Question

我制作了以下听众：

namespace AppBundle\EventListener;

use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;

class ExceptionListener
{
    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        // You get the exception object from the received event
        $exception = $event->getException();
        $message = array(
            'message'=>$exception->getMessage(),
            'code'=>$exception->getCode(),
            'stacktrace'=>$exception->getTrace()
        );

        // Customize your response object to display the exception details
        $response = new Response();
        $response->setContent(json_encode($message,JSON_PRETTY_PRINT));

        // HttpExceptionInterface is a special type of exception that
        // holds status code and header details
        if ($exception instanceof HttpExceptionInterface) {
            $response->setStatusCode($exception->getStatusCode());
            $response->headers->replace($exception->getHeaders());
        } else {
            $response->setStatusCode(Response::HTTP_INTERNAL_SERVER_ERROR);
            $response->headers->set('content/type','application/json');
        }

        // Send the modified response object to the event
        $event->setResponse($response);
    }
}

根据我的services.yml：

发生异常时，上面的监听器会被触发

parameters:
services:
 app.exception_listener:
  class: AppBundle\EventListener\ExceptionListener
  tags:
   - { name: kernel.event_listener, event: kernel.exception }

现在我想要实现的是在生产时从其他环境显示不同的json输出。我的意思是最终用户/ api消费者看到堆栈跟踪是不明智的，也是个好主意。

那么你有什么想法我将如何知道我何时在制作以及何时处于开发环境中？

Answer 1

您只需将kernel.environment参数传递给类构造函数：

 app.exception_listener:
  class: AppBundle\EventListener\ExceptionListener
  arguments: ["%kernel.environment%"]
  tags:
   - { name: kernel.event_listener, event: kernel.exception }

然后在你的班上：

class ExceptionListener
{
    private $env;

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

    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        if ($this->env == 'dev') {
            // do something
        } else {
            // do something else
        }
    }
}

Symfony：自定义监听器更改不同环境的响应

1 个答案: