提问人:datoml 提问时间:1/5/2017 最后编辑:ggorlendatoml 更新时间:3/1/2023 访问量:383549
使用 react 路由器 v4 / v5 的嵌套路由
Nested routes with react router v4 / v5
问:
我目前正在使用 react router v4 为嵌套路由而苦苦挣扎。
最接近的例子是 React-Router v4 文档中的路由配置。
我想将我的应用程序分成 2 个不同的部分。
前端和管理区域。
我在想这样的事情:
<Match pattern="/" component={Frontpage}>
<Match pattern="/home" component={HomePage} />
<Match pattern="/about" component={AboutPage} />
</Match>
<Match pattern="/admin" component={Backend}>
<Match pattern="/home" component={Dashboard} />
<Match pattern="/users" component={UserPage} />
</Match>
<Miss component={NotFoundPage} />
前端的布局和样式与管理区域不同。因此,在首页中,回家的路线,大约和所以应该是子路线。
/home
应呈现到 Frontpage 组件中,并且应该在 Backend 组件中呈现。/admin/home
我尝试了一些其他变化,但我总是以没有击中或./home
/admin/home
答:
只是想提一下,自从这个问题发布/发布以来,react-router v4 发生了根本性的变化。
没有组件了!是确保只呈现第一个匹配项。 井。。重定向到另一条路由。使用或省略以插入或排除部分匹配。<Match>
<Switch>
<Redirect>
exact
请参阅文档。他们很棒。https://reacttraining.com/react-router/
这里有一个例子,我希望可以用来回答你的问题。
<Router>
<div>
<Redirect exact from='/' to='/front'/>
<Route path="/" render={() => {
return (
<div>
<h2>Home menu</h2>
<Link to="/front">front</Link>
<Link to="/back">back</Link>
</div>
);
}} />
<Route path="/front" render={() => {
return (
<div>
<h2>front menu</h2>
<Link to="/front/help">help</Link>
<Link to="/front/about">about</Link>
</div>
);
}} />
<Route exact path="/front/help" render={() => {
return <h2>front help</h2>;
}} />
<Route exact path="/front/about" render={() => {
return <h2>front about</h2>;
}} />
<Route path="/back" render={() => {
return (
<div>
<h2>back menu</h2>
<Link to="/back/help">help</Link>
<Link to="/back/about">about</Link>
</div>
);
}} />
<Route exact path="/back/help" render={() => {
return <h2>back help</h2>;
}} />
<Route exact path="/back/about" render={() => {
return <h2>back about</h2>;
}} />
</div>
</Router>
希望它有所帮助,让我知道。如果这个例子不能很好地回答你的问题,请告诉我,我会看看我是否可以修改它。
评论
exact
Redirect
<Route exact path="/" render={() => <Redirect to="/path" />} />
在 react-router-v4 中,您不会嵌套 <Routes />
。相反,将它们放在另一个 <Component />
中。
例如
<Route path='/topics' component={Topics}>
<Route path='/topics/:topicId' component={Topic} />
</Route>
应该成为
<Route path='/topics' component={Topics} />
跟
const Topics = ({ match }) => (
<div>
<h2>Topics</h2>
<Link to={`${match.url}/exampleTopicId`}>
Example topic
</Link>
<Route path={`${match.path}/:topicId`} component={Topic}/>
</div>
)
这是一个直接来自 react-router 文档的基本示例。
评论
to="exampleTopicId"
${match.url}
像这样的事情。
import React from 'react';
import {
BrowserRouter as Router, Route, NavLink, Switch, Link
} from 'react-router-dom';
import '../assets/styles/App.css';
const Home = () =>
<NormalNavLinks>
<h1>HOME</h1>
</NormalNavLinks>;
const About = () =>
<NormalNavLinks>
<h1>About</h1>
</NormalNavLinks>;
const Help = () =>
<NormalNavLinks>
<h1>Help</h1>
</NormalNavLinks>;
const AdminHome = () =>
<AdminNavLinks>
<h1>root</h1>
</AdminNavLinks>;
const AdminAbout = () =>
<AdminNavLinks>
<h1>Admin about</h1>
</AdminNavLinks>;
const AdminHelp = () =>
<AdminNavLinks>
<h1>Admin Help</h1>
</AdminNavLinks>;
const AdminNavLinks = (props) => (
<div>
<h2>Admin Menu</h2>
<NavLink exact to="/admin">Admin Home</NavLink>
<NavLink to="/admin/help">Admin Help</NavLink>
<NavLink to="/admin/about">Admin About</NavLink>
<Link to="/">Home</Link>
{props.children}
</div>
);
const NormalNavLinks = (props) => (
<div>
<h2>Normal Menu</h2>
