lianjie_admin/app/Admin/Controllers/v3/CustomFileController.php

<?php

namespace App\Admin\Controllers\v3;

use Dcat\Admin\Traits\HasUploadedFile;

class CustomFileController
{
    /**
     * 自定义上传
     */
    use HasUploadedFile;

    public function handle()
    {
        $disk = $this->disk('oss');

        // 判断是否是删除文件请求
        if ($this->isDeleteRequest()) {
            // 删除文件并响应
            return $this->deleteFileAndResponse($disk);
        }

        // 获取上传的文件
        $file = $this->file();
        var_dump($file);
dd($file);
        // 获取上传的字段名称
        $column = $this->uploader()->upload_column;

        $fileName = md5(time());

        $dir = 'mp_images';
        $newName = date('Y-m-d').$fileName.'.'.$file->getClientOriginalExtension();

        $result = $disk->putFileAs($dir, $file, $newName);

        $path = "{$dir}/$newName";

        return $result
            ? $this->responseUploaded($path, $disk->url($path))
            : $this->responseErrorMessage('文件上传失败');
    }
}