反应 - 路由器 withRouter 不注入路由器 [英] react - router withRouter does not inject router

问题描述

我想在名为App"的顶级 React 组件上使用 withRouter.

文档在这里:https://github.com/reactjs/react-router/blob/v2.4.0/upgrade-guides/v2.4.0.md#withrouter-hoc-higher-order-component

我是这样使用的:

从react"导入React；从react-dom"导入{渲染}；从反应路由器"导入 {Router, Link, hashHistory, Route, IndexRoute, withRouter};从./voteview/Voteview.jsx"导入投票视图；从./overview/Overview.jsx"导入OverView；从 'material-ui/AppBar' 导入 AppBar；从'material-ui/styles/getMuiTheme'导入getMuiTheme；从'material-ui/styles/MuiThemeProvider'导入MuiThemeProvider；从react-tap-event-plugin"导入injectTapEventPlugin；//需要onTouchTap//当反应1.0发布时可以消失//检查这个回购://https://github.com/zilverline/react-tap-event-plugin注入TapEventPlugin();const App = React.createClass({使成为() {返回 (<div><应用栏标题=民主主义者"onTitleTouchTap={()=>this.props.router.push('/')}></AppBar><br/>{this.props.children}

);}});使成为((<MuiThemeProvider muiTheme={getMuiTheme()}><路由器历史={hashHistory}><Route path="/" component={App}><Route path="voteview/:baselineId" component={VoteView}/><IndexRoute 组件={OverView}/></路线></路由器></MuiThemeProvider>), document.getElementById('app'));module.exports = withRouter(App);

我想使用 withRouter(App) 以使 Appbar 标题可点击.如果用户单击它，则应打开默认的/"路径.这就是我尝试使用 onTitleTouchTap={()=>this.props.router.push('/')} 实现的目标.

我的问题是路由器不存在.当用户点击Appbar中的标题时，会触发一个错误:Uncaught TypeError: Cannot read property 'push' of undefined.

withRouter(SomeComponent) 对我来说适用于组件树更下方的组件.但在这种情况下我无法让它运行.

知道我做错了什么吗?

解决方案

发生这种情况是因为您在渲染 React 应用程序后注入了路由器.

const App = React.createClass({使成为() {返回 (<div><应用栏标题=民主主义者"onTitleTouchTap={()=>this.props.router.push('/')}></AppBar><br/>{this.props.children}

);}});App = withRouter(App);使成为((<MuiThemeProvider muiTheme={getMuiTheme()}><路由器历史={hashHistory}><Route path="/" component={App}><Route path="voteview/:baselineId" component={VoteView}/><IndexRoute 组件={OverView}/></路线></路由器></MuiThemeProvider>), document.getElementById('app'));

更好的解决方案是为 App 创建一个文件，就像您对其他组件所做的一样.

const App = React.createClass({使成为() {返回 (<div><应用栏标题=民主主义者"onTitleTouchTap={()=>this.props.router.push('/')}></AppBar><br/>{this.props.children}

);}});module.exports = withRouter(App);

并将其导入您的 index.js.

I want to use withRouter on my top-level React component called 'App'.

Documentation is here: https://github.com/reactjs/react-router/blob/v2.4.0/upgrade-guides/v2.4.0.md#withrouter-hoc-higher-order-component

I use it like this:

import React from "react";
import { render } from "react-dom";
import {Router, Link, hashHistory, Route, IndexRoute, withRouter} from "react-router";
import VoteView from "./voteview/Voteview.jsx";
import OverView from "./overview/Overview.jsx";
import AppBar from 'material-ui/AppBar';
import getMuiTheme from 'material-ui/styles/getMuiTheme';
import MuiThemeProvider from 'material-ui/styles/MuiThemeProvider';
import injectTapEventPlugin from 'react-tap-event-plugin';

//Needed for onTouchTap
//Can go away when react 1.0 release
//Check this repo:
//https://github.com/zilverline/react-tap-event-plugin
injectTapEventPlugin();

const App = React.createClass({
  render() {
      return (
          <div>
              <AppBar
                title="Democratizer"
                onTitleTouchTap={()=>this.props.router.push('/')}
              >
              </AppBar>
              <br/>

            {this.props.children}
          </div>
      );
  }
});

render((
  <MuiThemeProvider muiTheme={getMuiTheme()}>
    <Router history={hashHistory}>
      <Route path="/" component={App}>
          <Route path="voteview/:baselineId" component={VoteView}/>
          <IndexRoute component={OverView}/>
      </Route>
    </Router>
  </MuiThemeProvider>
  ), document.getElementById('app'));

module.exports = withRouter(App);

I want to use withRouter(App) in order to make Appbar Title clickable. If the user clicks it, the default "/" path should be opened. That is what I try to achieve with onTitleTouchTap={()=>this.props.router.push('/')}.

My problem is that the router is not there. When the user clicks on the title in the Appbar, it triggers an error: Uncaught TypeError: Cannot read property 'push' of undefined.

withRouter(SomeComponent) works fine for me for components further down the component tree. But I cannot get it to run in this case.

Any ideas what I did wrong?

解决方案

That is happening because you are injecting the router after you render the react app.

const App = React.createClass({
  render() {
      return (
          <div>
              <AppBar
                title="Democratizer"
                onTitleTouchTap={()=>this.props.router.push('/')}
              >
              </AppBar>
              <br/>

            {this.props.children}
          </div>
      );
  }
});

App = withRouter(App);


render((
  <MuiThemeProvider muiTheme={getMuiTheme()}>
    <Router history={hashHistory}>
      <Route path="/" component={App}>
          <Route path="voteview/:baselineId" component={VoteView}/>
          <IndexRoute component={OverView}/>
      </Route>
    </Router>
  </MuiThemeProvider>
  ), document.getElementById('app'));

A better solution would be creating a file for App like you have done with the other components.

const App = React.createClass({
  render() {
      return (
          <div>
              <AppBar
                title="Democratizer"
                onTitleTouchTap={()=>this.props.router.push('/')}
              >
              </AppBar>
              <br/>

            {this.props.children}
          </div>
      );
  }
});

module.exports = withRouter(App);

and import it in your index.js.

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