react crash course 2024(7) react router dom

安装

npm i react-router-dom

引入

import {Route,createBrowserRouter,createRoutesFromElements,RouterProvider} from 'react-router-dom'

在app.jsx

const router = createBrowserRouter(
  createRoutesFromElements(<Route index element = {<h1>My App</h1>}/>)
)

const App = () => {
  return <RouterProvider router={router}/>
}

使用object写路由

const router = createBrowserRouter([
  {
    path:"/",
    element:(
      <h2>hello rainbow</h2>
    )
  },{
    path:"about",
    element:<h2>little puppy</h2>
  }
])

或直接使用<Route/>组件写路由

const router = createBrowserRouter(
  createRoutesFromElements(
  <Route path='/' element={<h2>hello rainbow</h2>}></Route>
))

路由嵌套

const router = createBrowserRouter(
  createRoutesFromElements(
  <Route path='/' element={<MainLayout/>}>
    <Route   path="contact" element = {<h5 >some peopel just bad</h5>}/>
  </Route>
))

别忘了放子路由出口

在父 route 元素中使用outlet来渲染其子 route 元素。这允许在渲染子路由时显示嵌套 UI。