关于react-router/react-router-dom v4 history不能访问问题的解决

import React, { Component } from 'react';
import { BrowserRouter, Route } from 'react-router-dom';
import { Provider } from 'mobx-react';
import stores from '../store/index';
import Bundle from '../components/bundle';
import Hello from 'bundle-loader"/">
   <Route path="/" component={HelloAPP}/>
  </BrowserRouter>
  </Provider>
 );
 };
}

import React, { Component } from 'react';
// 需要这步，你要npm 这个，
import PropTypes from 'prop-types';
export default class Hello extends Component {
 constructor(props) {
 super(props);
 }
 // 这一步是重点
 static contextTypes = {
 router: PropTypes.object.isRequired
 };
 test = () => {
 console.log(this.context);
 setTimeout(() => {
  this.context.router.history.push("/otherPath");
 }, 1000);
 };
 render() {
 return (
  <div>
  <button onClick={this.test}>按钮</button>
  </div>
 );
 };
}