React Router-未定义的历史记录 [英] React router - undefined history

问题描述

我正在尝试使用1.0.0-rc1 react-router和历史记录2.0.0-rc1在按下按钮后手动浏览网站.不幸的是，按下按钮后，我得到:

I am trying to use the 1.0.0-rc1 react-router and history 2.0.0-rc1 to navigate manually through the website after pressing the button. Unfortunately, after pressing the button I get:

无法读取未定义的属性"pushState"

Cannot read property 'pushState' of undefined

我的路由器代码:

import React from 'react';
import { Router, Route, Link, browserHistory } from 'react-router'
import AppContainer from './components/AppContainer.jsx';
import MyTab from './components/test/MyTab.jsx';
import MainTab from './components/test/MainTab.jsx';


var routes = (
    <Route component={AppContainer} >
        <Route name="maintab" path="/" component={MainTab} />
        <Route name="mytab" path="/mytab" component={MyTab} />
    </Route>
);

React.render(<Router history={browserHistory}>{routes}</Router>, document.getElementById('main'));

导航按钮位于MyTab上，它会尝试导航到MainTab:

The navigation button is on MyTab and it attemps to navigate to MainTab:

import React from 'react';
import 'datejs';
import History from "history";
export default React.createClass({

    mixins: [ History ],

    onChange(state) {
        this.setState(state);
    },

    handleClick() {
        this.history.pushState(null, `/`)
    },

    render() {
        return (
            <div className='container-fluid' >
                <button type="button" onClick={this.handleClick.bind(this)}>TEST</button>
            </div>

        );
    }
});

当我将历史记录与this.props.history一起使用时，一切正常.这段代码有什么问题?

When I use history with this.props.history everything works fine. What is the problem with this code?

编辑.

添加以下内容后:

const history = createBrowserHistory();

React.render(<Router history={history}>{routes}</Router>, document.getElementById('main'));

我尝试访问我的应用.之前(没有history = {history})，我刚刚访问localhost:8080/testapp，并且一切正常-我的静态资源生成到dist/testapp目录中.现在，在此URL下，我得到:

I try to access my app. Before (without history={history}), I just accessed localhost:8080/testapp and everything worked fine - my static resources are generated into dist/testapp directory. Now under this URL I get:

位置"/testapp/"与任何资源都不匹配

Location "/testapp/" did not match any resources

我尝试通过以下方式使用useBasename函数:

I tried to use the useBasename function in a following way:

    import { useBasename } from 'history'
    const history = useBasename(createBrowserHistory)({
    basename: '/testapp'
});

React.render(<Router history={history}>{routes}</Router>, document.getElementById('main'));

应用程序又回来了，但是我又收到了错误消息

and the application is back, but again I get the error

无法读取未定义的属性"pushState"

Cannot read property 'pushState' of undefined

在通话中:

handleClick() {
    this.history.pushState(null, `/mytab`)
},

我想可能是因为我在gulp中执行了connect任务，所以我在配置中添加了history-api-fallback:

I thougt it may be because of my connect task in gulp, so I have added history-api-fallback to configuration:

settings: {
      root: './dist/',
      host: 'localhost',
      port: 8080,
      livereload: {
        port: 35929
      },
      middleware: function(connect, opt){
        return [historyApiFallback({})];
      }
    }

但是添加中间件后，访问网站后得到的所有信息是:

But after adding middleware all I get after accessing a website is:

无法获取/

Cannot GET /

推荐答案

自反应路由器":"^ 4.1.1" 起，您可以尝试以下操作:

As of "react-router": "^4.1.1", you may try the following:

使用" this.props.history.push('/new-route')".这是一个详细的示例

Use 'this.props.history.push('/new-route')'. Here's a detailed example

1:Index.js

1: Index.js

 import { BrowserRouter, Route, Switch } from 'react-router-dom'; 
 //more imports here
    ReactDOM.render(
      <div>
        <BrowserRouter>
           <Switch>
              <Route path='/login' component={LoginScreen} />
              <Route path='/' component={WelcomeScreen} />
           </Switch>
        </BrowserRouter>
     </div>, document.querySelector('.container'));

上面，我们已经使用BrowserRouter，"react-router-dom"中的Route和Switch.

Above, we have used BrowserRouter, Route and Switch from 'react-router-dom'.

因此，每当您在React Router的"Route"中添加组件时，即

So whenever you add a component in the React Router 'Route', that is,

<Route path='/login' component={LoginScreen} />

.. ，然后"React Router"将向该组件添加一个名为"history"的新属性(在本例中为LoginScreen).您可以使用此历史记录道具以编程方式导航到其他活动.

..then 'React Router' will add a new property named 'history' to this component (LoginScreen, in this case). You can use this history prop to programatically navigate to other rountes.

因此，现在在LoginScreen组件中，您可以像这样导航:

So now in the LoginScreen component you can navigate like this:

2:LoginScreen:

2: LoginScreen:

return (
      <div>
       <h1> Login </h1>
       <form onSubmit={this.formSubmit.bind(this)} >
         //your form here
       </form>
      </div>

    );



formSubmit(values) {
 // some form handling action
   this.props.history.push('/'); //navigating to Welcome Screen
}

这篇关于React Router-未定义的历史记录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！