我正在处理一个队列作业，它从其他 API 导入一些数据并存储它们。

在我的 Controller 中，当我说 $this->dispatchNow(new ImportPatentsJob($numbers, $count, $invention_id, $redisId)); 时，它工作正常并且流程通过没有失败。

但是当我将其更改为 dispatch 并将作业排队，然后通过队列工作程序运行它时，它失败了。我的工作看起来像:

protected $numbers;
protected $count;
protected $invention_id;
protected $redisId;

/**
 * Create a new job instance.
 *
 * @return void
 */
public function __construct($numbers, $count, $invention_id, $redisId)
{
    $this->numbers = $numbers;
    $this->count = $count;
    $this->invention_id = $invention_id;
    $this->redisId = $redisId;

    $this->onQueue('import');
    $this->setUpClients();
}

protected function setUpClients()
{
    $this->imageClient = new Client([
        'base_uri' => 'some-uri',
        'headers'  => ['API-TOKEN' => env('API_TOKEN')],
    ]);

    $this->dataClient = new Client([
        'base_uri' => 'some-uri',
        'headers'  => ['API-TOKEN' => env('API_TOKEN')],
    ]);

    $this->familyClient = new Client([
        'base_uri' => 'some-uri',
        'headers'  => ['API-TOKEN' => env('API_TOKEN')],
    ]);
}

/**
 * Execute the job.
 *
 * @return void
 */
public function handle()
{
    $folder_id = $this->createFolder();

    $currentCount = 0;

    foreach ($this->numbers as $number) {

        $currentCount++;

        Redis::executeRaw(['SET', 'importlog:' . $this->redisId, 'Import ' . $number['number']]);

        try {
            $response = $this->dataClient->get($number['number']); // this is line 85 where the exception occurs
        } catch (\Exception $e) {
            Redis::executeRaw(['SET', 'importlog:' . $this->redisId . ':fail:' . $number['number'], 'Could not import']);
            Log::info($e);
            continue;
        }

        $data = $this->decodeData($response);
        $patent_id = $this->createPatentDocument($data, $folder_id);

        $this->createPatentAddresses($data, $patent_id);
        $this->createPatentApplications($data, $patent_id);
        $this->createPatentPriorities($data, $patent_id);
        $this->createPatentCitations($data, $patent_id);
        $this->createPatentTaxonomies($data, $patent_id);
        $this->createPatentTitles($data, $patent_id);
        $this->createPatentAbstracts($data, $patent_id);
        $this->createPatentClaims($data, $patent_id);
        $this->createPatentDescriptions($data, $patent_id);

        $this->createInventionResults($this->invention_id, $patent_id, $number['position']);

        try {
            $response = $this->imageClient->get($data['bibliographic']['root']['family']);
            $blob = $this->fetchImageBlob($response, $number['number']);
            if ($blob) {
                $this->createFile($blob, $patent_id);
            }
        } catch (\Exception $e) {
            Redis::executeRaw([
                'SET',
                'importlog:' . $this->redisId . ':fail:image:' . $number['number'],
                'Patent number: ' . $number['number'] . '; Family number: ' . $data['bibliographic']['root']['family'],
            ]);
        }

        Redis::executeRaw([
            'SET',
            'importlog:' . $this->redisId . ':progress',
            "Import progress: " . $currentCount . '/' . $this->count . '(' . ($currentCount / $this->count * 100) . '%)'
        ]);
    }
}

它在我在 try catch 语句中说 Log::info($e) 的地方失败了。异常内容如下:

[2016-08-11 07:01:11] local.INFO: exception 'ErrorException' with message 'Undefined property: Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob::$dataClient' in /Users/rohan0793/Code/tenant-application/tenant-package/src/Jobs/ImportPatentsJob.php:85
Stack trace:
#0 /Users/rohan0793/Code/tenant-application/tenant-package/src/Jobs/ImportPatentsJob.php(85): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8, 'Undefined prope...', '/Users/rohan079...', 85, Array)
#1 [internal function]: Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob->handle()
#2 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Container/Container.php(507): call_user_func_array(Array, Array)
#3 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Bus/Dispatcher.php(82): Illuminate\Container\Container->call(Array)
#4 [internal function]: Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob))
#5 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(150): call_user_func(Object(Closure), Object(Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob))
#6 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob))
#7 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): call_user_func(Object(Closure), Object(Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob))
#8 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Bus/Dispatcher.php(83): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#9 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/CallQueuedHandler.php(41): Illuminate\Bus\Dispatcher->dispatchNow(Object(Uppdragshuset\AO\Tenant\Jobs\ImportPatentsJob))
#10 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Jobs/Job.php(130): Illuminate\Queue\CallQueuedHandler->call(Object(Illuminate\Queue\Jobs\RedisJob), Array)
#11 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Jobs/RedisJob.php(50): Illuminate\Queue\Jobs\Job->resolveAndFire(Array)
#12 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Worker.php(213): Illuminate\Queue\Jobs\RedisJob->fire()
#13 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Worker.php(157): Illuminate\Queue\Worker->process('redis', Object(Illuminate\Queue\Jobs\RedisJob), 0, 0)
#14 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Console/WorkCommand.php(126): Illuminate\Queue\Worker->pop(NULL, 'import', 0, 3, 0)
#15 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Queue/Console/WorkCommand.php(79): Illuminate\Queue\Console\WorkCommand->runWorker(NULL, 'import', 0, 128, false)
#16 [internal function]: Illuminate\Queue\Console\WorkCommand->fire()
#17 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Container/Container.php(507): call_user_func_array(Array, Array)
#18 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Console/Command.php(169): Illuminate\Container\Container->call(Array)
#19 /Users/rohan0793/Code/tenant-application/vendor/symfony/console/Command/Command.php(256): Illuminate\Console\Command->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#20 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Console/Command.php(155): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#21 /Users/rohan0793/Code/tenant-application/vendor/symfony/console/Application.php(791): Illuminate\Console\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#22 /Users/rohan0793/Code/tenant-application/vendor/symfony/console/Application.php(186): Symfony\Component\Console\Application->doRunCommand(Object(Illuminate\Queue\Console\WorkCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#23 /Users/rohan0793/Code/tenant-application/vendor/symfony/console/Application.php(117): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#24 /Users/rohan0793/Code/tenant-application/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(107): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#25 /Users/rohan0793/Code/tenant-application/artisan(36): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#26 {main}  

它说 dataClient 属性未定义，但我不明白为什么。它非常明确，并且在作业未排队时运行良好。我做错了什么？

更新

所以我意识到我忘记为客户声明 protected 属性。但是我一这样做，就遇到了这个错误。该作业不再排队，但异常显示:不允许“Closure”序列化

我假设我无法以某种方式序列化和存储 Guzzle 客户端

最佳答案

所以 Guzzle 闭包没有被序列化，因为它不能序列化闭包。这就是让我失望的原因。

Exception: Serialization of 'Closure' is not allowed

如果您有同样的问题，这可能是一个很好的起点。

我用更简单的方法解决了它。我只是将客户端的声明移到句柄方法中并使它们成为局部变量，在这种情况下它们不必被序列化，只需坐在那里直到某些工作使用它们。

关于php - Laravel 队列作业失败说 Undefined property 但作业在没有队列的情况下运行正常？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38889605/