在当前版本的React Router (v3)中,我可以接受服务器响应并使用browserHistory。点击进入相应的响应页面。但是,这在v4中是不可用的,我不确定处理它的适当方法是什么。

在这个例子中,使用Redux, components/app-product-form.js在用户提交表单时调用this.props. addproduct (props)。当服务器返回成功时,用户将被带到Cart页面。

// actions/index.js
export function addProduct(props) {
  return dispatch =>
    axios.post(`${ROOT_URL}/cart`, props, config)
      .then(response => {
        dispatch({ type: types.AUTH_USER });
        localStorage.setItem('token', response.data.token);
        browserHistory.push('/cart'); // no longer in React Router V4
      });
}

如何从React Router v4的函数重定向到购物车页面?


当前回答

/*Step 1*/
myFunction(){  this.props.history.push("/home"); }
/**/
 <button onClick={()=>this.myFunction()} className={'btn btn-primary'}>Go 
 Home</button>

其他回答

使用回调。这对我很管用!

export function addProduct(props, callback) {
  return dispatch =>
    axios.post(`${ROOT_URL}/cart`, props, config)
    .then(response => {
    dispatch({ type: types.AUTH_USER });
    localStorage.setItem('token', response.data.token);
    callback();
  });
}

在组件中,你只需要添加回调

this.props.addProduct(props, () => this.props.history.push('/cart'))

React Router 4中最简单的方法是使用

this.props.history.push('/new/url');

但是要使用此方法,您现有的组件应该能够访问历史对象。我们可以通过

If your component is linked to Route directly, then your component already has access to history object. eg: <Route path="/profile" component={ViewProfile}/> Here ViewProfile has access to history. If not connected to Route directly. eg: <Route path="/users" render={() => <ViewUsers/>} Then we have to use withRouter, a heigher order fuction to warp the existing component. Inside ViewUsers component import { withRouter } from 'react-router-dom'; export default withRouter(ViewUsers); That's it now, your ViewUsers component has access to history object.

更新

2-在这个场景中,将所有的路由道具传递给你的组件,然后我们可以从组件中访问this.props.history,即使没有一个HOC

eg:

<Route path="/users" render={props => <ViewUsers {...props} />}

我可以通过使用bind()来实现这一点。我想点击索引中的一个按钮。Jsx,向服务器发布一些数据,评估响应,并重定向到success.jsx。以下是我的计算方法……

index.jsx:

import React, { Component } from "react"
import { postData } from "../../scripts/request"

class Main extends Component {
    constructor(props) {
        super(props)
        this.handleClick = this.handleClick.bind(this)
        this.postData = postData.bind(this)
    }

    handleClick() {
        const data = {
            "first_name": "Test",
            "last_name": "Guy",
            "email": "test@test.com"
        }

        this.postData("person", data)
    }

    render() {
        return (
            <div className="Main">
                <button onClick={this.handleClick}>Test Post</button>
            </div>
        )
    }
}

export default Main

request.js:

import { post } from "./fetch"

export const postData = function(url, data) {
    // post is a fetch() in another script...
    post(url, data)
        .then((result) => {
            if (result.status === "ok") {
                this.props.history.push("/success")
            }
        })
}

success.jsx:

import React from "react"

const Success = () => {
    return (
        <div className="Success">
            Hey cool, got it.
        </div>
    )
}

export default Success

通过在index中绑定这个到postData。jsx,我能够访问this.props.history在request.js…那么我就可以在不同的组件中重用这个函数,只是要确保我记得包含这个。构造函数()中的postData = postData.bind(this)。

所以我的做法是: -而不是使用历史重定向。推送,我只是使用从react-router-dom重定向组件 当使用这个组件时,你只需要传递push=true,它就会处理剩下的事情

import * as React from 'react';
import { Redirect } from 'react-router-dom';
class Example extends React.Component {
  componentDidMount() {
    this.setState({
      redirectTo: '/test/path'
    });
  }

  render() {
    const { redirectTo } = this.state;

    return <Redirect to={{pathname: redirectTo}} push={true}/>
  }
}

创建一个带有自己的browserHistory的自定义路由器:

import React from 'react';
import { Router } from 'react-router-dom';
import { createBrowserHistory } from 'history';

export const history = createBrowserHistory();

const ExtBrowserRouter = ({children}) => (
  <Router history={history} >
  { children }
  </Router>
);

export default ExtBrowserRouter

接下来,在你定义路由器的根目录上,使用以下命令:

import React from 'react';       
import { /*BrowserRouter,*/ Route, Switch, Redirect } from 'react-router-dom';

//Use 'ExtBrowserRouter' instead of 'BrowserRouter'
import ExtBrowserRouter from './ExtBrowserRouter'; 
...

export default class Root extends React.Component {
  render() {
    return (
      <Provider store={store}>
        <ExtBrowserRouter>
          <Switch>
            ...
            <Route path="/login" component={Login}  />
            ...
          </Switch>
        </ExtBrowserRouter>
      </Provider>
    )
  }
}

最后,在需要的地方导入历史记录并使用它:

import { history } from '../routers/ExtBrowserRouter';
...

export function logout(){
  clearTokens();      
  history.push('/login'); //WORKS AS EXPECTED!
  return Promise.reject('Refresh token has expired');
}