Symfony 5登录页面提交后重定向到登录页面，会话在会话表上不断增加

Question

Symfony 5登录在凭据无效的登录页面上未显示任何错误，如果凭据正确，则会重定向到登录页面。

$request

Answer 1

这里是安全控制器的一个例子

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Security\Http\Authentication\AuthenticationUtils;

class SecurityController extends AbstractController
{
    /**
     * @Route("/login", name="app_login")
     * @param AuthenticationUtils $authenticationUtils
     * @return Response
     */
    public function login(AuthenticationUtils $authenticationUtils): Response
    {
        if ($this->container->get('security.authorization_checker')->isGranted('ROLE_USER')) {
            return $this->redirectToRoute('car.index');
        }

         if ($this->getUser()) {

            return $this->redirectToRoute('car.index');
         }

        // get the login error if there is one
        $error = $authenticationUtils->getLastAuthenticationError();
        // last username entered by the user
        $lastUsername = $authenticationUtils->getLastUsername();

        return $this->render('security/login.html.twig', ['last_username' => $lastUsername, 'error' => $error]);
    }

    /**
     * @Route("/logout", name="app_logout")
     */
    public function logout()
    {

        throw new \LogicException('This method can be blank - it will be intercepted by the logout key on your firewall.');
    }
}