Vue+Echart bar chart realizes epidemic data statistics

npm install echarts --save

import Vue from 'vue'
import echarts from 'echarts' //This needs to be noted that there may be an error, you can use the following method Vue.prototype.$echarts = echarts

import Vue from 'vue'
import * as echarts from 'echarts' //The difference is here Vue.prototype.$echarts = echarts

 plugins: ['~plugins/echarts']
 //I only wrote to add this, it does not mean that there is only this here//You can also use the form of '@/plugins/echarts', they are almost the same

<template>
  <div id="echarts">
    <div id="myChart"></div> 
  </div>
</template>
<script type="text/javascript">
export default {
  name: "Echarts",
  data() {
    return {};
  },
  methods: {
      echartsInit() { //Define a method to create a chart let myChart = this.$echarts.init(document.getElementById("myChart"));
      
      myChart.setOption({
        title:
          text: "echarts' bar chart to realize epidemic statistics",
          textAlign: "auto",
          left: 'center'
        },
        tooltip: {},
        // Province (horizontal axis)
        xAxis:
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
          //data: this.areaName, //This is the final data, indicating that you can start the test without using this type: "category",
          axisLabel: {
            rotate: -45, // Rotate 30 degrees, otherwise the horizontal axis will not be fully displayed show: true, // This line of code controls whether the text on the x-axis is displayed},
        },
        yAxis: {},
        // Confirmed number series: [
          {
            name: "Total number of confirmed cases",
            type: "bar",
            //data: this.areaConfirm, //This is the final data, indicating that you can start the test without this data: [120, 200, 150, 80, 70, 110, 130],
          },
        ],
      });
    },
  }
  //mounted is called after the template is rendered into HTML, usually after the initialization page is completed // and then some necessary operations are performed on the HTML DOM node mounted() {
  	this.echartsInit();
  },
  }
</script>
<style scoped>
	#myChart {
	  width: 100%;
	  height: 300px;
	  margin-left: auto;
	  margin-right: auto;
	}
</style>

npm install axios @nuxtjs/axios @nuxtjs/proxy

module.exports = {
//I show the parts to be added, not all modules: ["@nuxtjs/axios"],

  axios:
    proxy: true
  },

  proxy: {
    '/api/': {
    target: 'https://view.inews.qq.com', //This website is open source and can request data pathRewrite: {
    '^/api/': '/',
    changeOrigin: true
    }
   }
  },
}

    getData() {
      this.$axios.get(`/api/g2/getOnsInfo?name=disease_h5`).then(({ data }) => {
        //console.log(JSON.parse(data.data.replace('\\"', "'")));
        this.area = JSON.parse(
          data.data.replace('\\"', "'")
        ).areaTree[0].children;
        // Area name this.areaName = this.area.map((o) => {
          return o.name;
        });
        //Total number of confirmed cases this.areaConfirm = this.area.map((o) => {
          return o.total.confirm;
        });
        console.log(this.areaConfirm);
        // Current number of confirmed cases hh It seems that I didn't use it in the end. If you need it, you can refer to it this.areaNowConfirm = this.area.map((o) => {
          return o.total.nowConfirm;
        });
        this.echartsInit();
      });
    },

<template>
  <div id="echarts">
    <div id="myChart"></div>
  </div>
</template>
<script type="text/javascript">
export default {
  name: "Echarts",
  data() {
    return {
      area: [],
      areaName: [],
      areaConfirm: [],
      areaNowConfirm: [],
    };
  },
  
  methods: {
    getData() {
      this.$axios.get(`/api/g2/getOnsInfo?name=disease_h5`).then(({ data }) => {
        console.log(JSON.parse(data.data.replace('\\"', "'")));
        this.area = JSON.parse(
          data.data.replace('\\"', "'")
        ).areaTree[0].children;
        // Area name this.areaName = this.area.map((o) => {
          return o.name;
        });
        //Total number of confirmed cases this.areaConfirm = this.area.map((o) => {
          return o.total.confirm;
        });
        console.log(this.areaConfirm);
        // Current confirmed cases this.areaNowConfirm = this.area.map((o) => {
          return o.total.nowConfirm;
        });
        this.echartsInit();
      });
    },
    echartsInit() {
      let myChart = this.$echarts.init(document.getElementById("myChart"));
      myChart.setOption({
        title:
          text: "echarts' bar chart to realize epidemic statistics",
          textAlign: "auto",
          left: 'center'
        },
        tooltip: {},
        // Province xAxis: {
          data: this.areaName,
          type: "category",
          axisLabel: {
            rotate: -45, // Rotate 30 degrees show: true, // This line of code controls whether the text on the x-axis is displayed},
        },
        yAxis: {},
        // Confirmed number series: [
          {
            name: "Total number of confirmed cases",
            type: "bar",
            data: this.areaConfirm,
          },
        ],
      });
    },
  },
  mounted() {
    this.getData();
    this.echartsInit();
  },
};
</script>
<style scoped>
#myChart {
  width: 100%;
  height: 300px;
  margin-left: auto;
  margin-right: auto;
}
</style>