React Router 4.0中文快速入门

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

const Home = () => (
  <div>
    <h2>Home</h2>
  </div>
)

const About = (props) => { 
     let goto=function(){
       console.log(props);
       let { history } = props; 
       history.push('/topics');  //编程式跳转，注意使用prop来读取history
     }
     return (
      <div>
        <h2><button onClick={goto}>about</button></h2>    
      </div>
      )
  
 }

const Topic = ({ match }) => (
  <div>
    <h3>{match.params.topicId}</h3>
  </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 BasicExample = ({ match }) => (
  <Router>    //跳由容器
    <div>
      <ul>
        <li><Link to="/">Home</Link></li>
        <li><Link to="/about">About</Link></li>
        <li><Link to="/topics">Topics</Link></li>

        <li><Link to="/query/user?id=123&name=minooo">query1</Link></li>
        <li><Link to={{pathname: '/query/user', search: '?id=456&name=minooo'}}>query2</Link></li>
      </ul>


     
      <hr/>
   
      <Route exact path="/" component={Home}/>   //表示点击Link里的to就自动把组件渲染 <Route>位置这里 exact表示精确匹配
      <Route path="/about" component={About}/>
      <Route path="/topics" component={Topics}/>

      <Route path='/query/user' render={({match, location}) => (   //render他component一样的用法，不过render不用再次渲染，比较高效 
        <div>
          <p><About></About></p>
          <p>query</p>
          <p>match:{JSON.stringify(match)}</p>
          <p>location:{JSON.stringify(location)}</p>
          <p>id:{new URLSearchParams(location.search).get('id')}</p>
          <p>name:{new URLSearchParams(location.search).get('name')}</p>
        </div>
      )} />

    </div>
  </Router>
)
export default BasicExample