter({
        routes
    })
    // 挂载路由导航守卫
    // to 将要访问的路径
    // from 代表从哪个路径跳转而来
    // next 是个函数，表示放行 next() 放行  next('/login') 强制跳转
    router.beforeEach((to, from, next) => {
        // 如果用户访问的登录页，直接放行
        if (to.path === '/login') return next();
        // 从 sessionStorage 中获取到保存的 token 值
        const tokenstr = window.sessionStorage.getItem('token')
        // 没有 token，强制跳转到登录页
        if (!tokenstr) return next('/login')
        next()
    })
    
    export default router

# 三 效果 #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/ac4cb9cda69b48b491d07bd51a60e2a3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20210724/7e34e675948d4aff90e7fb04aac9ee0e.png