return [      
  
  /*      
  |--------------------------------------------------------------------------      
  | Default Queue Connection Name      
  |--------------------------------------------------------------------------      
  |      
  | Laravel's queue API supports an assortment of back-ends via a single      
  | API, giving you convenient access to each back-end using the same      
  | syntax for every one. Here you may define a default connection.      
  |      
  */      
  
  'default' => env('QUEUE_DRIVER', 'sync'),      
  
  /*      
  |--------------------------------------------------------------------------      
  | Queue Connections      
  |--------------------------------------------------------------------------      
  |      
  | Here you may configure the connection information for each server that      
  | is used by your application. A default configuration has been added      
  | for each back-end shipped with Laravel. You are free to add more.      
  |      
  | Drivers: "sync", "database", "beanstalkd", "sqs", "redis", "null"      
  |      
  */      
  
  'connections' => [      
  
    'sync' => [      
      'driver' => 'sync',      
    ],      
  
    'database' => [      
      'driver' => 'database',      
      'table' => 'jobs',      
      'queue' => 'default',      
      'retry_after' => 90,      
    ],      
  
    'beanstalkd' => [      
      'driver' => 'beanstalkd',      
      'host' => 'localhost',      
      'queue' => 'default',      
      'retry_after' => 90,      
    ],      
  
    'sqs' => [      
      'driver' => 'sqs',      
      'key' => env('SQS_KEY', 'your-public-key'),      
      'secret' => env('SQS_SECRET', 'your-secret-key'),      
      'prefix' => env('SQS_PREFIX', 'https://sqs.us-east-1.amazonaws.com/your-account-id'),      
      'queue' => env('SQS_QUEUE', 'your-queue-name'),      
      'region' => env('SQS_REGION', 'us-east-1'),      
    ],      
  
    'redis' => [      
      'driver' => 'redis',      
      'connection' => 'default',      
      'queue' => 'default',      
      'retry_after' => 90,      
      'block_for' => null,      
    ],      
  
  ],      
  
  /*      
  |--------------------------------------------------------------------------      
  | Failed Queue Jobs      
  |--------------------------------------------------------------------------      
  |      
  | These options configure the behavior of failed queue job logging so you      
  | can control which database and table are used to store the jobs that      
  | have failed. You may change them to any database / table you wish.      
  |      
  */      
  
  'failed' => [      
    'database' => env('DB_CONNECTION', 'mysql'),      
    'table' => 'failed_jobs',      
  ],      
  
];

$ php artisan queue:table     
$ php artisan migrate

$ php artisan make:job SendEmail

<"htmlcode">

<"htmlcode">

$ php artisan queue:work


队列的worker会一直运行，每当有任务被添加进数据库jobs表中，worker便会自动抓取出任务进行处理。当任务失败时，worker会重复执行任务，直至最大尝试次数（默认为255）。我们可以手动设置最大尝试次数：


$ php artisan queue:work --tries=3


当然，我们也可以手动设置任务的超时（默认90s，在config/queue.php中的retry_after设置）：


$ php artisan queue:work --timeout=30


最后，当没有任务的时候，我们可以设置一个睡眠时间，当worker在睡眠时间时，将不会处理任务：


$ php artisan queue:work --sleep=10


上面的命令意思是每当worker处理完所有任务后，会睡眠10s，然后才会再次检查任务队列
本文使用Laravel 5.6进行讲解
本文主要讲解了Laravel框架中队列和工作(Queues、Jobs)操作实例详解，更多关于Laravel框架的使用技巧请查看下面的相关链接