React的路由据笔者所知有react-router，react-router-dom，笔者认为react-router-dom要比react-router好用很多

一、装包

npm install react-router-dom --save

首先看一下最终的目录结构

目录结构

二、在src目录下新建一个Router.js文件用来配置路由

import Page1 from './pages/Page1'
import Page2 from './pages/Page2'
import React, { Component } from 'react'
import { Route, Switch, withRouter, BrowserRouter } from 'react-router-dom'
class Router extends Component {
  constructor(props) {
    super(props)
    this.state = {
    }
  }

  render() {
    return (
      <BrowserRouter>
        <Switch>
          <Route exact path="/" component={withRouter(Page1)} />
          <Route exact path="/page2" component={withRouter(Page2)} />
        </Switch>
      </BrowserRouter>
    )
  }
}
export default Router

三、修改index.js文件

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
// import App from './App';
import Router from './Router'
import * as serviceWorker from './serviceWorker';

ReactDOM.render(<Router />, document.getElementById('root'));

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
serviceWorker.unregister();

四、在页面们中的使用

下边的那种写法都可以，前两种传参的话会暴露在地址栏，第三种比较优雅，不会暴露在地址栏，但是浏览器刷新后参数就没了，需要配合存储使用。

this.props.history.push('/page2')
this.props.history.push({pathname:'/page2'}) 
this.props.history.push({pathname:"/page2",state : { id : '111' }});

五、路由传参

this.props.history.push('/page2/' + 666 + '')
this.props.history.push({pathname:'/'}) 

上边的写法传参就是要在后边拼接
不推荐用上边的写法传参，改变URL，可能导致路由失败

this.props.history.push({pathname:"/page2",state : { id : '111' }});

获取数据：this.props.location.state.id

六、效果展示及代码

页面一page1

import React, { Component } from 'react'

export class Page1 extends Component {
  constructor(props) {
    super(props)
    this.state = {
    };
  };
  render() {
    return (
      <div style={{
        width: '100%',
        height: window.innerHeight,
        background: '#001D37',
        display: 'flex',
        justifyContent: 'center',
        alignItems: 'center',
      }}>
        <div
          onClick={() => {
            // this.props.history.push('/page2/' + 666 + '')
            this.props.history.push({pathname:'/page2'}) 
            // this.props.history.push({pathname:"/page2",state : { id : '111' }});
          }}
          style={{
            width: '500px',
            height: '200px',
            background: '#fff',
            padding: '30px',
            borderRadius: '10px',
            lineHeight: '200px',
            textAlign: 'center',
          }}>
          我是页面一一一一一一一
          点我可以去页面二
        </div>
      </div>
    )
  }
}

export default Page1

页面二page2

import React, { Component } from 'react'

export class Page2 extends Component {
  constructor(props) {
    super(props)
    this.state = {
    };
  };
  render() {
    // console.log(this.props.location.state.id)
    console.log(this.props.location.params)
    return (
      <div style={{
        width: '100%',
        height: window.innerHeight,
        background: '#001D37',
        display: 'flex',
        justifyContent: 'center',
        alignItems: 'center',
      }}>
        <div
         onClick={()=>{
          this.props.history.push('/')
          // this.props.history.push({pathname:'/'}) 
          // this.props.history.push({pathname:"/",state : { id : '222' }});
        }}
        style={{
          width: '500px',
          height: '200px',
          background: '#ff0',
          padding: '30px',
          borderRadius: '10px',
          textAlign:'center',
          lineHeight:'200px',
        }}>
          我是页面二二二二二二二二
          点我可以去页面一
        </div>
      </div>
    )
  }
}

export default Page2

欲知知完整代码如何请见GitHub

https://github.com/jade-kylin/react-router-dom-study.git

git clone https://github.com/jade-kylin/react-router-dom-study.git

执行即可获取到完整项目文件