Symfony 등록 후 사용자 인증을 자동화하는 방법은 무엇입니까?

<code class="yaml">security:
    # ... (Your existing configuration)
    firewalls:
        # ... (Your existing firewalls)
        registration:
            pattern:    ^/register$
            anonymous:  ~</code>

<code class="php">use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Component\Security\Http\Event\InteractiveLoginEvent;

public function registerAction()
{
    // ... (Register the user)

    if ($this->get("request")->getMethod() == "POST") {
        // Set the user's password
        // ...

        $em->persist($user);
        $em->flush();

        // Create the authentication token
        $token = new UsernamePasswordToken($user, $user->getPassword(), "registration", $user->getRoles());

        // Store the token in the security context
        $this->get("security.token_storage")->setToken($token);

        // Fire the login event
        $event = new InteractiveLoginEvent($request, $token);
        $this->get("event_dispatcher")->dispatch("security.interactive_login", $event);
    }
}</code>