/**
* 输出HTTP异常信息
*
* @param HttpException $e
*/
protected function renderHttpException(HttpException $e)
{
$message = $e->getMessage();
if (empty($message)) {
$message = Response::getStatusText($e->getCode());
}
$response = new Response();
$response->setStatus($e->getCode());
$response->setContent("<h1>{$message}</h1>");
$response->send();
}
