使用symfony/messenger时，切换symfony/mailer中的sendmail参数

composer require symfony/messenger symfony/mailer

framework:
    messenger:
        transports:
            async: 'amqp://guest:guest@localhost:5672/%2f/messages'
        routing:
            'App\Message\EmailMessage': async

framework:
    mailer:
        dsn: 'sendmail://default'

namespace App\Message;

class EmailMessage
{
    private $subject;
    private $to;
    private $body;

    public function __construct(string $subject, string $to, string $body)
    {
        $this->subject = $subject;
        $this->to = $to;
        $this->body = $body;
    }

    // Getters and setters
}

namespace App\MessageHandler;

use App\Message\EmailMessage;
use Symfony\Component\Mailer\MailerInterface;
use Symfony\Component\Messenger\Handler\MessageHandlerInterface;

class EmailMessageHandler implements MessageHandlerInterface
{
    private $mailer;

    public function __construct(MailerInterface $mailer)
    {
        $this->mailer = $mailer;
    }

    public function __invoke(EmailMessage $message)
    {
        $email = (new Email())
            ->from('noreply@example.com')
            ->to($message->getTo())
            ->subject($message->getSubject())
            ->text($message->getBody());

        $this->mailer->send($email);
    }
}

namespace App\Controller;

use App\Message\EmailMessage;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Messenger\MessageBusInterface;

class EmailController extends AbstractController
{
    public function sendEmail(MessageBusInterface $messageBus): Response
    {
        $emailMessage = new EmailMessage('Hello', 'recipient@example.com', 'This is the email body');
        $messageBus->dispatch($emailMessage);

        return new Response('Email sent');
    }
}