反应路由器v4路由不工作

Question

import React from 'react';
import ReactDOM from 'react-dom';

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

const Home = () => <h1><Link to= "/about">Click Me</Link></h1>
const About = () => <h1>About Us</h1>

const Test = () => (
  <Router>
    <Switch>
    <Route path ="/" component = {Home} />
    <Route path ="/about" component = {About} />
    </Switch>
  </Router>
)

ReactDOM.render(<Test />, document.getElementById('app'));

Answer 1

您需要为/使用精确的路径，否则它也将与/about匹配。

<Route exact path="/" component={Home} />

正如评论中提到的，对于这样简单的事情，我建议使用Create React应用程序，它将确保您的服务器代码和webpack设置都是正确的。使用create-react-app后，只需使用npm安装react router v4包，然后将上面的代码放入app.js文件中，就可以工作了。对代码进行了一些小的修改，以使其能够与create-react-app一起工作，如下所示：

// App.js
import React from 'react';

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

const Home = () => <h1><Link to="/about">Click Me</Link></h1>
const About = () => <h1>About Us</h1>

const App = () => (
  <Router>
    <Switch>
      <Route exact path="/" component={Home} />
      <Route path="/about" component={About} />
    </Switch>
  </Router>
)

export default App;

React Router V4文档中的快速启动说明将告诉您与我刚才解释的大致相同。