PrivateRoute 不在 reactjs 中重定向

Question

我正在为遵循 Udemy 课程的开发人员构建一个网站。它在用户登录后将其重定向到仪表板。我需要将仪表板页面设为私有，以便只有登录用户才能访问它，因此我将其放在私有路由中。如果用户注销，我需要使用 privateroute 函数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，当我键入 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;
  }
}

package.json 在客户端

{
  "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。这有效。

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

PrivateRoute 不在 reactjs 中重定向

PrivateRoute not redirecting in reactjs

node.js

reactjs

redux

mern

react-router-dom