React Redirect在登录后不工作

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

class Login extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      loggedIn: false,
    };
  }

  handleLogin = () => {
    // 登录逻辑，验证用户名和密码等
    // 登录成功后设置loggedIn为true
    this.setState({ loggedIn: true });
  }

  render() {
    if (this.state.loggedIn) {
      return <Redirect to="/dashboard" />;
    }

    return (
      <div>
        {/* 登录表单 */}
        <button onClick={this.handleLogin}>登录</button>
      </div>
    );
  }
}

export default Login;