<NavLink exact to="/">Home</NavLink>
<NavLink to="/help">Help</NavLink>
<NavLink to="/about">About</NavLink>
<Link to="/admin">Admin</Link>
{props.children}
</div>
);
const App = () => (
<Router>
<div>
<Switch>
<Route exact path="/" component={Home}/>
<Route path="/help" component={Help}/>
<Route path="/about" component={About}/>
<Route exact path="/admin" component={AdminHome}/>
<Route path="/admin/help" component={AdminHelp}/>
<Route path="/admin/about" component={AdminAbout}/>
</Switch>
</div>
</Router>
);
export default App;
您可以尝试类似 路由 .js
import React, { Component } from 'react'
import { BrowserRouter as Router, Route } from 'react-router-dom';
import FrontPage from './FrontPage';
import Dashboard from './Dashboard';
import AboutPage from './AboutPage';
import Backend from './Backend';
import Homepage from './Homepage';
import UserPage from './UserPage';
class Routes extends Component {
render() {
return (
<div>
<Route exact path="/" component={FrontPage} />
<Route exact path="/home" component={Homepage} />
<Route exact path="/about" component={AboutPage} />
<Route exact path="/admin" component={Backend} />
<Route exact path="/admin/home" component={Dashboard} />
<Route exact path="/users" component={UserPage} />
</div>
)
}
}
export default Routes
应用.js
import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import { BrowserRouter as Router, Route } from 'react-router-dom'
import Routes from './Routes';
class App extends Component {
render() {
return (
<div className="App">
<Router>
<Routes/>
</Router>
</div>
);
}
}
export default App;
我认为你也可以从这里实现同样的目标。
评论
react-router v6
2022 年更新 - v6 具有 Just Work™ 的嵌套组件。Route
这个问题是关于 v4/v5 的,但现在最好的答案是如果可以的话,就使用 v6!
请参阅此博客文章中的示例代码。但是,如果您还不能升级...
react-router v4 & v5
的确,为了嵌套路由,您需要将它们放在路由的子组件中。
但是,如果您更喜欢更内联的语法,而不是跨组件分解 Routes,则可以为要嵌套的 Route 的 prop 提供功能组件。render
<BrowserRouter>
<Route path="/" component={Frontpage} exact />
<Route path="/home" component={HomePage} />
<Route path="/about" component={AboutPage} />
<Route
path="/admin"
render={({ match: { url } }) => (
<>
<Route path={`${url}/`} component={Backend} exact />
<Route path={`${url}/home`} component={Dashboard} />
<Route path={`${url}/users`} component={UserPage} />
</>
)}
/>
</BrowserRouter>
如果你对为什么要使用道具而不是道具感兴趣,那是因为它阻止了内联功能组件在每次渲染时重新挂载。有关更多详细信息,请参阅文档。render
component
请注意,该示例将嵌套的 Routes 包装在 Fragment 中。在 React 16 之前,你可以改用容器 <div>
。
评论
match.path
match.url
path
to
interface IDefaultLayoutProps {
children: React.ReactNode
}
const DefaultLayout: React.SFC<IDefaultLayoutProps> = ({children}) => {
return (
<div className="DefaultLayout">
{children}
</div>
);
}
const LayoutRoute: React.SFC<IDefaultLayoutRouteProps & RouteProps> = ({component: Component, layout: Layout, ...rest}) => {
const handleRender = (matchProps: RouteComponentProps<{}, StaticContext>) => (
<Layout>
<Component {...matchProps} />
</Layout>
);
return (
<Route {...rest} render={handleRender}/>
);
}
const ScreenRouter = () => (
<BrowserRouter>
<div>
<Link to="/">Home</Link>
<Link to="/counter">Counter</Link>
<Switch>
<LayoutRoute path="/" exact={true} layout={DefaultLayout} component={HomeScreen} />
<LayoutRoute path="/counter" layout={DashboardLayout} component={CounterScreen} />
</Switch>
</div>
</BrowserRouter>
);
我成功地定义了嵌套路由,并在 root 路由之前定义了嵌套路由。Switch
<BrowserRouter>
<Switch>
