symfony路由文件详解:

①查看所有路由
php bin/console debug:router

②查看指定路由信息
php bin/console debug:router admin_course_list

③根据指定路由名称获取url
如果你的控制器扩展自AbstractController，使用generateUrl()帮助器:
$this->generateUrl('sign_up');

如果你的控制器没有从AbstractController扩展，你需要在你的控制器中获取服务，并遵循下一节的指示:
// src/Service/SomeService.php
namespace App\Service;

use Symfony\Component\Routing\Generator\UrlGeneratorInterface;

class SomeService
{
    public function __construct(
        private UrlGeneratorInterface $router,
    ) {
    }

    public function someMethod()
    {
        // ...

        // generate a URL with no route arguments
        $signUpPage = $this->router->generate('sign_up');

        // generate a URL with route arguments
        $userProfilePage = $this->router->generate('user_profile', [
            'username' => $user->getUserIdentifier(),
        ]);

        // generated URLs are "absolute paths" by default. Pass a third optional
        // argument to generate different URLs (e.g. an "absolute URL")
        $signUpPage = $this->router->generate('sign_up', [], UrlGeneratorInterface::ABSOLUTE_URL);

        // when a route is localized, Symfony uses by default the current request locale
        // pass a different '_locale' value if you want to set the locale explicitly
        $signUpPageInDutch = $this->router->generate('sign_up', ['_locale' => 'nl']);
    }
}