参考文档：https://reacttraining.com/react-router/core/guides/redux-integration/blocked-updates

异常现象点击Link url 变化但是页面不更新
出现此问题的条件：
1.使用了react-reduct 的connect
2.Router与Root 之间有 有layout布局 元素
解决办法：withRouter 包裹组件
原因：react-reduct shouldComponentUpdate 没有接收到任何属性改变，因此不再重新绘制页面

var Home =  withRouter (connect()(() => <Link to={"Cal"}>Home 点击到子页面 </Link>)) var Cal = withRouter( connect()(() => <div>Cal <Link to={"/Home"}>回到首页</Link></div>)) var Layout =withRouter ( connect()((props) => <div>头{props.children}尾</div>))

异常代码如下

import React from 'react'
import ReactDOM from 'react-dom'
import {createStore} from 'redux'
import {Provider,connect} from 'react-redux'
import {Route,Switch,Link,BrowserRouter as Router} from 'react-router-dom' ;
const store = createStore(
    function* (state,action) {
        return state
    }
)
var Home = connect()(() => <Link to={"Cal"}>Home 点击到子页面 </Link>) var Cal = connect()(() => <div>Cal <Link to={"/Home"}>回到首页</Link></div>) var Layout = connect()((props) => <div>头{props.children}尾</div>) ReactDOM.render( <Provider store={store}> <Router> <div> <Layout> <Switch> <Route exact path="/Home" component={Home}/> <Route path="/Cal" component={Cal}/> </Switch> </Layout> </div> </Router> </Provider>,document.getElementById('root') )