zh_food/app/Jobs/PrintOrderJob.php

<?php

namespace App\Jobs;

use App\Models\ShopPrinter;
use App\Servers\printer\PrinterServer;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldBeUnique;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;

class PrintOrderJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    private $order_id;
    private $shop_id;
    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct($order_id, $shop_id)
    {
        $this->order_id = $order_id;
        $this->shop_id = $shop_id;
    }

    /**
     * Execute the job.
     *
     */
    public function handle()
    {
        $order_id = $this->order_id;
        var_dump('外卖订单打印消息队列处理',$order_id);
        $shop_id = $this->shop_id;
        //获取商家打印机
        $printer = ShopPrinter::where('shop_id',$shop_id)->where('is_del',0)->get();
        foreach ($printer as $value){
            $res = PrinterServer::creatServer()->sendPrints($value->{'brand_id'},$value->{'sn'},$order_id);
            var_dump($res);
        }
        return true;
    }
}