首先需要项目中安装events 包: npm install events --save 在src下新建一个util目录里面建一个events.js import { EventEmitter } from 'events'; export default new EventEmitter(); list1.jsx import React, { Component } from 'react'; import emitter from '../util/events'; class List extends Component { constructor(props) { super(props); this.state = { message: 'List1', }; } componentDidMount() { // 组件装载完成以后声明一个自定义事件 this.eventEmitter = emitter.addListener('changeMessage', (message) => { this.setState({ message, }); }); } componentWillUnmount() { emitter.removeListener(this.eventEmitter); } render() { return ( <div> {this.state.message} </div> ); } } export default List; List2.jsx import React, { Component } from 'react'; import emitter from '../util/events'; class List2 extends Component { handleClick = (message) => { emitter.emit('changeMessage', message); }; render() { return ( <div> <button onClick={this.handleClick.bind(this, 'List2')}>点击我改变List1组件中显示信息</button> </div> ); } } export default List2; APP.jsx import React, { Component } from 'react'; import List1 from './components/List1'; import List2 from './components/List2'; export default class App extends Component { render() { return ( <div> <List1 /> <List2 /> </div> ); } }
react 兄弟组件如何调用对方的方法 https://segmentfault.com/a/1190000016764713