Question

我正在努力确保全局处理从数据库连接问题引发的异常。

我在render（）方法的app / Exceptions \ Handler.php中添加了以下内容，但是没有捕到任何异常：

<?php

namespace App\Exceptions;

use Exception;
use Illuminate\Database\QueryException;
use Illuminate\Validation\ValidationException;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Laravel\Lumen\Exceptions\Handler as ExceptionHandler;
use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use PDOException;

class Handler extends ExceptionHandler
{
    /**
     * A list of the exception types that should not be reported.
     *
     * @var array
     */
    protected $dontReport = [
        AuthorizationException::class,
        HttpException::class,
        ModelNotFoundException::class,
        ValidationException::class,
    ];

    /**
     * Report or log an exception.
     *
     * This is a great spot to send exceptions to Sentry, Bugsnag, etc.
     *
     * @param  \Exception  $e
     * @return void
     */
    public function report(Exception $e)
    {
        parent::report($e);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Exception  $e
     * @return \Illuminate\Http\Response
     */
    public function render($request, Exception $e)
    {
        if ($e instanceof AuthorizationException) {
            return response()->json((['status' => 403, 'message' => 'Insufficient privileges to perform this action']), 403);
        }

        if ($e instanceof MethodNotAllowedHttpException) {
            return response()->json((['status' => 405, 'message' => 'Method Not Allowed']), 405);
        }

        if ($e instanceof NotFoundHttpException) {
            return response()->json((['status' => 404, 'message' => 'The requested resource was not found']), 404);
        }

        if ($e instanceof QueryException) {
            return response()->json((['id' => 0, 'status_billing' => 'The requested resource was not found']), 500);
        }

        if ($e instanceof PDOException) {
            return response()->json((['id' => 0, 'status_billing' => 'The requested resource was not found']), 500);
        }


        return parent::render($request, $e);
    }
}

这也被添加到我的app.php：

$app->singleton( App\Exceptions\Handler::class );

对于我的生活，我无法让它发挥作用。

非常感谢任何帮助/建议

由于

Answer 1

从app.php更改以下行

$app->singleton( App\Exceptions\Handler::class );

为：

$app->singleton(
    Illuminate\Contracts\Debug\ExceptionHandler::class,
    App\Exceptions\Handler::class
);

修改

在上述异常处理程序绑定中需要接口的原因是，当处理Route时抛出异常时，将调用以下函数来处理该异常。

protected function handleException($passable, Exception $e) { if (! $this->container->bound(ExceptionHandler::class) || ! $passable instanceof Request) { throw $e; } $handler = $this->container->make(ExceptionHandler::class); $handler->report($e); return $handler->render($passable, $e); }

if条件检查容器是否具有ExceptionHandler类的绑定。如果存在绑定，则异常将被传递到该异常处理程序类以进一步处理。如果没有声明绑定，则将重新抛出异常。这里检查绑定Illuminate\Contracts\Debug\ExceptionHandler。这就是为什么当你使用App\Exceptions\Handler::class直接绑定时，异常处理程序不会捕获异常。

Lumen：异常处理程序 - 不捕获QueryException或PDOException

1 个答案: