模型：
<?phpnamespace App\Mail;use Illuminate\Bus\Queueable;use Illuminate\Contracts\Queue\ShouldQueue;use Illuminate\Mail\Mailable;use Illuminate\Queue\SerializesModels;class SendMail extends Mailable implements ShouldQueue{use Queueable, SerializesModels;/*** Create a new message instance.** @return void*/private $data;public function __construct($data){$this->data = $data;}/*** Build the message.** @return $this*/public function build(){return $this->view('mon')->subject('测试邮件')->attach(storage_path($this->data['file_path']), ['as' => $this->data['file_name']]);}}
控制器：
public function sendMail(){$to = '15033245576@';$file_name = '语言学资料.pdf';$file_name = "=?UTF-8?B?".base64_encode($file_name)."?=";$info['file_path'] = 'test.pdf';$info['file_name'] = $file_name;$mail = (new SendMail($info))->onQueue('mail');Mail::to($to)->queue($mail);if(count(Mail::failures()) < 1){return '发送邮件成功，请查收！';}else{return '发送邮件失败，请重试！';}}
注意：改代码后需要执行一下命令，否则有可能发送邮件失败
！！！发邮件前需要缓存清理（进入虚拟机，执行一下操作）：
重启队列
php artisan queue:restart
清楚缓存
php artisan config:cache
php artisan cache:clear
php artisan route:clear
