使用Symfony2更加冗长地记录错误

Question

我使用以下配置进行生产日志记录:

monolog:
    handlers:
        mail:
            type:         fingers_crossed
            action_level: error
            handler:      grouped
        grouped:
            type:    group
            members: [streamed, buffered]
        streamed:
            type:  stream
            path:  %kernel.logs_dir%/%kernel.environment%.log
            level: debug
        # buffered is used to accumulate errors and send them as batch to the email address
        buffered: 
            type:    buffer
            handler: swift
        swift:
            type:       swift_mailer
            from_email: info@....com
            to_email:   info@....com
            subject:    Error Occurred!
            level:      debug

这会发送如下电子邮件:

[2012-03-21 21:24:09] security.DEBUG:从session [] []中读取SecurityContext

[2012-03-21 21:24:09] security.DEBUG:从用户提供商处重新加载用户.[] []

[2012-03-21 21:24:09] security.DEBUG:用户名"jakob.asdf"已从用户提供程序重新加载.[] [] [2012-03-21 21:24:09] request.INFO:匹配路由"_user_settings"(参数:"_ control":"... Bundle\Controller\UserController :: settingsAction","username": "Jakob.asdf","_ lute":"_ user_settings")[] []

[2012-03-21 21:24:09] request.ERROR:Symfony\Component\HttpKernel\Exception\NotFoundHttpException:...找不到Bundle\Entity\User对象.(未捕获的例外)/var/www/.../vendor/bundles/Sensio/Bundle/FrameworkExtraBundle/Request/ParamConverter/DoctrineParamConverter.php第50行[] []

[2012-03-21 21:24:09] security.DEBUG:在session [] []中写入SecurityContext

我真的很想在这里有一个堆栈跟踪,或者至少我的控制器中的行号触发了错误.否则,它真的很多猜测可能出错的地方.

现在,问题是:有没有办法实现这种更加冗长的日志记录？

Answer 1

是的,它是可以实现的.

创建一个ExceptionListener类.

//namespace declarations

class ExceptionListener{
  /**
   * @var \Symfony\Component\HttpKernel\Log\LoggerInterface
   */
  private $logger =null;

  /**
   * @param null|\Symfony\Component\HttpKernel\Log\LoggerInterface $logger
   */
  public function __construct(LoggerInterface $logger = null)
  {
    $this->logger = $logger;
  }

  /**
   * @param \Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent $event
   */
  public function onKernelException(GetResponseForExceptionEvent $event)
  {
    if($this->logger === null)
      return;
    $exception = $event->getException();
    $flattenException = FlattenException::create($exception);
    $this->logger->err('Stack trace');
    foreach ($flattenException->getTrace() as $trace) {
      $traceMessage = sprintf('  at %s line %s', $trace['file'], $trace['line']);
      $this->logger->err($traceMessage);
    }  
  }
}

然后注册监听器.

 kernel.listener.your_listener_name:
  class: FQCN\Of\ExceptionListener
  tags:
      - { name: kernel.event_listener, event: kernel.exception, method: onKernelException , priority: -1}
      - { name: monolog.logger, channel: mychannel }
  arguments: 
      - "@logger"

您可以根据需要调整它.

Answer 2

我喜欢Symfony文档中的解决方案.您所要做的就是将以下代码添加到您的services.yml文件中:

services:
    my_service:
        class: Monolog\Processor\IntrospectionProcessor
        tags:
            - { name: monolog.processor }

这使用IntrospectionProcessor经过测试的处理器向您的日志添加更多信息.它很可能会提取您关心的信息.