<Route path="/staffs/:id/edit" component={StaffEdit} />
<Route path="/staffs/:id" component={StaffShow} />
<Route path="/staffs" component={StaffIndex} />
</Switch>
</BrowserRouter>
编号: https://github.com/ReactTraining/react-router/blob/master/packages/react-router/docs/api/Switch.md
评论
反应路由器 v6
允许使用嵌套路由(如 v3 中)和单独的拆分路由(v4、v5)。
嵌套路由
将所有路由保存在一个地方,用于中小型应用:
<Routes>
<Route path="/" element={<Home />} >
<Route path="user" element={<User />} />
<Route path="dash" element={<Dashboard />} />
</Route>
</Routes>
const App = () => {
return (
<BrowserRouter>
<Routes>
// /js is start path of stack snippet
<Route path="/js" element={<Home />} >
<Route path="user" element={<User />} />
<Route path="dash" element={<Dashboard />} />
</Route>
</Routes>
</BrowserRouter>
);
}
const Home = () => {
const location = useLocation()
return (
<div>
<p>URL path: {location.pathname}</p>
<Outlet />
<p>
<Link to="user" style={{paddingRight: "10px"}}>user</Link>
<Link to="dash">dashboard</Link>
</p>
</div>
)
}
const User = () => <div>User profile</div>
const Dashboard = () => <div>Dashboard</div>
ReactDOM.render(<App />, document.getElementById("root"));
<div id="root"></div>
<script src="https://unpkg.com/[email protected]/umd/react.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-dom.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/history.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-router.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-router-dom.production.min.js"></script>
<script>var { BrowserRouter, Routes, Route, Link, Outlet, useNavigate, useLocation } = window.ReactRouterDOM;</script>
替代方法:通过 useRoutes
将您的路由定义为纯 JavaScript 对象。
单独的路线
您可以使用单独的路由来满足大型应用的要求,例如代码拆分:
// inside App.jsx:
<Routes>
<Route path="/*" element={<Home />} />
</Routes>
// inside Home.jsx:
<Routes>
<Route path="user" element={<User />} />
<Route path="dash" element={<Dashboard />} />
</Routes>
const App = () => {
return (
<BrowserRouter>
<Routes>
// /js is start path of stack snippet
<Route path="/js/*" element={<Home />} />
</Routes>
</BrowserRouter>
);
}
const Home = () => {
const location = useLocation()
return (
<div>
<p>URL path: {location.pathname}</p>
<Routes>
<Route path="user" element={<User />} />
<Route path="dash" element={<Dashboard />} />
</Routes>
<p>
<Link to="user" style={{paddingRight: "5px"}}>user</Link>
<Link to="dash">dashboard</Link>
</p>
</div>
)
}
const User = () => <div>User profile</div>
const Dashboard = () => <div>Dashboard</div>
ReactDOM.render(<App />, document.getElementById("root"));
<div id="root"></div>
<script src="https://unpkg.com/[email protected]/umd/react.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-dom.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/history.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-router.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-router-dom.production.min.js"></script>
<script>var { BrowserRouter, Routes, Route, Link, Outlet, useNavigate, useLocation } = window.ReactRouterDOM;</script>
评论
Routes
Route
使用钩子
钩子的最新更新是使用 useRouteMatch
。
主路由组件
export default function NestingExample() {
return (
<Router>
<Switch>
<Route path="/topics">
<Topics />
</Route>
</Switch>
</Router>
);
}
子组件
function Topics() {
// The `path` lets us build <Route> paths
// while the `url` lets us build relative links.
