Laravel适合Api的异常处理响应格式 Laravel怎样实现适合Api的异常处理响应格式

public function render($request, Exception $e)
{
 if (method_exists($e, 'render') && $response = $e->render($request)) {
 return Router::toResponse($request, $response);
 } elseif ($e instanceof Responsable) {
 return $e->toResponse($request);
 }

 $e = $this->prepareException($e);

 if ($e instanceof HttpResponseException) {
 return $e->getResponse();
 } elseif ($e instanceof AuthenticationException) {
 return $this->unauthenticated($request, $e);
 } elseif ($e instanceof ValidationException) {
 return $this->convertValidationExceptionToResponse($e, $request);
 }

 return $request->expectsJson()
   ? $this->prepareJsonResponse($request, $e)
   : $this->prepareResponse($request, $e);
}

protected function prepareException(Exception $e)
{
 if ($e instanceof ModelNotFoundException) {
 $e = new NotFoundHttpException($e->getMessage(), $e);
 } elseif ($e instanceof AuthorizationException) {
 $e = new AccessDeniedHttpException($e->getMessage(), $e);
 } elseif ($e instanceof TokenMismatchException) {
 $e = new HttpException(419, $e->getMessage(), $e);
 }

 return $e;
}

protected function unauthenticated($request, AuthenticationException $exception)
{
 return $request->expectsJson()
    ? response()->json(['message' => $exception->getMessage()], 401)
    : redirect()->guest($exception->redirectTo() ?? route('login'));
}

protected function unauthenticated($request, AuthenticationException $exception)
{
 return $request->expectsJson()
  ? response()->json([
   'code' => 0,
   'data' => $exception->getMessage(),
  ], 401)
  : redirect()->guest($exception->redirectTo() ?? route('login'));
}

protected function convertValidationExceptionToResponse(ValidationException $e, $request)
{
 if ($e->response) {
  return $e->response;
 }

 return $request->expectsJson()
    ? $this->invalidJson($request, $e)
    : $this->invalid($request, $e);
}

protected function invalidJson($request, ValidationException $exception)
{
 return response()->json([
  'message' => $exception->getMessage(),
  'errors' => $exception->errors(),
 ], $exception->status);
}

protected function invalidJson($request, ValidationException $exception)
{
 return response()->json([
  'code' => 0,
  'data' => $exception->errors(),
 ], $exception->status);
}

protected function prepareJsonResponse($request, Exception $e)
{
 return new JsonResponse(
  $this->convertExceptionToArray($e),
  $this->isHttpException($e) ? $e->getStatusCode() : 500,
  $this->isHttpException($e) ? $e->getHeaders() : [],
  JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES
 );
}

protected function convertExceptionToArray(Exception $e)
{
 return config('app.debug') ? [
  'message' => $e->getMessage(),
  'exception' => get_class($e),
  'file' => $e->getFile(),
  'line' => $e->getLine(),
  'trace' => collect($e->getTrace())->map(function ($trace) {
   return Arr::except($trace, ['args']);
  })->all(),
 ] : [
  'message' => $this->isHttpException($e) ? $e->getMessage() : 'Server Error',
 ];
}

protected function convertExceptionToArray(Exception $e)
{
 return config('app.debug') ? [
  'code' => 0,
  'data' => $e->getMessage(),
  'exception' => get_class($e),
  'file' => $e->getFile(),
  'line' => $e->getLine(),
  'trace' => collect($e->getTrace())->map(function ($trace) {
   return Arr::except($trace, ['args']);
  })->all(),
 ] : [
  'code' => 0,
  'data' => $this->isHttpException($e) ? $e->getMessage() : 'Server Error',
 ];
}

public function expectsJson()
{
 return ($this->ajax() && ! $this->pjax() && $this->acceptsAnyContentType()) || $this->wantsJson();
}

<?php

namespace App\Http\Middleware;

use Closure;

class AcceptHeader
{
 public function handle($request, Closure $next)
 {
  $request->headers->set('Accept', 'application/json');

  return $next($request);
 }
}

protected $middlewareGroups = [
 'web' => [
  .
  .
  .
 'api' => [
  \App\Http\Middleware\AcceptHeader::class,
  'throttle:60,1',
  'bindings',
 ],
];