1 - 单级路由
2 - 嵌套路由（about路径进行嵌套）
React Router v6使用路由嵌套和重定向
1 - 单级路由<NavLink to="/home">Home</NavLink>
<NavLink to="/about">about</NavLink>
<Routes>
<Route path='/home' element={<Home/>}/>
<Route path='/about' element={<About/>}/>
</Routes>
2 - 嵌套路由（about路径进行嵌套）
一级路由
<NavLink to="/home">Home</NavLink>
<NavLink to="/about">about</NavLink>
<Routes>
<Route path='/home' element={<Home/>}/>
<!--要嵌套的路由这里一定要写/* 为了告诉这个路由后续会跟着其它路径
NavLink 千万不要写和Route一样的/about/*
否则/about 这个按钮路由css中的active会消失
-->
<Route path='/about/*' element={<About/>}/>
</Routes>
二级路由
跳转按钮一般最好写完整，否则看代码看不清楚
<NavLink to="/about/news">新闻</NavLink>
<NavLink to="/about/message">消息</NavLink >
<Routes>
<Route path='news' element={<News/>}/>
<Route path='message' element={<Message/>}/>
</Routes>
跳转切换的path要写二级路由的路径
React Router v6使用路由嵌套和重定向v6版本与v5版本差异较大，以下为V6使用路由嵌套及路由重定向方法,子路由路径不用加"/"，v6中会自动拼接
App.jsx
import React, { Component } from 'react'
import { Route,Routes,Navigate} from 'react-router-dom'
import About from './pages/About'
import Home from './pages/Home'
import Header from './components/Header'
import MyNavLink from './components/MyNavLink'
export default class App extends Component {
render() {
return (
<div>
<div className='row'>
<Header/>
</div>
<div className='row'>
<div className='col-xs-2 col-xs-offset-2'>
<div className='list-group'>
{/* 链接路由 */}
<MyNavLink to="/about" >About</MyNavLink>
<MyNavLink to="/home" >Home</MyNavLink>
</div>
</div>
</div>
<div className='col-xs-6'>
<div className='panel'>
<div className='panel-body'>
{/* 注册路由 */}
<Routes>
{/* 首次进入页面是重定向到/about路径 */}
<Route path="*" element={<Navigate to="/about"/>}></Route>
<Route path="/about" element={<About/>}></Route>
<Route path="/home/*" element={ <Home/>}>
</Route>
</Routes>
</div>
</div>
</div>
</div>
)
}
}
Home/index.jsx
import React, { Component } from 'react'
import MyNavLink from '../../components/MyNavLink'
import {Route,Routes,Navigate} from 'react-router-dom'
import News from './News'
import Messages from './Messages'
export default class Home extends Component {
render() {
return (
<div>
<h3>Home内容</h3>
<div className='list-group'>
<MyNavLink to="news" >News</MyNavLink>
<MyNavLink to="messages" >Messages</MyNavLink>
</div>
<div>
<Routes>
<Route path="*" element={<Navigate to="messages"/>}></Route>
<Route path="news" element={<News/>}></Route>
<Route path="messages" element={<Messages/>}></Route>
</Routes>
</div>
</div>
)
}
}
Home/Messages/index.jsx
import React, { Component } from 'react'
export default class Messages extends Component {
render() {
return (
<ul>
<li>message1</li>
<li>message2</li>
<li>message3</li>
<li>message4</li>
</ul>
)
}
}
MyNavLink/index.jsx
import React, { Component } from 'react'
import { NavLink } from 'react-router-dom'
export default class MyVavLink extends Component {
render() {
return (
<NavLink className="list-group-item" {...this.props}/>
)
}
}
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