BaoMa/app/Admin/Controllers/Api/ApiController.php

<?php

namespace App\Admin\Controllers\Api;

use Encore\Admin\Controllers\AdminController;

class ApiController extends AdminController
{
    /**
     * 后台上传图片
     * @return string
     */

    public function upload()
    {
        $url = "error|服务器端错误";

        foreach (request()->file() as $file) {
            $url = "upload/images/".uniqid().rand(9000,100000).'.'.$file->getClientOriginalExtension();
            file_put_contents($url,file_get_contents($file->getRealPath()));
        }

        return env('APP_URL').'/'.$url;
    }

}