Symfony2调用内核超过1次

Question

我遇到了symfony2问题。虽然载入页面symfony加载内核超过1次这里是转储..

DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\ProfilerListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DumpListener::configure". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Bundle\FrameworkBundle\EventListener\SessionListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\FragmentListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\TranslatorListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\Security\Http\Firewall::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Bundle\AsseticBundle\EventListener\RequestListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Knp\Bundle\PaginatorBundle\Subscriber\SlidingPaginationSubscriber::onKernelRequest". 
    DEBUG - Notified event "kernel.controller" to listener "AppBundle\EventListener\CheckPageContactListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\ControllerListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\HttpCacheListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\SecurityListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\TemplateListener::onKernelController". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\ProfilerListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DumpListener::configure". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Bundle\FrameworkBundle\EventListener\SessionListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\FragmentListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\TranslatorListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Component\Security\Http\Firewall::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Symfony\Bundle\AsseticBundle\EventListener\RequestListener::onKernelRequest". 
    DEBUG - Notified event "kernel.request" to listener "Knp\Bundle\PaginatorBundle\Subscriber\SlidingPaginationSubscriber::onKernelRequest". 
    DEBUG - Notified event "kernel.controller" to listener "AppBundle\EventListener\CheckPageContactListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\ControllerListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\HttpCacheListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\SecurityListener::onKernelController". 
    DEBUG - Notified event "kernel.controller" to listener "Sensio\Bundle\FrameworkExtraBundle\EventListener\TemplateListener::onKernelController". 

有人有这个问题吗？版本2.6.9

Answer 1

不，你正在阅读日志错误。这不是Symfony不止一次加载内核，即Symfony将内核事件通知给所有感兴趣的订阅者。 这很好，你不必担心它。

当然，每次页面载入时您可能会有多个请求，因此您必须检查它。

1. 您应该排除子请求（内部请求或重定向）。见http://symfony.com/doc/current/cookbook/service_container/event_listener.html#request-events-checking-types。

2. 您可能想要排除资产等。

这是改编自实际监听器我用一个例子：

public function onKernelRequest(GetResponseEvent $event) 
{ 
    // Exclude subrequests 
    if ($event->getRequestType() != HttpKernelInterface::MASTER_REQUEST) 
    { 
     return; 
    } 

    // Exclude assets 
    $route = $event->getRequest()->get('_route'); 
    if (strpos($route, "_") === 0) { 
     return; 
    } 
}