Свой контроллер из Бандла

use Symfony\Component\Config\FileLocator;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\Extension;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\Routing\Loader\YamlFileLoader;
use Symfony\Component\Routing\RouteCollection;
 
        $loader = new XmlFileLoader($container, new FileLocator(__DIR__ . '/../../config'));
        $loader2 = new YamlFileLoader(new FileLocator(__DIR__ . '/../../config/'));
        try {
            $loader->load('services.xml');
            $route = $loader2->load('routes.yaml');
 
            $subCollection = new RouteCollection();
            $subCollection->addCollection($route);

class CheckPayment extends AbstractController
{
    public function test()
    {
        return new JsonResponse('Hello World');
    }
 
}

        $loader = new XmlFileLoader($container, new FileLocator(__DIR__ . '/../../config'));
        $loader2 = new YamlFileLoader(new FileLocator(__DIR__ . '/../../config/'));
        try {
            $loader->load('services.xml');
            $route = $loader2->load('routes.yaml');
            $subCollection = new RouteCollection();
            $subCollection->addCollection($route);

$loader = new YamlFileLoader(new FileLocator(__DIR__));
$route = $loader->load('routes.yaml');
$subCollection = new RouteCollection();
$subCollection->addCollection($route);
$context = new RequestContext('');
$generator = new UrlGenerator($subCollection, $context);
$url = $generator->generate('blog', ['slug' => 'post']);
echo $url, PHP_EOL;