Reactjs React Redux登录问题
我正在学习react和redux,并尝试实现登录 下面是我的路线Reactjs React Redux登录问题,reactjs,redux,react-router,react-redux,Reactjs,Redux,React Router,React Redux,我正在学习react和redux,并尝试实现登录 下面是我的路线 import React, { Component } from 'react'; import logo from './logo.svg'; import './App.css'; import Login from './components/Login/Login' import Home from './components/Home/Home' import store from './store/store' imp
import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import Login from './components/Login/Login'
import Home from './components/Home/Home'
import store from './store/store'
import {Provider} from 'react-redux';
import history from './history/history';
import {Router,Route,Switch,Redirect} from 'react-router-dom'
import {connect} from 'react-redux'
class App extends Component {
render() {
let storelogginState=store.getState();
let logginState=storelogginState.loginReducer.loggedIn
console.log('store',logginState)
return (
<Router history={history}>
<div className="App">
<Provider store={store}>
<Switch>
<Route exact path="/" component={Login}/>
<Route exact path="/home" render={()=>(
this.props.loginReducer.loggedIn?(<Home/>):(<Redirect to="/"/>)
) }/>
</Switch>
</Provider>
</div>
</Router>
);
}
}
下面是我的减速机
const initalState={
loggedIn:false
}
function loginReducer(state=initalState,action){
switch (action.type) {
case 'success':
return Object.assign({},state,{loggedIn:true});
break;
default:
return state;
}
}
所以我的问题是路由器
<Route exact path="/home" render={()=>(
logginState?(<Home/>):(<Redirect to="/"/>)
) }/>
(
logginState?():()
) }/>
logginState总是false,但一旦成功登录,它会显示true,因为我可以返回主页,但它会将我重定向回登录页面
谢谢它将您重定向到
/
,因为在获取
返回响应之前,路由已经使用loggedIn:false
触发(顺便说一句,我假设您从状态中正确检索了loggedIn
)。您需要做的是延迟渲染路由,可能是将另一个值存储在存储中,如:
减速器
const initalState = {
hasFinishedAuthorization: false,
loggedIn: false
};
function loginReducer(state = initalState, action) {
switch (action.type) {
case "success":
return Object.assign({}, state, {
loggedIn: true,
hasFinishedAuthorization: true
});
break;
default:
return state;
}
}
组件
{hasFinishedAuthorization &&
<Switch>
<Route
exact
path="/home"
render={()=>(logginState?(<Home/>):(<Redirect to="/"/>)
)}/>
</Switch>
}
{hasFinishedAuthorization&&
(logginState?():()
)}/>
}
编辑:
使用react-redux访问您的状态:
import { connect } from "react-redux";
let MyRoutes = ({ loggedIn }) => (
<Switch>
<Route exact path="/" component={Login} />
<Route
exact
path="/home"
render={() => (loggedIn ? <Home /> : <Redirect to="/" />)}
/>
</Switch>
);
const mapStateToProps = state => ({
loggedIn: state.loginReducer.loggedIn
});
MyRoutes = connect(mapStateToProps)(MyRoutes);
class App extends Component {
render() {
return (
<Router history={history}>
<div className="App">
<Provider store={store}>
<MyRoutes />
</Provider>
</div>
</Router>
);
}
}
从“react redux”导入{connect};
让MyRoutes=({loggedIn})=>(
(loggedIn?:)}
/>
);
常量mapStateToProps=状态=>({
loggedIn:state.loginReducer.loggedIn
});
MyRoutes=connect(MapStateTops)(MyRoutes);
类应用程序扩展组件{
render(){
返回(
);
}
}
如果你有一个代码笔或什么的,如果我能帮你的话,那就太好了:)Tomasz,添加另一个变量真的很重要吗。。我的logginState没有更新我已经添加了app.js的完整代码以进行检索logginstate@user3106347显示如何访问logginState
variable我已经更新了我的问题let storelogginState=store.getState();让logginState=storelogginState.loginReducer.logged问题在于,当redux状态更改时,组件不会重新渲染。使用react-redux库。@user3106347查看编辑。顺便说一句,看看你是如何创建redux商店的,我不确定你是否正确访问了你的状态。
import { connect } from "react-redux";
let MyRoutes = ({ loggedIn }) => (
<Switch>
<Route exact path="/" component={Login} />
<Route
exact
path="/home"
render={() => (loggedIn ? <Home /> : <Redirect to="/" />)}
/>
</Switch>
);
const mapStateToProps = state => ({
loggedIn: state.loginReducer.loggedIn
});
MyRoutes = connect(mapStateToProps)(MyRoutes);
class App extends Component {
render() {
return (
<Router history={history}>
<div className="App">
<Provider store={store}>
<MyRoutes />
</Provider>
</div>
</Router>
);
}
}