Question

react-router 4.0这个路由怎么配置

Answer 1

react实现路由可以直接使用react-router。
ReactRouter是由Ryan Florence开发的应用于ReactJS的路由组件，它通过定义ReactJS组件<Routes>及相关子组件来实现页面路由的映射、参数的解析和传递。
以下是例子：
var ReactRouter = require('react-router');
var Routes = ReactRouter.Routes;
var Route = ReactRouter.Route;

//定义整个页面的路由结构
var routes = (
<Routes location="hash">
<Route path="/" handler={App}>
<Route path="books" name="bookList" handler={Books}/>
<Route path="movies" name="movieList" handler={Movies}/>
</Route>
</Routes>
);
与之前版本不同，在 react-router4 中，渲染<redirect>组件会直接跳转到目标位置。from 属性仅用于<redirect>包裹着<Switch> 组件中的时候。
Rendering a <Redirect> will navigate to a new location. The new location will override the current location in the history stack, like server-side redirects (HTTP 3xx) do
<Redirect to="/somewhere/else"/> // render 该组件发生跳转

From: A pathname to redirect from. This can only be used to match a location when rendering a <Redirect> inside of a <Switch>. See <Switch children> for more details.

<Switch>
<Redirect from='/old-path' to='/new-path'/>
<Route path='/new-path' component={Place}/>
</Switch>