PrivateRoute没有在reactjs中重定向

Question

我正在为学习 Udemy 课程的开发人员构建一个网站。它将用户登录后重定向到仪表板。我需要将仪表板页面设为私有，以便只有登录的用户才能访问它，因此我将其放在私有路由中。如果用户退出，我需要使用 privateroute 功能将用户重定向到登录页面，但是私有路由不会重定向它将保留在仪表板页面上，当我输入 localhost://3000/dashboard 时，我可以访问仪表板无需用户登录的页面 我需要你的帮助来解决这个问题 提前谢谢你

仪表板组件

import React from 'react';
import PropTypes from 'prop-types';

const Dashboard = props => {
  return <div>Dashboard</div>;
};

Dashboard.propTypes = {};

export default Dashboard;

PrivateRoute 组件

import React from 'react';
import { Route, Redirect } from 'react-router-dom';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';

const PrivateRoute = ({
  component: Component,
  auth: { isAuthenticated, loading },
  ...rest
}) => (
  <Route
    {...rest}
    render={props =>
      !isAuthenticated && !loading ? (
        <Redirect to='/login' />
      ) : (
        <Component {...props} />
      )
    }
  />
);

PrivateRoute.propTypes = {
  auth: PropTypes.object.isRequired,
};

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

export default connect(mapStateToProps)(PrivateRoute);

App.js

import React, { Fragment, useEffect } from 'react';
import './App.css';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import Navbar from './components/layout/Navbar';
import Landing from './components/layout/Landing';
import Login from './components/auth/Login';
import Register from './components/auth/Register';
import Alert from './components/layout/Alert';

// Redux
import { Provider } from 'react-redux';
import store from './store';
import { loadUser } from './actions/auth';
import setAuthToken from './utils/setAuthToken';
import Dashboard from './components/dashboard/Dashboard';
import PrivateRoute from './components/routing/PrivateRoute';

if (localStorage.token) {
  setAuthToken(localStorage.token);
}

const App = () => {
  useEffect(() => {
    store.dispatch(loadUser());
  }, []);
  return (
    <Provider store={store}>
      <Router>
        <Fragment>
          <Navbar />
          <Route exact path='/' component={Landing} />
          <section className='container'>
            <Alert />
            <Switch>
              <Route exact path='/register' component={Register} />
              <Route exact path='/login' component={Login} />
              <PrivateRoute exact path='/dashboard' component={Dashboard} />
            </Switch>
          </section>
        </Fragment>
      </Router>
    </Provider>
  );
};

export default App;

**auth.js **

import {
  REGISTER_SUCCESS,
  REGISTER_FAIL,
  USER_LOADED,
  AUTH_ERROR,
  LOGIN_FAIL,
  LOGIN_SUCCESS,
  LOGOUT,
} from '../actions/types';

const initialState = {
  token: localStorage.getItem('token'),
  isAuthenticated: null,
  loading: true,
  user: null,
};
export default function (state = initialState, action) {
  const { type, payload } = action;

  switch (type) {
    case USER_LOADED:
      return {
        ...state,
        isAuthenticated: true,
        loading: false,
        user: payload,
      };
    case REGISTER_SUCCESS:
    case LOGIN_SUCCESS:
      localStorage.setItem('token', payload.token);
      return {
        ...state,
        ...payload,
        isAuthenticated: true,
        loading: false,
      };

    case REGISTER_FAIL:
    case AUTH_ERROR:
    case LOGIN_FAIL:
    case LOGOUT:
      localStorage.removeItem('token');
      return {
        ...state,
        token: null,
        isAuthenticated: false,
        loading: false,
      };
    default:
      return state;
  }
}

客户端的package.json

{
  "name": "client",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.16.1",
    "@testing-library/react": "^12.1.2",
    "@testing-library/user-event": "^13.5.0",
    "axios": "^0.24.0",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-redux": "^6.0.0",
    "react-router-dom": "^4.3.1",
    "react-scripts": "5.0.0",
    "redux": "^4.1.2",
    "redux-devtools-extension": "^2.13.9",
    "redux-thunk": "^2.4.1",
    "uuid": "^8.3.2",
    "web-vitals": "^2.1.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "proxy": "http://localhost:5000"
}

Answer 1

这是一个加载问题。加载值不变。价值保持真实， 因此，我从渲染中删除了加载检查。这行得通。

const PrivateRoute = ({
  component: Component,
  auth: { isAuthenticated },
  ...rest
}) => (
  <Route
    {...rest}
    render={props =>
      !isAuthenticated  ? (
        <Redirect to='/login' />
      ) : (
        <Component {...props} />
      )
    }
  />
);