react-router 4.0(四)跳转404
import React from 'react' import ReactDOM from 'react-dom' import { HashRouter, Route, Link, Prompt, Switch } from 'react-router-dom' const Other = ({location})=>( <h3>没有这个地址……{location.pathname}</h3> ) export default class App extends React.Component { render(){ return( <HashRouter> <div> <ul> <li><Link to="/">首页</Link></li> <li><Link to="/one">第一页</Link></li> <li><Link to="/two">第二页</Link></li> </ul> <Switch> {/* 渲染第一个被location匹配到的并且作为子元素的<Route>或者<Redirect>, 当找到匹配的<Route>后会停止继续匹配 */} <Route path="/" exact render={()=><h3>首页</h3>}/> <Route path="/one" render={()=><h3>One</h3>}/> <Route path="/two" render={()=><h3>Two</h3>}/> <Route component={Other}/> {/* 不存在的url跳转渲染Other这个404组件 */} </Switch> </div> </HashRouter> ) } } ReactDOM.render(<App/>,document.getElementById("app"))