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src/components/EchartBox/index.vue

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+<template>
+  <div ref="echartBox" class="echarts"></div>
+</template>
+
+<script setup lang="ts">
+import china from '@/assets/china.json';
+import cq from '@/assets/cq.json';
+import { ref, onMounted, watchEffect, onBeforeUnmount } from 'vue';
+import * as echarts from 'echarts/core';
+import {
+  BarChart, // 柱状图
+  // 系列类型的定义后缀都为 SeriesOption
+  BarSeriesOption,
+  LineChart, // 折线图
+  LineSeriesOption,
+  PieChart, // 饼图
+  PieSeriesOption,
+  PictorialBarChart,
+  MapChart,
+  ScatterChart,
+  EffectScatterChart,
+  LinesChart
+} from 'echarts/charts';
+import {
+  // 组件类型的定义后缀都为 ComponentOption
+  // 标题
+  TitleComponent,
+  TitleComponentOption,
+  // 提示框
+  TooltipComponent,
+  TooltipComponentOption,
+  // 直角坐标系
+  GridComponent,
+  GridComponentOption,
+  // 图例
+  LegendComponent,
+  LegendComponentOption,
+  // 数据集组件
+  DatasetComponent,
+  DatasetComponentOption,
+  // 内置数据转换器组件 (filter, sort)
+  TransformComponent,
+  DataZoomComponent,
+  DataZoomComponentOption,
+  // 极坐标
+  PolarComponent,
+  PolarComponentOption,
+  MarkLineComponentOption,
+  MarkLineComponent,
+  // MarkPoint
+  MarkPointComponent,
+  MarkPointComponentOption,
+  // VisualMap
+  VisualMapComponent,
+  VisualMapComponentOption,
+  // GeoComponent
+  GeoComponent,
+  GeoComponentOption
+} from 'echarts/components';
+import { LabelLayout, UniversalTransition } from 'echarts/features';
+import { CanvasRenderer } from 'echarts/renderers';
+import 'echarts-gl';
+
+// 通过 ComposeOption 来组合出一个只有必须组件和图表的 Option 类型
+type ECOption = echarts.ComposeOption<
+  | BarSeriesOption
+  | LineSeriesOption
+  | PieSeriesOption
+  | TitleComponentOption
+  | TooltipComponentOption
+  | GridComponentOption
+  | DatasetComponentOption
+  | LegendComponentOption
+  | DataZoomComponentOption
+  | PolarComponentOption
+  | MarkLineComponentOption
+  | MarkPointComponentOption
+  | VisualMapComponentOption
+  | GeoComponentOption
+>;
+
+// 注册必须的组件
+echarts.use([
+  TitleComponent,
+  TooltipComponent,
+  GridComponent,
+  DatasetComponent,
+  TransformComponent,
+  LegendComponent,
+  DataZoomComponent,
+  PolarComponent,
+  MarkLineComponent,
+  MarkPointComponent,
+  LabelLayout,
+  UniversalTransition,
+  CanvasRenderer,
+  BarChart,
+  LineChart,
+  PieChart,
+  VisualMapComponent,
+  PictorialBarChart,
+  GeoComponent,
+  MapChart,
+  ScatterChart,
+  EffectScatterChart,
+  LinesChart
+]);
+const props = defineProps({
+  option: {
+    type: Object,
+    default: () => {
+      return null;
+    }
+  }
+});
+const emit = defineEmits(['echartsEvent']);
+const echartBox = ref(null);
+let chart!: echarts.ECharts;
+
+const setChart = (option: ECOption): void => {
+  if (!props.option || !echartBox.value) {
+    return;
+  }
+  chart.resize();
+  chart.setOption(option);
+};
+
+const resetChart = (): void => {
+  const option = chart.getOption();
+  if (!option || !echartBox.value) {
+    return;
+  }
+  chart.resize();
+};
+
+onMounted(() => {
+  (echarts as any).registerMap('china', { geoJSON: china });
+  (echarts as any).registerMap('cq', { geoJSON: cq });
+  chart = echarts.init(echartBox.value as any);
+
+  emit('echartsEvent', chart);
+  setChart(props.option);
+  // 界面拉伸后重设
+  window.addEventListener('resize', () => {
+    resetChart();
+  });
+});
+
+watchEffect(() => {
+  if (chart) {
+    chart.clear();
+  }
+  setChart(props.option);
+});
+
+onBeforeUnmount(() => {
+  if (chart) {
+    chart.dispose();
+  }
+});
+</script>
+
+<style scoped lang="scss">
+.echarts {
+  width: 100%;
+  height: 100%;
+  pointer-events: all;
+}
+</style>