Reactjs 更新存储时,我的一个控制器未渲染
我试图学习react,但在设置已验证的道具时,我无法让标题组件重新渲染。我读了很多关于它的书,但是有太多不同的编码风格,我似乎不能有效地实现它们中的任何一种。当this.props.authenticated更改时,我正在尝试使其重新渲染。这是我的最新尝试,我无法让它在代码的较小部分上工作,所以我想我应该完成整个代码块Reactjs 更新存储时,我的一个控制器未渲染,reactjs,authentication,react-redux,redux-thunk,rerender,Reactjs,Authentication,React Redux,Redux Thunk,Rerender,我试图学习react,但在设置已验证的道具时,我无法让标题组件重新渲染。我读了很多关于它的书,但是有太多不同的编码风格,我似乎不能有效地实现它们中的任何一种。当this.props.authenticated更改时,我正在尝试使其重新渲染。这是我的最新尝试,我无法让它在代码的较小部分上工作,所以我想我应该完成整个代码块 import React, { Component, PropTypes } from 'react'; import logo from '../logo.svg'; impo
import React, { Component, PropTypes } from 'react';
import logo from '../logo.svg';
import { Link } from 'react-router-dom';
import {connect} from 'react-redux';
import * as Actions from '../actions/auth';
class Header extends Component {
constructor() {
super();
this.state = { authenticated: false };
}
handleSignout() {
this.props.signOutUser();
}
logOut(event) {
event.preventDefault();
this.props.actions.logOutUser();
}
render() {
if (this.props.authenticated){
return (
<div>
<div className="App">
<div className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h2>Student Assist App</h2>
</div>
</div>
<div className="navMenu">
<ul>
<li><Link to="/">Home</Link></li>
<li><Link to="/PhoneNumbers">PhoneNumbers</Link></li>
<li><Link to="/Addresses" > Addresses</Link></li>
<li><Link to="/Credits" > Credits</Link></li>
</ul>
</div>
<div className="authMenu">
<ul className="list-inline">
{/*<li><img src={profile.picture} height="40px" /></li>
<li><span>Welcome, {profile.nickname}</span></li>*/}
<Link to="/Home" > logout</Link>
</ul>
</div>
</div>
);
}else{
return (
<div>
<div className="App">
<div className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h2>Student Assist App</h2>
</div>
</div>
<div className="navMenu">
<ul>
<li><Link to="/">Home</Link></li>
<li><Link to="/PhoneNumbers">PhoneNumbers</Link></li>
<li><Link to="/Addresses" > Addresses</Link></li>
<li><Link to="/Credits" > Credits</Link></li>
</ul>
</div>
<div className="authMenu">
<ul className="list-inline">
<li><Link to="/SignUp" > Sign Up</Link></li>
<li><Link to="/Login" > Login</Link></li>
</ul>
</div>
</div>
);
}
}
}
Header.propTypes = {
actions: PropTypes.object.isRequired
}
function mapStateToProps(state, ownProps) {
return {
authenticated: state.authenticated
}
}
export default connect(mapStateToProps, Actions)(Header);
组合减速器为根减速器
import * as ActionTypes from '../actions/auth'
import { combineReducers } from 'redux';
import { routerReducer } from 'react-router-redux';
import { reducer } from 'redux-form';
import phoneNumbers from './phoneNumbers';
import addresses from './addresses';
import auth from './auth';
const rootReducer = combineReducers({
auth,
addresses,
phoneNumbers,
routerReducer,
reducer
});
export default rootReducer;
配置存储看起来像
import { isLoggedIn } from '../actions/auth';
import {createStore, compose, applyMiddleware} from 'redux';
import { routerMiddleware } from 'react-router-redux';
import rootReducer from '../reducers/rootReducer';
import thunk from 'redux-thunk';
import createHistory from 'history/createBrowserHistory';
import ReduxPromise from 'redux-promise'
export const history = createHistory();
export function configureStore(initialState) {
const store = createStore(
rootReducer,
