React Router 4和props.history.push

时间:2018-02-15 03:54:35

标签: javascript reactjs react-router react-redux mern

在React中有一些让我发疯的事情,我需要你的帮助。基本上,当用户点击“我的个人资料”时,我想重定向到用户的个人资料。为此,我使用以下代码段

viewProfile = () => {
    console.log('My USER ID: ', this.props.userId);
    this.props.history.push(`/profile/${this.props.userId}`);
}

这应该有效。但是,虽然在单击“我的个人资料”时URL正在更改为正确的URL,但该页面未显示。它只是保留旧页面。

谷歌搜索了一段时间后,我知道这与redux有关...但是,我找不到解决方案。 (this.props.userId来自一个Layout组件,后者从redux商店获取它)

这是我的代码:

// React
import React, { Component } from 'react';
import { withRouter } from 'react-router-dom';
// Redux
import { connect } from 'react-redux';
import * as actions from '../../../store/actions/';
// Containers and Components
   ...// more imports

const styles =  // styles

class NavBar extends Component {

  handleAuthentication = () => {
    if (this.props.isAuthenticated) {
      this.props.history.push('/logout');
    } else {
      this.props.history.push('/login');
    }
  };

  viewProfile = () => {
    console.log('My USER ID: ', this.props.userId);
    this.props.history.push(`/profile/${this.props.userId}`);
  };

  render() {
    let buttons = (
      <Auxillary>
        {this.props.isAuthenticated ? (
          <RaisedButton
            label="MY PROFILE"
            primary={true}
            style={styles.button}
            onClick={this.viewProfile} // THIS IS THE METHOD
          />
        ) : null}
        <RaisedButton
          backgroundColor={grey900}
          label={this.props.isAuthenticated ? 'LOGOUT' : 'LOGIN'}
          labelColor={grey50}
          style={styles.button}
          onClick={this.handleAuthentication}
        />
      </Auxillary>
    );

    let itemSelectField = null;
    if (this.props.location.pathname === '/items') {
      itemSelectField = (
        <ItemSelectField
          onSelectTags={tags => this.props.filterItemsByTagName(tags)}
        />
      );
    }
    let bar = null;
    if (
      this.props.location.pathname !== '/login' &&
      this.props.location.pathname !== '/register'
    ) {
      bar = (
        <AppBar
          style={styles.appBar}
          title={itemSelectField}
          iconElementLeft={
            <img style={styles.logoHeight} src={Logo} alt="logo" />
          }
          iconElementRight={buttons}
        />
      );
    }
    return <Auxillary>{bar}</Auxillary>;
  }
}

const mapDispatchToProps = dispatch => {
  return {
    filterItemsByTagName: selectedTags =>
      dispatch(actions.filterItemsByTagName(selectedTags))
  };
};

export default withRouter(connect(null, mapDispatchToProps)(NavBar));

您可以在此处找到整个应用:https://github.com/Aseelaldallal/boomtown/tree/boomtown-backend-comm

我正在努力解决这个问题。帮助

2 个答案:

答案 0 :(得分:2)

您需要整合react-router-redux

看起来更新的状态没有反映在容器中,因为redux做了浅比较以检查组件是否需要更新。

import {Router} from 'react-router-dom';
import { ConnectedRouter, routerReducer, routerMiddleware } from 'react-router-redux';
import createHistory from 'history/createBrowserHistory';

const history = createHistory()
const middleware = routerMiddleware(history)


const rootReducer = combineReducers({
    router: routerReducer,
  //other reducers
});

const store = createStore(rootReducer,applyMiddleware(middleware));

<Provider store={store}>
<ConnectedRouter>
 //routes
</ConnectedRouter>
</Provider>

此外,在reducer中,添加此代码段。

let updatedStore = JSON.parse(JSON.stringify(state));

答案 1 :(得分:1)

我认为使用<BrowserRouter>与您有关。它创建自己的历史记录实例,并监听其中的更改。因此,不同的实例将更改网址,但不会更新<BrowserRouter>。相反,您可以使用ConnectedRouter并将历史记录实例作为

传递
import createHistory from 'history/createBrowserHistory';
...
const history = createHistory();
...
<ConnectedRouter history={history}>
...
</ConnectedRouter>