使用render prop声明的React PrivateRoute在执行重定向之前显示私有组件

import React from 'react';
import { Route, Redirect } from 'react-router-dom';

const PrivateRoute = ({ component: Component, ...rest }) => {
  const isAuthenticated = // 判断用户是否已登录或已经授权的逻辑

  return (
    <Route
      {...rest}
      render={props =>
        isAuthenticated ? (
          <Component {...props} />
        ) : (
          <Redirect to="/login" />
        )
      }
    />
  );
};

export default PrivateRoute;

import React from 'react';
import { BrowserRouter as Router, Switch } from 'react-router-dom';
import PrivateRoute from './PrivateRoute';
import Home from './Home';
import Dashboard from './Dashboard';
import Login from './Login';

const App = () => {
  return (
    <Router>
      <Switch>
        <Route exact path="/login" component={Login} />
        <PrivateRoute exact path="/" component={Home} />
        <PrivateRoute exact path="/dashboard" component={Dashboard} />
      </Switch>
    </Router>
  );
};

export default App;