vue中使用echart（图表）

vue安装echarts

npm i echarts -S

引入echarts：

import * as echarts from 'echarts'

Echarts官网：https://echarts.apache.org/zh/index.html

Echarts使用手册：https://echarts.apache.org/handbook/zh/get-started/

折线图、柱状图、饼图

<template>
    <div>
        <el-row>
            <el-col :span="12">
                <div id="main" style="width: 500px; height: 400px"></div>
            </el-col>
            
            <el-col :span="12">
                <div id="pie" style="width: 500px; height: 400px"></div>
            </el-col>
        </el-row>
    </div>
</template>

<script>
    import * as echarts from 'echarts'

    export default {
        name: "HOme.vue",
        data(){
            return{

            }
        },
        mounted() {//页面元素渲染之后在触发
            var chartDom = document.getElementById('main');
            var myChart = echarts.init(chartDom);
            var option = {
                xAxis: {
                    type: 'category',
                    data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
                },
                yAxis: {
                    type: 'value'
                },
                series: [
                    {
                        data: [150, 230, 224, 218, 135, 147, 260],
                        type: 'line'
                    },
                    {
                        data: [150, 230, 224, 218, 135, 147, 260],
                        type: 'bar'
                    },
                ]
            };
            myChart.setOption(option);


            //饼图
            var pieOption = {
                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)'
                            }
                        }
                    }
                ]
            };
            var pieDom = document.getElementById('pie');
            var pieChart = echarts.init(pieDom);
            pieChart.setOption(pieOption);
        }
    }
</script>

<style scoped>

</style>

绑定数据

<script>
    import * as echarts from 'echarts'

    export default {
    
    
        name: "HOme.vue",
        data(){
    
    
            return{
    
    

            }
        },
        mounted() {
    
    //页面元素渲染之后在触发
            var chartDom = document.getElementById('main');
            var myChart = echarts.init(chartDom);
            var option = {
    
    
                title: {
    
    
                    text: '各季度会员趋势图',
                    subtext: '趋势图',
                    left: 'center'
                },
                xAxis: {
    
    
                    type: 'category',
                    data: ["第一季度","第二季度","第三季度","第四季度"]
                },
                yAxis: {
    
    
                    type: 'value'
                },
                series: [
                    {
    
    
                        data: [],
                        type: 'line'
                    },
                    {
    
    
                        data: [],
                        type: 'bar'
                    },
                ]
            };
            this.request.get("/echarts/members").then(res =>{
    
    
                //天空
                //option.yAxis.data=res.x
                option.series[0].data=res.data
                option.series[1].data=res.data
                //数据准备完毕之后在
                myChart.setOption(option);

            })



            //饼图
            var pieOption = {
    
    
                title: {
    
    
                    text: '各季度会员趋势图',
                    subtext: '比例',
                    left: 'center'
                },
                tooltip: {
    
    
                    trigger: 'item'
                },
                legend: {
    
    
                    orient: 'vertical',
                    left: 'left'
                },
                series: [
                    {
    
    
                        //name: 'Access From',
                        type: 'pie',
                        radius: '50%',
                        label:{
    
                //饼图图形上的文本标签
                            normal:{
    
    
                                show:true,
                                position:'inner', //标签的位置
                                textStyle : {
    
    
                                    fontWeight : 300 ,
                                    fontSize : 14,    //文字的字体大小
                                    color: "#fff"
                                },
                                formatter:'{d}%'
                            }
                        },
                        //填空
                        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)'
                            }
                        }
                    }
                ]
            };
            var pieDom = document.getElementById('pie');
            var pieChart = echarts.init(pieDom);
            this.request.get("/echarts/members").then(res => {
    
    

                pieOption.series[0].data = [
                    {
    
    name: "第一季度", value: res.data[0]},
                    {
    
    name: "第二季度", value: res.data[1]},
                    {
    
    name: "第三季度", value: res.data[2]},
                    {
    
    name: "第四季度", value: res.data[3]},
                ]
                pieChart.setOption(pieOption)
            })
        }
    }
</script>

