我正在尝试创建一个 Job，但是当我设置行时:

protected $param;

将数据从 __construct 传递到 handle() 我开始收到此错误:

Class not found

当我删除 protected $param 时；线，工作完美。但是我无法获取数据。我该怎么做才能解决这个问题？

<?php

namespace App\Jobs;

use App\Jobs\Job;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;

use App\Repositories\ProductRepository;

class ImportProducts extends Job implements ShouldQueue
{
    use InteractsWithQueue, SerializesModels;

    protected $param;


    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct($param)
    {
        $this->param = $param;
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        //$products = $this->param['products'];
        exit();

    }
}

这是完整的错误信息:

Whoops, looks like something went wrong.

1/1
ReflectionException in Container.php line 734:
Class does not exist    
in Container.php line 734
    at ReflectionClass->__construct('') in Container.php line 734
    at Container->build('', array()) in Container.php line 629
    at Container->make('', array()) in Application.php line 697
    at Application->make('') in Job.php line 154
    at Job->resolve('') in Job.php line 210
    at Job->failed() in SyncQueue.php line 153
    at SyncQueue->handleFailedJob(object(SyncJob)) in SyncQueue.php line 36
    at SyncQueue->push(object(ImportProducts), '', 'upload_products_file') in Queue.php line 40
    at Queue->pushOn('upload_products_file', object(ImportProducts)) in Dispatcher.php line 135
    at Dispatcher->pushCommandToQueue(object(SyncQueue), object(ImportProducts)) in Dispatcher.php line 117
    at Dispatcher->dispatchToQueue(object(ImportProducts)) in Dispatcher.php line 66
    at Dispatcher->dispatch(object(ImportProducts)) in DispatchesJobs.php line 17
    at Controller->dispatch(object(ImportProducts)) in ProductController.php line 656
    at ProductController->importProducts(object(Request))
    at call_user_func_array(array(object(ProductController), 'importProducts'), array(object(Request))) in Controller.php line 80
    at Controller->callAction('importProducts', array(object(Request))) in ControllerDispatcher.php line 146
    at ControllerDispatcher->call(object(ProductController), object(Route), 'importProducts') in ControllerDispatcher.php line 94
    at ControllerDispatcher->Illuminate\Routing\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
    at Pipeline->Illuminate\Routing\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
    at Pipeline->then(object(Closure)) in ControllerDispatcher.php line 96
    at ControllerDispatcher->callWithinStack(object(ProductController), object(Route), object(Request), 'importProducts') in ControllerDispatcher.php line 54
    at ControllerDispatcher->dispatch(object(Route), object(Request), 'App\Http\Controllers\ProductController', 'importProducts') in Route.php line 174
    at Route->runController(object(Request)) in Route.php line 140
    at Route->run(object(Request)) in Router.php line 724
    at Router->Illuminate\Routing\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in VerifyCsrfToken.php line 64
    at VerifyCsrfToken->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(VerifyCsrfToken), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in ShareErrorsFromSession.php line 49
    at ShareErrorsFromSession->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(ShareErrorsFromSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in StartSession.php line 64
    at StartSession->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(StartSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in AddQueuedCookiesToResponse.php line 37
    at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(AddQueuedCookiesToResponse), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in EncryptCookies.php line 59
    at EncryptCookies->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(EncryptCookies), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
    at Pipeline->then(object(Closure)) in Router.php line 726
    at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 699
    at Router->dispatchToRoute(object(Request)) in Router.php line 675
    at Router->dispatch(object(Request)) in Kernel.php line 246
    at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in CheckForMaintenanceMode.php line 44
    at CheckForMaintenanceMode->handle(object(Request), object(Closure))
    at call_user_func_array(array(object(CheckForMaintenanceMode), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
    at Pipeline->Illuminate\Routing\{closure}(object(Request))
    at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
    at Pipeline->then(object(Closure)) in Kernel.php line 132
    at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 99
    at Kernel->handle(object(Request)) in index.php line 54

最佳答案

当作业使用 SerializesModels 特征时，期望构造函数中有一个 Eloquent 模型。

你在构造函数和 Laravel 中给出了与 Eloquent 模型不同的东西，因为特征 SerializesModels 试图从 $param 的类中重建 Eloquent 对象，但它找不到它。

尝试从作业的特征中删除 SerializesModels。

关于php - 在具有 protected 变量的作业中找不到类，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40463402/