在 Lumen Jobs 中发送邮件时出现 BindingResolutionException

BindingResolutionException when sending mails in Lumen Jobs

我发送同步邮件没有问题,但是使用 Mail::queue 在队列上执行的邮件会抛出下一个错误:

Illuminate\Contracts\Container\BindingResolutionException: Target [Swift_Transport] is not instantiable while building [Illuminate\Mail\Mailer, Swift_Mailer]. in /var/www/myapp.dev/vendor/illuminate/container/Container.php:804

当我同步发送电子邮件时,一切都配置正确

在 Lumen Jobs 中发送电子邮件遇到了很多麻烦之后,我将电子邮件发送封装在一个 Job 中,它与这样的邮件一起工作:

MailDispatcher.php

<?php

namespace App\Jobs;

use Illuminate\Contracts\Mail\Mailable;
use Illuminate\Support\Facades\Mail;

class MailDispatcher extends Job {

    public $mail;

    public function __construct(Mailable $mail) {
        $this->mail = $mail;
    }

    public function handle() {
        Mail::send($this->mail);
    }
}

然后当我想排队邮件时...

$mail = new MyMailableMail($user);
dispatch(new MailDispatcher($mail));

它工作正常