initialState,
compose (
applyMiddleware(thunk, ReduxPromise, routerMiddleware(history)),
window.devToolsExtension ? window.devToolsExtension() : f => f
)
);
if (module.hot) {
// Enable Webpack hot module replacement for reducers
module.hot.accept('../reducers/rootReducer', () => {
const nextRootReducer = require('../reducers/rootReducer').default;
store.replaceReducer(nextRootReducer);
});
}
store.dispatch(isLoggedIn());
return store;
}
initialState.js如下所示
import { isLoggedIn } from '../actions/auth';
import {createStore, compose, applyMiddleware} from 'redux';
import { routerMiddleware } from 'react-router-redux';
import rootReducer from '../reducers/rootReducer';
import thunk from 'redux-thunk';
import createHistory from 'history/createBrowserHistory';
import ReduxPromise from 'redux-promise'
export const history = createHistory();
export function configureStore(initialState) {
const store = createStore(
rootReducer,
initialState,
compose (
applyMiddleware(thunk, ReduxPromise, routerMiddleware(history)),
window.devToolsExtension ? window.devToolsExtension() : f => f
)
);
if (module.hot) {
// Enable Webpack hot module replacement for reducers
module.hot.accept('../reducers/rootReducer', () => {
const nextRootReducer = require('../reducers/rootReducer').default;
store.replaceReducer(nextRootReducer);
});
}
store.dispatch(isLoggedIn());
return store;
}
对所有的代码感到抱歉,但我觉得我一直在跟踪这些文件中的代码,我不知道为什么它不起作用,因为我可以从api获取数据,无论是在需要身份验证时还是在不需要身份验证时。
我想我犯了一个愚蠢的初学者错误,但如果有人能让我知道那个错误是什么,那就太好了
这就是我创建应用程序和其他模块的过程
run create-react-app
run insatll react-router-dom --save
run intstall auth0-lock --save
run install redux --save
run install redux-thunk --save
npm install redux-logger --save
npm install react-redux --save
npm install react-router-redux@next --save //this needs to be v5 to be compatible with react-router-dom v4
npm install jwt-decode --save
npm install redux-promise --save
npm install history --save
npm install --save redux-form
谢谢你的帮助。我终于让它工作了。
这就是问题所在,在我使用的标题容器中
function mapStateToProps(state, ownProps) {
return {
authenticated: state.authenticated
}
}
这个功能应该是
function mapStateToProps(state, ownProps) {
return {
authenticated: state.auth.authenticated
}
}
我很想知道.auth是从哪里来的。auth。。。
目前,我假设它来自包含此行的auth reducer auth.js
export default function auth(state = initialState, action)
电话号码的另一个减速机是
export default function phoneNumbers(state = initialState.phoneNumbers, action)
我可以从state.phoneNumbers访问phoneNumber。
如果有人能证实我的怀疑,或者给我指出正确的方向,那就太好了?
谢谢我终于让它工作了。
这就是问题所在,在我使用的标题容器中
function mapStateToProps(state, ownProps) {
return {
authenticated: state.authenticated
}
}
这个功能应该是
function mapStateToProps(state, ownProps) {
return {
authenticated: state.auth.authenticated
}
}
我很想知道.auth是从哪里来的。auth。。。
目前,我假设它来自包含此行的auth reducer auth.js
export default function auth(state = initialState, action)
电话号码的另一个减速机是
export default function phoneNumbers(state = initialState.phoneNumbers, action)
我可以从state.phoneNumbers访问phoneNumber。
如果有人能证实我的怀疑,或者给我指出正确的方向,那就太好了?
谢谢有什么问题吗?道具不变?道具已更改,但组件不重新渲染?组件根本没有呈现?嘿,Andrew,问题是在我完成登录后,(this.props.authenticated)属性被更改,但标题没有重新呈现。完成登录后,标题应显示“注销”链接,但始终显示登录链接。问题是什么?道具不变?道具已更改,但组件不重新渲染?组件根本没有呈现?嘿,Andrew,问题是在我完成登录后,(this.props.authenticated)属性被更改,但标题没有重新呈现。完成登录后,标题应显示“注销”链接,但始终显示登录链接。
export default function phoneNumbers(state = initialState.phoneNumbers, action)