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React 19 通用 ECharts 组件

ai 2025/8/12 16:02:53

好，我给你做一个 React 19 通用 ECharts 组件，
支持饼图 / 折线图 / 柱状图，colors 可选，不传也能显示，防止重复渲染。

1. `src/services/echarts.ts`

注册所有需要的图表类型和组件（不用再分开写折线/饼图/柱状图）

// src/services/echarts.ts
import * as echarts from 'echarts/core';
import {TitleComponent,TooltipComponent,GridComponent,LegendComponent,ToolboxComponent
} from 'echarts/components';
import { LineChart, PieChart, BarChart } from 'echarts/charts';
import { CanvasRenderer } from 'echarts/renderers';// 按需注册组件
echarts.use([TitleComponent,TooltipComponent,GridComponent,LegendComponent,ToolboxComponent,LineChart,PieChart,BarChart,CanvasRenderer
]);export default echarts;

2. `src/components/EChartsBase.tsx`

一个通用的 React 19 ECharts 组件

// src/components/EChartsBase.tsx
import React, { useRef, useEffect } from 'react';
import echarts from '@/services/echarts';interface EChartsBaseProps {option: echarts.EChartsOption;width?: string;height?: string;
}const EChartsBase: React.FC<EChartsBaseProps> = ({option,width = '100%',height = '400px'
}) => {const chartRef = useRef<HTMLDivElement | null>(null);const chartInstance = useRef<echarts.EChartsType | null>(null);useEffect(() => {if (chartRef.current) {// 如果已有实例，先销毁，防止 React 19 重复渲染if (chartInstance.current) {chartInstance.current.dispose();}chartInstance.current = echarts.init(chartRef.current);chartInstance.current.setOption(option);}// 监听窗口大小变化const handleResize = () => {chartInstance.current?.resize();};window.addEventListener('resize', handleResize);return () => {chartInstance.current?.dispose();window.removeEventListener('resize', handleResize);};}, [option]);return <div ref={chartRef} style={{ width, height }} />;
};export default EChartsBase;

3. 使用示例（不传 `colors` 也能显示）

// src/pages/DemoCharts.tsx
import React from 'react';
import EChartsBase from '@/components/EChartsBase';export default function DemoCharts() {const pieOption = {title: { text: '示例饼图', left: 'center' },tooltip: { trigger: 'item' },legend: { bottom: 0 },series: [{name: '访问来源',type: 'pie',radius: '50%',data: [{ value: 1048, name: '搜索引擎' },{ value: 735, name: '直接访问' },{ value: 580, name: '邮件营销' }]}]};const lineOption = {title: { text: '示例折线图' },tooltip: { trigger: 'axis' },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', smooth: true }]};const barOption = {title: { text: '示例柱状图' },tooltip: {},xAxis: { type: 'category', data: ['苹果', '香蕉', '橘子', '梨子'] },yAxis: { type: 'value' },series: [{ data: [5, 20, 36, 10], type: 'bar' }]};return (<div style={{ padding: 20 }}><EChartsBase option={pieOption} height="300px" /><EChartsBase option={lineOption} height="300px" /><EChartsBase option={barOption} height="300px" /></div>);
}

✅ 特点：