在外部包中加载routes.yaml而不进行配置。在项目中

有了symfony 4,我想加载 routes.yaml 在我的自定义外部包中。我创建了扩展类 Load 但没有加载(资源: https://symfony.com/doc/current/routing/custom_route_loader.html#more-advanced-loaders )

namespace GaylordP\FineUploaderBundle\Routing;

use Symfony\Component\Config\Loader\Loader;
use Symfony\Component\Routing\RouteCollection;

class AdvancedLoader extends Loader
{
    public function load($resource, $type = null): RouteCollection
    {
        $routes = new RouteCollection();

        $importedRoutes = $this->import(
            '@FineUploaderBundle/Resources/config/routes.yaml',
            'yaml'
        );

        $routes->addCollection($importedRoutes);
        dump($routes); // not executed
        exit; // not executer
        return $routes;
    }

    public function supports($resource, $type = null): bool
    {
        return 'advanced_extra' === $type;
    }
}