在react-router-dom v6中，开关被路由替换。下面是配置react-router-dom v6的简单示例。

import * as React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';

import Layout from './components/Layout';
import ProtectedRoute from './components/ProtectedRoute';
import LoginPage from './pages/LoginPage';
import WizardPage from './pages/WizardPage';
import RequestsPage from './pages/RequestsPage';

import './App.scss'

export class App extends React.Component {
    public render() {
        const sharedRouteProps = { exact: true, authenticationPath: '/login' };
        const wizardRouteProps = { ...sharedRouteProps, path: "/", component: WizardPage };
        const requestsRouteProps = { ...sharedRouteProps, path: "/requests", component: RequestsPage };

        return (
            <Layout>
              <Router>
                <Switch>
                    <Route exact path='/login' component={LoginPage} />
                    <ProtectedRoute {...wizardRouteProps} />
                    <ProtectedRoute {...requestsRouteProps} />
                </Switch>
              </Router>
            </Layout>
        );
    }
}

如果你正在使用react-router-dom v6，你必须改变Switch到Routes，如下面的例子所示:

而不是导入Switch， import {Switch，…} from 'react-router-dom';

进口航线 import{路由，…} from 'react-router-dom';

然后，不要使用component ={ComponentName}，而是使用element={<ComponentName/>}，如下所示:

import { Routes, Route, ...} from 'react-router-dom';
    .
    .
    .  
    <Routes>
      <Route exact path='/' element={<Home/>}></Route>
    </Routes>

改变

import { BrowserRouter as Router, Switch, Route, Link } from "react-router-dom";

<Switch>
    <Route path="/home" component={Home} />
</Switch>

to

import { BrowserRouter as Router, Routes, Route, Link } from "react-router-dom";

<Routes>
    <Route path="/home" element={ <Home />} />
</Routes>

我也面临着这个问题，并最终通过安排代码解决了它。我是React的新手。

以下是我的App.js代码(类基组件):

import logo from './logo.svg';
import './App.css';

import React, { Component } from 'react'
import PropTypes from 'prop-types'
import Navbar from './components/Navbar';
import News from './components/News';
import { BrowserRouter as Router, Route, Routes,Link } from 'react-router-dom'

export class App extends Component {
  static propTypes = {

  }

  render() {
    return (
      <>
        <Navbar/>
        <Router>
          <Routes>
            <Route path="/general"><News pageSize={3} country={'us'} category={'general'}/></Route>
          </Routes>
        </Router>
      </>
    )
  }
}

export default App

这是一个使用react-router-dom V6的例子

import React from 'react'
import { BrowserRouter as Router, Route, Routes } from 'react-router-dom'

import '../styles/global.css'

import Layout from '../containers/Layout'
import Home from '../pages/Home'
import Login from '../containers/Login'
import RecoveryPassword from '../containers/RecoveryPassword'
import NotFound from '../pages/NotFound'

const App = () => {
  return (
    <Router>
      <Layout>
        <Routes>
          <Route exact path="/" element={<Home/>}/>
          <Route exact path="/login" element={<Login/>}/>
          <Route exact path="/recovery-password" element={<RecoveryPassword/>}/>
          <Route path="*" element={<NotFound/>}/>
        </Routes>
      </Layout>
    </Router>
  );
}

export default App;

import React from "react";
import { Link, BrowserRouter as Router, Route, Routes } from "react-router-dom";
import "./App.css";
import App from "./App";
const RouterPage = () => {
    return (
        <Router>
            <div>
                <nav>
                    <Link to="/">Home</Link>
                    <Link to="/posts">Posts</Link>
                    <Link to="/">About</Link>
                    <Link to="/contact">Contact</Link>
                </nav>
                <Routes>
                    <Route exact path="/" element={<App />}></Route>
                    <Route path="/post" element={<App />} />
                    <Route path="/about" element={<App />} />
                    <Route path="/contact" element={<App />} />
                </Routes>
            </div>
        </Router>
    );
};

你应该把Switch换成Routes