整个周末都来过。页面刷新后,React Router会继续先路由到/ login页面,然后再路由到首页“ /”。
ReactDOM.render(
<Provider store={store}>
<Router>
<Switch>
<Route path="/login" component={Login} />
<AuthenticatedComponent>
<Header />
<Route path="/" component={App} exact />
</AuthenticatedComponent>
</Switch>
</Router>
</Provider>,
document.getElementById("root")
);
我尝试绕过路线,但这没有用-没有错误,它只是做同样的事情。我正在做的一件事是说。 “如果用户已登录(不为null),请立即将其路由到首页“ /”。这是在{登录}组件中完成的,并写在下面:
componentWillReceiveProps(props) {
if(props.user !== null) {
props.history.push('/')
}
}
这就像一个护身符。问题是,每当我刷新浏览器时,URL都会立即转到/ login,然后转到“ /”(即主页)。我添加了AuthenticatedComponent包装器作为最后的测试。我在此组件中编写了以下内容:
componentWillMount(){
if( this.props.user !== null) {
this.props.history.push('/')
} else {
this.props.history.push('/login')
}
}
我没有收到任何错误-该功能刚刚出现
答案 0 :(得分:1)
用<Switch>
包住<AuthenticatedComponent>
(并将<Header />
移到auth组件中)。
或创建一个HOC Wrapper component(如果某些路由需要auth,而有些则不需要auth,则是模块化的和有用的)。
工作示例:https://codesandbox.io/s/5m2690nn6n
RequireAuth.js
import React, { Component, Fragment } from "react";
import { withRouter } from "react-router";
import Login from "./Login";
import Header from "./Header";
class RequireAuth extends Component {
state = { isAuthenticated: false };
componentDidUpdate = (prevProps, prevState) => {
if (this.props.location.pathname !== prevProps.location.pathname && !this.state.isAuthenticated) {
this.props.history.push("/");
}
};
isAuthed = () => this.setState({ isAuthenticated: true });
unAuth = () => this.setState({ isAuthenticated: false });
render = () => (
!this.state.isAuthenticated
? <Login isAuthed={this.isAuthed} />
: <Fragment>
<Header unAuth={this.unAuth} />
{this.props.children}
</Fragment>
);
}
export default withRouter(RequireAuth);
index.js
import React from "react";
import { render } from "react-dom";
import { BrowserRouter, Switch, Route } from "react-router-dom";
import Home from "../components/Home";
import Players from "../components/Players";
import Schedule from "../components/Schedule";
import RequireAuth from "./components/RequireAuth";
import "uikit/dist/css/uikit.min.css";
render(
<BrowserRouter>
<RequireAuth>
<Switch>
<Route exact path="/" component={Home} />
<Route exact path="/players" component={Players} />
<Route path="/schedule" component={Schedule} />
</Switch>
</RequireAuth>
</BrowserRouter>,
document.getElementById("root")
);
对于任何使用react-router v3的人:
index.js
render (
<Router>
<Route path="/" component={RequireAuth}>
<IndexRoute component={Home} />
<Route path="players" component={Players} />
<Route path="schedule" component={Schedule} />
</Route>
</Router>, document.getElementById("root")
);