Laravelのデフォルトはログに書き込まれた例外をキャッチしなかったであろう。例外は、クラス内の底部で生成された場合は、書き込みログ情報は、特に詳細にはありません。これは異常なログによって引き起こされる場合、ログ・スタックは、まだわかりません参照してください。
以下は、次のように応答がスローされる可能下例外ログです：
[2019-10-18 09:51:46] local.ERROR: The Response content must be a string or object implementing __toString(), "boolean" given. {"exception":"[object] (UnexpectedValueException(code: 0): The Response content must be a string or object implementing __toString(), \"boolean\" given. at D:\\WWW\\bohua\\vendor\\symfony\\http-foundation\\Response.php:399)
[stacktrace]
#0 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Http\\Response.php(45): Symfony\\Component\\HttpFoundation\\Response->setContent(true)
#1 D:\\WWW\\bohua\\vendor\\symfony\\http-foundation\\Response.php(206): Illuminate\\Http\\Response->setContent(true)
#2 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(724): Symfony\\Component\\HttpFoundation\\Response->__construct(true)
#3 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(698): Illuminate\\Routing\\Router::toResponse(Object(Illuminate\\Http\\Request), true)
#4 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(658): Illuminate\\Routing\\Router->prepareResponse(Object(Illuminate\\Http\\Request), true)
#5 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#6 D:\\WWW\\bohua\\app\\Http\\Middleware\\AuthUser.php(39): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#7 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): App\\Http\\Middleware\\AuthUser->handle(Object(Illuminate\\Http\\Request), Object(Closure), 'check')
#8 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#9 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Middleware\\SubstituteBindings.php(41): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#10 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#11 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#12 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#13 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(660): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#14 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(635): Illuminate\\Routing\\Router->runRouteWithinStack(Object(Illuminate\\Routing\\Route), Object(Illuminate\\Http\\Request))
#15 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(601): Illuminate\\Routing\\Router->runRoute(Object(Illuminate\\Http\\Request), Object(Illuminate\\Routing\\Route))
#16 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(590): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))
#17 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(176): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))
#18 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(Object(Illuminate\\Http\\Request))
#19 D:\\WWW\\bohua\\vendor\\fideloper\\proxy\\src\\TrustProxies.php(56): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#20 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Fideloper\\Proxy\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#21 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#22 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#23 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#24 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#25 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#26 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#27 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#28 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize.php(27): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#29 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#30 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#31 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode.php(46): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#32 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#33 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#34 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#35 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(151): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#36 D:\\WWW\\bohua\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(116): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Illuminate\\Http\\Request))
#37 D:\\WWW\\bohua\\public\\index.php(58): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))
#38 {main}
"}
このログから、私は、コマンドラインのコントローラ、またはこれを原因となった要求を、原因がわかりませんか？
応答内容が文字列であるか、応答の内容が文字列や__toStringメソッドを実装するオブジェクトでなければならない（）__toStringを実装するオブジェクト必要があります。その理由は、これにコントローラリターン真の原因は単にによるものでした。
最後にブート方法のAppServiceProviderクラス、要求は唯一の例外の原因を見つけるために、ログに書き込まれます。以下を達成するために：
if (env("APP_DEBUG")) {
/**
* debug 默认记录请求记录
*/
if (app()->runningInConsole() == false) {
$requestData = \Request::input();
unset($requestData['pathinfo']);
\Log::info(\Request::ip() . ' ' . \Request::method() . ' ' . \Request::getHttpHost() . \Request::getRequestUri() . ' ' . json_encode($requestData, JSON_UNESCAPED_UNICODE));
}
}