在 react 中使用 Echarts 图表

npm install echarts --save

import React from "react";

// 第二步引入 echarts
import * as echarts from "echarts";

class Reports extends React.Component {
  componentDidMount() {
    // 触发initCharts
    this.initCharts();
  }
  // 第三步初始化
  initCharts = () => {
    let myChart = echarts.init(document.getElementById("myChart"));
    let option = {
      title: {
        text: "",
      },
      tooltip: {
        trigger: "axis",
        axisPointer: {
          type: "cross",
          label: {
            backgroundColor: "#6a7985",
          },
        },
      },
      legend: {
        data: ["邮件营销", "联盟广告", "视频广告", "直接访问", "搜索引擎"],
      },
      toolbox: {
        feature: {
          saveAsImage: {},
        },
      },
      grid: {
        left: "3%",
        right: "4%",
        bottom: "3%",
        containLabel: true,
      },
      xAxis: [
        {
          type: "category",
          boundaryGap: false,
          data: ["周一", "周二", "周三", "周四", "周五", "周六", "周日"],
        },
      ],
      yAxis: [
        {
          type: "value",
        },
      ],
      series: [
        {
          name: "邮件营销",
          type: "line",
          stack: "总量",
          areaStyle: {},
          emphasis: {
            focus: "series",
          },
          data: [120, 132, 101, 134, 90, 230, 210],
        },
        {
          name: "联盟广告",
          type: "line",
          stack: "总量",
          areaStyle: {},
          emphasis: {
            focus: "series",
          },
          data: [220, 182, 191, 234, 290, 330, 310],
        },
        {
          name: "视频广告",
          type: "line",
          stack: "总量",
          areaStyle: {},
          emphasis: {
            focus: "series",
          },
          data: [150, 232, 201, 154, 190, 330, 410],
        },
        {
          name: "直接访问",
          type: "line",
          stack: "总量",
          areaStyle: {},
          emphasis: {
            focus: "series",
          },
          data: [320, 332, 301, 334, 390, 330, 320],
        },
        {
          name: "搜索引擎",
          type: "line",
          stack: "总量",
          label: {
            show: true,
            position: "top",
          },
          areaStyle: {},
          emphasis: {
            focus: "series",
          },
          data: [820, 932, 901, 934, 1290, 1330, 1320],
        },
      ],
    };

    myChart.setOption(option);
    window.addEventListener("resize", function () {
      myChart.resize();
    });
  };

  render() {
    return <div id="myChart" style={{ width: "400px", height: "400px" }}></div>;
  }
}

export default Reports;