所以问题非常简单.我的控制器中的代码已经变得冗余,我决定为它做一个注释.
if (!$request->getContentType() === 'json' ) {
return new JsonResponse(array('success' => false));
}
$content = $request->getContent();
if(empty($content)){
throw new BadRequestHttpException("Content is empty");
}
$data = json_decode($content,true);
if(empty($data) || !array_key_exists('type',$data)) {
return new JsonResponse(array('success' => false));
}
如何制作自定义注释@CheckRequest,我可以使用$request对象作为参数？
您需要创建一个自定义注释,然后是一个注入注释阅读器并处理kernel.controller事件的侦听器：
注解
/**
* @Annotation
*/
class CheckRequest
{
}
服务定义
services:
controller_check_request:
class: AppBundle\EventListener\ControllerCheckRequestListener
tags:
- { name: kernel.event_listener,event: kernel.controller,method: onKernelController}
arguments:
- "@annotation_reader"
监听器：
namespace AppBundle\EventListener;
use AppBundle\Annotation\CheckRequest;
use Doctrine\Common\Annotations\Reader;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
class ControllerCheckRequestListener
{
/** @var Reader */
private $reader;
/**
* @param Reader $reader
*/
public function __construct(Reader $reader)
{
$this->reader = $reader;
}
/**
* {@inheritdoc}
*/
public function onKernelController(FilterControllerEvent $event)
{
if (!is_array($controllers = $event->getController())) {
return;
}
$request = $event->getRequest();
$content = $request->getContent();
list($controller,$methodName) = $controllers;
$reflectionClass = new \ReflectionClass($controller);
$classAnnotation = $this->reader
->getClassAnnotation($reflectionClass,CheckRequest::class);
$reflectionObject = new \ReflectionObject($controller);
$reflectionMethod = $reflectionObject->getmethod($methodName);
$methodAnnotation = $this->reader
->getmethodAnnotation($reflectionMethod,CheckRequest::class);
if (!($classAnnotation || $methodAnnotation)) {
return;
}
if ($request->getContentType() !== 'json' ) {
return $event->setController(
function() {
return new JsonResponse(['success' => false]);
}
);
}
if (empty($content)) {
throw new BadRequestHttpException('Content is empty');
}
$data = json_decode($content,true);
if ($request->getContentType() !== 'json' ) {
return $event->setController(
function() {
return new JsonResponse(['success' => false]);
}
);
}
}
}
请注意,不是返回响应,而是使用$event-> setController();设置整个控制器,并且在进行该调用时也必须返回.
然后在您的控制器中,您可以在整个类中设置它：
use AppBundle\Annotation\CheckRequest;
/**
* @CheckRequest
*/
class YourController extends Controller
{
}
或个别方法/行动：
use AppBundle\Annotation\CheckRequest;
class TestController extends Controller
{
/**
* @Route("/",name="index")
* @CheckRequest
*/
public function indexAction(Request $request)
{
// ...
}
}