如何在zend 2中的异常上创建内部服务器错误

Question

在zend 2中，无论何时发生异常，无论与该异常相关的控制器如何，如何创建内部服务器错误？

对于内部服务器错误，我只想将状态代码设置为500！

Answer 1

在Module.php的onBootstrap（）中，附加一个事件以侦听调度错误。

$eventManager = $e->getApplication()->getEventManager();
$eventManager->attach(MvcEvent::EVENT_DISPATCH_ERROR, function($event){
  $response = $event->getResponse();
  $response->setStatusCode(500);
  return $response;
});

Answer 2

如果您在MvcEvent :: EVENT_ROUTE或MvcEvent :: EVENT_DISPATCH的侦听器中引发错误，则您必须自己捕获异常。

 public function onDispatch(MvcEvent $event)
{
    $routeMatch       = $event->getRouteMatch();
    $controllerName   = $routeMatch->getParam('controller', 'not-found');
    /** @var Application $application */
    $application      = $event->getApplication();
    $events           = $application->getEventManager();
    $route            = $routeMatch->getMatchedRouteName();
    $request          = $event->getRequest();
    $controllerLoader = $application->getServiceManager()->get('ControllerManager');

    if ($controllerLoader->has($controllerName)) {
        $controller = $controllerLoader->get($controllerName);
        try {
            if ($route == "requests" && $request instanceof Request && $request->getMethod() == 'POST') {
                $this->checkAuthRequest($request);
            }
        } catch (\Exception $ex) {
            $event->setError($application::ERROR_EXCEPTION)
                ->setController($controllerName)
                ->setControllerClass(get_class($controller))
                ->setParam('exception', $ex);
            $events->trigger(MvcEvent::EVENT_DISPATCH_ERROR, $event);
        }
    }
}