• 后端

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.date.Quarter;

import com.xiao.common.Result;
import com.xiao.entity.User;
import com.xiao.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/echarts")
public class EchartsController {
    
    
    @Autowired
    private IUserService userService;

    @GetMapping("/example")
    public Result get() {
    
    
        Map<String, Object> map = new HashMap<>();
        map.put("x", CollUtil.newArrayList("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"));
        map.put("y", CollUtil.newArrayList(150, 230, 224, 218, 135, 147, 260));
        return Result.success(map);
    }

    @GetMapping("/members")
    public Result members() {
    
    
        List<User> list = userService.list();
        int q1 = 0; // 第一季度
        int q2 = 0; // 第二季度
        int q3 = 0; // 第三季度
        int q4 = 0; // 第四季度
        for (User user : list) {
    
    
            Date createTime = user.getCreateTime();
            Quarter quarter = DateUtil.quarterEnum(createTime);
            switch (quarter) {
    
    
                case Q1: q1 += 1; break;
                case Q2: q2 += 1; break;
                case Q3: q3 += 1; break;
                case Q4: q4 += 1; break;
                default: break;
            }
        }
        return Result.success(CollUtil.newArrayList(q1, q2, q3, q4));
    }
}

头部标签设计

<template>
    <div>
        <el-row :gutter="10" style="margin-bottom: 40px">
            <el-col :span="6">
                <el-card style="color: #409EFF">
                    <div><i class="el-icon-user-solid" />用户总数</div>
                    <div style="padding: 10px 0; text-align: center; font-weight: bold">
                        100
                    </div>
                </el-card>
            </el-col>

            <el-col :span="6">
                <el-card style="color: #F56C6C">
                    <div><i class="el-icon-money" />销售总量</div>
                    <div style="padding: 10px 0; text-align: center; font-weight: bold">
                        ￥1000000
                    </div>
                </el-card>
            </el-col>

            <el-col :span="6">
                <el-card style="color: #E6A23C">
                    <div><i class="el-icon-bank-card" />收获总额</div>
                    <div style="padding: 10px 0; text-align: center; font-weight: bold">
                        100
                    </div>
                </el-card>
            </el-col>

            <el-col :span="6">
                <el-card style="color: #67C23A">
                    <div><i class="el-icon-s-shop" />门店总数</div>
                    <div style="padding: 10px 0; text-align: center; font-weight: bold">
                        100
                    </div>
                </el-card>
            </el-col>

        </el-row>



        <el-row>
            <el-col :span="12">
                <div id="main" style="width: 500px; height: 400px"></div>
            </el-col>
            <el-col :span="12">
                <div id="pie" style="width: 500px; height: 400px"></div>
            </el-col>
        </el-row>
    </div>

</template>

图表样式

//页面元素渲染之后在触发
            var chartDom = document.getElementById('main');
            var myChart = echarts.init(chartDom);
            var option = {
    
    
                title: {
    
    
                    text: '各季度会员趋势图',
                    subtext: '趋势图',
                    left: 'center'
                },
                tooltip: {
    
    
                    trigger: 'item'
                },
                legend: {
    
    
                    orient: 'vertical',
                    left: 'left'
                },
                xAxis: {
    
    
                    type: 'category',
                    data: ["第一季度","第二季度","第三季度","第四季度"]
                },
                yAxis: {
    
    
                    type: 'value'
                },
                series: [
                    {
    
    
                        name: "星巴克",
                        data: [],
                        type: 'bar'
                    },
                    {
    
    
                        name: "星巴克",
                        data: [],
                        type: 'line'
                    },

                    {
    
    
                        name: "瑞幸",
                        data: [],
                        type: 'bar'
                    },
                    {
    
    
                        name: "瑞幸",
                        data: [],
                        type: 'line'
                    },
                ]
            };
            this.request.get("/echarts/members").then(res =>{
    
    
                //天空
                //option.yAxis.data=res.x
                option.series[0].data=res.data
                option.series[1].data=res.data
                option.series[2].data=[4,3,2,3]
                option.series[3].data=[4,3,2,3]
                //数据准备完毕之后在
                myChart.setOption(option);

            })