let { path, url } = useRouteMatch();
return (
<div>
<h2>Topics</h2>
<h5>
<Link to={`${url}/otherpath`}>/topics/otherpath/</Link>
</h5>
<ul>
<li>
<Link to={`${url}/topic1`}>/topics/topic1/</Link>
</li>
<li>
<Link to={`${url}/topic2`}>/topics/topic2</Link>
</li>
</ul>
// You can then use nested routing inside the child itself
<Switch>
<Route exact path={path}>
<h3>Please select a topic.</h3>
</Route>
<Route path={`${path}/:topicId`}>
<Topic />
</Route>
<Route path={`${path}/otherpath`>
<OtherPath/>
</Route>
</Switch>
</div>
);
}
React Router v5 的完整答案。
const Router = () => {
return (
<Switch>
<Route path={"/"} component={LandingPage} exact />
<Route path={"/games"} component={Games} />
<Route path={"/game-details/:id"} component={GameDetails} />
<Route
path={"/dashboard"}
render={({ match: { path } }) => (
<Dashboard>
<Switch>
<Route
exact
path={path + "/"}
component={DashboardDefaultContent}
/>
<Route path={`${path}/inbox`} component={Inbox} />
<Route
path={`${path}/settings-and-privacy`}
component={SettingsAndPrivacy}
/>
<Redirect exact from={path + "/*"} to={path} />
</Switch>
</Dashboard>
)}
/>
<Route path="/not-found" component={NotFound} />
<Redirect exact from={"*"} to={"/not-found"} />
</Switch>
);
};
export default Router;
const Dashboard = ({ children }) => {
return (
<Grid
container
direction="row"
justify="flex-start"
alignItems="flex-start"
>
<DashboardSidebarNavigation />
{children}
</Grid>
);
};
export default Dashboard;
Github 存储库在这里。https://github.com/webmasterdevlin/react-router-5-demo
React Router v6 或版本 6 的完整答案,以备不时之需。
import Dashboard from "./dashboard/Dashboard";
import DashboardDefaultContent from "./dashboard/dashboard-default-content";
import { Route, Routes } from "react-router";
import { useRoutes } from "react-router-dom";
/*Routes is used to be Switch*/
const Router = () => {
return (
<Routes>
<Route path="/" element={<LandingPage />} />
<Route path="games" element={<Games />} />
<Route path="game-details/:id" element={<GameDetails />} />
<Route path="dashboard" element={<Dashboard />}>
<Route path="/" element={<DashboardDefaultContent />} />
<Route path="inbox" element={<Inbox />} />
<Route path="settings-and-privacy" element={<SettingsAndPrivacy />} />
<Route path="*" element={<NotFound />} />
</Route>
<Route path="*" element={<NotFound />} />
</Routes>
);
};
export default Router;
import DashboardSidebarNavigation from "./dashboard-sidebar-navigation";
import { Grid } from "@material-ui/core";
import { Outlet } from "react-router";
const Dashboard = () => {
return (
<Grid
container
direction="row"
justify="flex-start"
alignItems="flex-start"
>
<DashboardSidebarNavigation />
<Outlet />
</Grid>
);
};
export default Dashboard;
Github 存储库在这里。https://github.com/webmasterdevlin/react-router-6-demo
评论
我更喜欢使用react函数。此解决方案简短且更具可读性
const MainAppRoutes = () => (
<Switch>
<Route exact path='/' component={HomePage} />
{AdminRoute()}
{SampleRoute("/sample_admin")}
</Switch>
);
/*first implementation: without params*/
const AdminRoute = () => ([
<Route path='/admin/home' component={AdminHome} />,
<Route path='/admin/about' component={AdminAbout} />
]);
/*second implementation: with params*/
const SampleRoute = (main) => ([
<Route path={`${main}`} component={MainPage} />,
<Route path={`${main}/:id`} component={MainPage} />
]);
**This code worked for me with v6**
索引 .js
ReactDOM.render(
<React.StrictMode>
<BrowserRouter>
<Routes>
<Route path="/" element={<App />}>
<Route path="login" element={<Login />} />
<Route path="home" element={<Home />} />
</Route>
</Routes>
</BrowserRouter>
</React.StrictMode>,
document.getElementById('root')
);
应用 .js:
function App(props) {
useEffect(() => {
console.log('reloaded');
// Checking, if Parent component re-rendering or not *it should not be, in the sense of performance*, this code doesn't re-render parent component while loading children
});
return (
<div className="App">
<Link to="login">Login</Link>
<Link to="home">Home</Link>
<Outlet /> // This line is important, otherwise we will be shown with empty component
</div>
);
}
登录名 .js:
const Login = () => {
return (
<div>
Login Component
</div>
)
};
首页.js:
const Home= () => {
return (
<div>
Home Component
</div>
)
};
评论
previousLocation