当连接到Azure Web Job时，查询数据库的后台任务无法工作

我在Azure上使用WebJobs运行Laravel后台任务时遇到了一个奇怪的问题。

我有这个代码在我的Laravel ExpireContactsFromDatabase命令的handle()方法

public function handle()
    {
    * Update contacts that are old and past their expiry date but that have not been deleted
    * Set their deleted at to the current timestamp
    */
        $contact = Contact::where('expiry_date', '<=', date('Y-m-d H:i:s'))
            ->whereNull('deleted_at')
            ->update(array('deleted_at' => date('Y-m-d H:i:s')));
        Log::info("200" . " " . "Contacts clearing executed successfully, see response from db :::: " . serialize($contact));
    }

我已经成功在app'Console'Kernel.php中注册了这个命令，如下所示:

class Kernel extends ConsoleKernel
{
    /**
     * The Artisan commands provided by your application.
     *
     * @var array
     */
    protected $commands = [
        Inspire::class,
        ExpireContactsFromDatabase::class,
    ];
    /**
     * Define the application's command schedule.
     *
     * @param  'Illuminate'Console'Scheduling'Schedule $schedule
     * @return void
     */
    protected function schedule(Schedule $schedule)
    {
        $schedule->command('inspire')
            ->hourly();
        $schedule->command('expire:contacts')
            ->everyMinute()
            ->sendOutputTo('expired_contacts_results_dbresponse.txt');
    }
}

这在我的本地开发机器上运行得很好。我在我的笔记本电脑上配置了一个cron作业，它执行了这个命令，并按照预期使旧的联系人失效。

当我将应用程序从localhost迁移到Ms Azure时，问题出现了。我将WebJob配置为连续运行，为它提供了artisan的路径，并发布了调度运行。我使用.bat文件来完成此操作，如下所示:

php D:'home'site'wwwroot'artisan schedule:run > D:'home'site'wwwroot'expired_contacts_results_confirmation.txt

PHP在我的web应用程序路径上，所以不用担心。

挑战是当命令执行/当我运行php artisan schedule::run并检查我的日志文件时，我看到数据库(登录到expired_contacts_results_dbresponse.txt)的响应如下:

[2016-10-20 12:21:43] local.ERROR: exception 'PDOException' with message 'SQLSTATE[HY000] [2002] An attempt was made to access a socket in a way forbidden by its access permissions.
' in D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Connectors'Connector.php:55 

我的猜测是laravel连接数据库的方式在这种情况下有问题。然而，我的应用程序的其他组件使用相同的连接代码，他们工作得很好，所以我很困惑。在互联网上搜索这个问题的精确解决方案没有奏效。

我在D1共享主机计划的Azure上运行我的应用程序，并使用方便的Azure MySQLInApp数据库作为我的数据库存储。

这是我的完整堆栈跟踪。

Stack trace:
#0 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Connectors'Connector.php(55): PDO->__construct('mysql:host=;dbn...', '', '', Array)
#1 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Connectors'MySqlConnector.php(22): Illuminate'Database'Connectors'Connector->createConnection('mysql:host=;dbn...', Array, Array)
#2 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Connectors'ConnectionFactory.php(60): Illuminate'Database'Connectors'MySqlConnector->connect(Array)
#3 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Connectors'ConnectionFactory.php(49): Illuminate'Database'Connectors'ConnectionFactory->createSingleConnection(Array)
#4 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'DatabaseManager.php(175): Illuminate'Database'Connectors'ConnectionFactory->make(Array, 'mysql')
#5 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'DatabaseManager.php(67): Illuminate'Database'DatabaseManager->makeConnection('mysql')
#6 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(3224): Illuminate'Database'DatabaseManager->connection(NULL)
#7 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(3190): Illuminate'Database'Eloquent'Model::resolveConnection(NULL)
#8 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(1870): Illuminate'Database'Eloquent'Model->getConnection()
#9 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(1813): Illuminate'Database'Eloquent'Model->newBaseQueryBuilder()
#10 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(1787): Illuminate'Database'Eloquent'Model->newQueryWithoutScopes()
#11 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(3442): Illuminate'Database'Eloquent'Model->newQuery()
#12 [internal function]: Illuminate'Database'Eloquent'Model->__call('where', Array)
#13 [internal function]: App'Contact->where('expiry_date', '<=', '2016-10-20 12:2...')
#14 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php(3458): call_user_func_array(Array, Array)
#15 D:'home'site'wwwroot'app'Console'Commands'ExpireContactsFromDatabase.php(53): Illuminate'Database'Eloquent'Model::__callStatic('where', Array)
#16 D:'home'site'wwwroot'app'Console'Commands'ExpireContactsFromDatabase.php(53): App'Contact::where('expiry_date', '<=', '2016-10-20 12:2...')
#17 [internal function]: App'Console'Commands'ExpireContactsFromDatabase->handle()
#18 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Container'Container.php(507): call_user_func_array(Array, Array)
#19 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Console'Command.php(150): Illuminate'Container'Container->call(Array)
#20 D:'home'site'wwwroot'vendor'symfony'console'Command'Command.php(256): Illuminate'Console'Command->execute(Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))
#21 D:'home'site'wwwroot'vendor'laravel'framework'src'Illuminate'Console'Command.php(136): Symfony'Component'Console'Command'Command->run(Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))
#22 D:'home'site'wwwroot'vendor'symfony'console'Application.php(846): Illuminate'Console'Command->run(Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))
#23 D:'home'site'wwwroot'vendor'symfony'console'Application.php(190): Symfony'Component'Console'Application->doRunCommand(Object(App'Console'Commands'ExpireContactsFromDatabase), Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))
#24 D:'home'site'wwwroot'vendor'symfony'console'Application.php(121): Symfony'Component'Console'Application->doRun(Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))
#25 D:'home'site'wwwroot'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))
#26 D:'home'site'wwwroot'artisan(36): Illuminate'Foundation'Console'Kernel->handle(Object(Symfony'Component'Console'Input'ArgvInput), Object(Symfony'Component'Console'Output'ConsoleOutput))

我将非常感谢任何帮助。