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react-router-dom 4.x 简单使用

react-router-dom 4.x 简单使用

作者: 夏夏夏夏顿天 | 来源:发表于2018-09-29 09:39 被阅读15次

    在react我们要使用路由,我们得这么使用

    安装

    yarn add react-router-dom
    

    使用

    
    import React from "react";
    import { BrowserRouter as Router, Route, Link } from "react-router-dom";
    
    const BasicExample = () => (
      <Router>
        <div>
          <ul>
            <li>
              <Link to="/">Home</Link>
            </li>
            <li>
              <Link to="/about">About</Link>
            </li>
            <li>
              <Link to="/topics">Topics</Link>
            </li>
          </ul>
    
          <hr />
    
          <Route exact path="/" component={Home} />
          <Route path="/about" component={About} />
          <Route path="/topics" component={Topics} />
        </div>
      </Router>
    );
    
    const Home = () => (
      <div>
        <h2>Home</h2>
      </div>
    );
    
    const About = () => (
      <div>
        <h2>About</h2>
      </div>
    );
    
    const Topics = ({ match }) => (
      <div>
        <h2>Topics</h2>
        <ul>
          <li>
            <Link to={`${match.url}/rendering`}>Rendering with React</Link>
          </li>
          <li>
            <Link to={`${match.url}/components`}>Components</Link>
          </li>
          <li>
            <Link to={`${match.url}/props-v-state`}>Props v. State</Link>
          </li>
        </ul>
    
        <Route path={`${match.url}/:topicId`} component={Topic} />
        <Route
          exact
          path={match.url}
          render={() => <h3>Please select a topic.</h3>}
        />
      </div>
    );
    
    const Topic = ({ match }) => (
      <div>
        <h3>{match.params.topicId}</h3>
      </div>
    );
    
    export default BasicExample;
    

    注意

    在Router下面必须要要加一层,比如div

    <Router>
       <div>
           ...............
       </div>
    </Router>
    

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