如何在监听器中注入@request_stack或@request

Question

我有这个听众:

use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpFoundation\Request;

class ControllerListener
{
    public function onKernelController( FilterControllerEvent $event, Request $request )
    {
        if (HttpKernelInterface::MASTER_REQUEST === $event->getRequestType()) {
            $controllers = $event->getController();
            if (is_array( $controllers )) {
                $controller = $controllers[0];
                if (is_object( $controller )) {
                    if (method_exists( $controller, 'parControl' )) {
                        $controller->parControl(
                            $controller->getRequest(),
                            $controller->getRequest()->get( 'action' ),
                            $controller->getRequest()->get( 'context' ),
                            $controller->getRequest()->get( 'page' ),
                            $controller->getRequest()->get( 'case' ),
                            $controller->getRequest()->get( 'subset' )
                        );
                    }

                    if (method_exists( $controller, 'adminProjectControl' )) {
                        // to this method I need to pass Request $request  
                        $controller->adminProjectControl($request);
                    }

                    if (method_exists( $controller, 'accessControl' )) {
                        $controller->accessControl();
                    }
                }
            }
        }
    }

    public function onKernelResponse( FilterResponseEvent $event )
    {
        Utilities::flashDebugLoginMessage();
    }
}

它被定义为以下服务services.yml:

pdone.listener.preexecute:
    class: GroupDCA\PDOneBundle\Listener\ControllerListener
    arguments: [@request]
    public: true
    scope: request
    tags:
        - { name: kernel.event_listener, event: kernel.controller, method: onKernelController }
        - { name: kernel.event_listener, event: kernel.response, method: onKernelResponse }

但是由于我遇到了这三个错误,我应该做错事:

ControllerListener.php中的ContextErrorException第12行:可捕获致命错误:传递给GroupDCA\PDOneBundle\Listener\ControllerListener :: onKernelController()的参数2必须是Symfony\Component\HttpFoundation\Request的实例,给出字符串

ControllerListener.php中的ContextErrorException第12行:可捕获致命错误:传递给GroupDCA\PDOneBundle\Listener\ControllerListener :: onKernelController()的参数2必须是Symfony\Component\HttpFoundation\Request的实例,给出字符串

bootstrap.php.cache第3118行中的LogicException:没有"kernel.exception"事件的侦听器设置响应

那么,如何将请求注入侦听器？我能这样做吗？我在这里也阅读了这篇文章,但没有得到如何做到这一点.

Answer 1

FilterControllerEvent已经允许您访问请求:

public function onKernelController(FilterControllerEvent $event)
{
    $request = $event->getRequest();       

    // ...
}

如果在事件未提供请求的侦听器中需要请求,请始终使用请求堆栈:

use Symfony\Component\HttpFoundation\RequestStack;

class MyService
{
    private $requestStack;

    public function __construct(RequestStack $requestStack)
    {
        $this->requestStack = $requestStack;
    }

    public function doSomething()
    {
        $request = $this->requestStack->getCurrentRequest();

        // ...
    }
}

不推荐注入请求,并将其删除.请求堆栈是要走的路.也不要使用request示波器.