Symfony2记录404错误

问题描述

发生404错误时，我需要能够记录/接收电子邮件.我可以在文档中看到如何为这些错误设置新模板，但是如何首先在控制器中捕获它们，以便实现日志记录/发出消息的逻辑?

I need to be able to log/receive an email when a 404 error occurs. I can see in the docs how to set up a new template for these errors, but how do I catch them in the first place in my controller so that I can implement the logging/emailing logic?

推荐答案

也许添加一个监听kernel.exception事件的事件监听器来做到这一点?查看 http://symfony.com/doc/current/book /internals.html#kernel-exception-event 以及 http://symfony.com/doc/current/reference/dic_tags.html#dic-tags-kernel-event-listener

Maybe adding an event listener listening for the kernel.exception event would do it?Check out http://symfony.com/doc/current/book/internals.html#kernel-exception-event along with http://symfony.com/doc/current/reference/dic_tags.html#dic-tags-kernel-event-listener

一个小例子:

1)创建一个自定义侦听器

1) Create a custom Listener

//bundles/Acme/AcmeBundle/Listener/CustomListener.php

namespace Acme\AcmeBundle\Listener;
use Symfony\Component\EventDispatcher\Event;

public class CustomListener {
    public function onKernelException(Event $event) {
        //Get hold of the exception
        $exception = $event->getException();
        //Do the logging
        // ...
    }
}

2)将侦听器添加到您的配置中

2) Add the listener to your config

//config.yml
services:
    kernel.listener.your_listener_name:
        class: Acme\AcmeBundle\Listener\CustomListener
        tags:
            - { name: kernel.event_listener, event: kernel.exception, method: onKernelException }

要掌握日志记录或邮件(Swiftmailer)服务，您可以考虑将它们注入侦听器(http://symfony.com/doc/current/book/service_container.html#referencing-injecting-services)

To get hold of the logging or mailing (Swiftmailer) services, you might consider injecting them into the listener (http://symfony.com/doc/current/book/service_container.html#referencing-injecting-services)

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