baoshi-was/app/Jobs/TestJob.php

<?php

namespace App\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\DB;

class TestJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable;

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

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        DB::select("call stu_out('{$this->str}',@str)");
        echo json_encode(DB::selectOne("select @str"));
    }
}