Question

尝试进行某些路由需要身份验证。

我有这个：

class App extends Component {
  render() {
    const menuClass = `${this.props.contentMenuClass} col-xs-12 col-md-9`;
    return (  
      <BrowserRouter history={browserHistory}>
        <div className="App">
          <Header properties={this.props} />
            <div className="container-fluid">
              <div className="row">
                <SideNav />
                <div className={menuClass} id="mainContent">
                  <Switch>
                    {routes.map(prop =>
                        (
                          <Route
                            path={prop.path}
                            component={prop.component}
                            key={prop.id}
                            render={() => (
                              !AuthenticationService.IsAutheenticated() ? 
                                <Redirect to="/Login"/>
                               : 
                               <Route path={prop.path}
                               component={prop.component}
                               key={prop.id}/>

                            )}
                          />
                        ))}
                  </Switch>
                </div>
              </div>
            </div>
          {/* <Footer /> */}

        </div>

      </BrowserRouter>
    );
  }
}

const mapStateToProps = state => ({
  contentMenuClass: state.menu,
});

export default connect(mapStateToProps)(App);

注意：是的，身份验证服务可以正常工作。

对于每条路由，我都会检查用户是否已通过身份验证，如果未通过，那么我要将其重定向到登录页面，如果是，则它将以“ /”路由登陆到第一页。

我得到的是：

react-dom.development.js:14227 The above error occurred in the <Route> component:
    in Route (created by App)
    in Switch (created by App)
    in div (created by App)
    in div (created by App)
    in div (created by App)
    in div (created by App)
    in Router (created by BrowserRouter)
    in BrowserRouter (created by App)
    in App (created by Connect(App))
    in Connect(App)
    in Provider

我在哪里做错了？

Answer 1

一种简单的解决方案是制作一个HOC（高阶组件）来包装所有受保护的路由。

根据应用程序的嵌套程度，您可能希望利用本地状态或redux状态。

工作示例：https://codesandbox.io/s/5m2690nn6n（使用本地状态）

routes / index.js

import React from "react";
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";

export default () => (
  <BrowserRouter>
    <RequireAuth>
      <Switch>
        <Route exact path="/" component={Home} />
        <Route exact path="/players" component={Players} />
        <Route path="/schedule" component={Schedule} />
      </Switch>
    </RequireAuth>
  </BrowserRouter>
);

components / RequireAuth.js

import React, { Component, Fragment } from "react";
import { withRouter } from "react-router-dom";
import Login from "./Login";
import Header from "./Header";

class RequireAuth extends Component {
  state = { isAuthenticated: false };

  componentDidMount = () => {
    if (!this.state.isAuthenticated) {
      this.props.history.push("/");
    }
  };

  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);

或者，您可以创建一个包含受保护路由的受保护组件，而不是包装路由。

工作示例：https://codesandbox.io/s/yqo75n896x（使用redux代替本地状态）。

routes / index.js

import React from "react";
import { BrowserRouter, Route, Switch } from "react-router-dom";
import { createStore } from "redux";
import { Provider } from "react-redux";
import Home from "../components/Home";
import Header from "../containers/Header";
import Info from "../components/Info";
import Sponsors from "../components/Sponsors";
import Signin from "../containers/Signin";
import RequireAuth from "../containers/RequireAuth";
import rootReducer from "../reducers";

const store = createStore(rootReducer);

export default () => (
  <Provider store={store}>
    <BrowserRouter>
      <div>
        <Header />
        <Switch>
          <Route exact path="/" component={Home} />
          <Route path="/info" component={Info} />
          <Route path="/sponsors" component={Sponsors} />
          <Route path="/protected" component={RequireAuth} />
          <Route path="/signin" component={Signin} />
        </Switch>
      </div>
    </BrowserRouter>
  </Provider>
);

容器/RequireAuth.js

import React from "react";
import { Route, Redirect } from "react-router-dom";
import { connect } from "react-redux";
import ShowPlayerRoster from "../components/ShowPlayerRoster";
import ShowPlayerStats from "../components/ShowPlayerStats";
import Schedule from "../components/Schedule";

const RequireAuth = ({ match: { path }, isAuthenticated }) =>
  !isAuthenticated ? (
    <Redirect to="/signin" />
  ) : (
    <div>
      <Route exact path={`${path}/roster`} component={ShowPlayerRoster} />
      <Route path={`${path}/roster/:id`} component={ShowPlayerStats} />
      <Route path={`${path}/schedule`} component={Schedule} />
    </div>
  );

export default connect(state => ({
  isAuthenticated: state.auth.isAuthenticated
}))(RequireAuth);

您甚至可以通过创建包装函数来获得更多的模块化。您只需包装组件即可选择任何路线。我没有代码框示例，但它与此setup类似。

例如：<Route path="/blog" component={RequireAuth(Blog)} />

Answer 2

您拼写错误的... module: { rules: [ { test: /\.(sass|scss)$/, loader: ExtractTextPlugin.extract(['css-loader', 'sass-loader']) } ] }, ...。

这也是一个假设，因为您只提供了堆栈跟踪，而不提供Autheenticated，这可能表示above error不是函数。

如何使用react-router处理身份验证？

2 个答案: