先设置上传文件的路由：

Route::post('upload/images'['as'=>'uploadImages','uses'=>'UploadController@uploadImages']);  
 Route::post('upload/multiUpload'['as'=>'multiUpload','uses'=>'UploadController@multiUpload']);

再设置uploads磁盘地址，之后储存文件会使用到。config / filesystem : disks

 'disks' => [
 
        'local' => [
            'driver' => 'local',
            'root' => storage_path('app'),
        ],
 
        'uploads'=>[
            'driver'=>'local',
            'root'=>public_path('uploads/'),
        ]
    ],

最后UploadController定义上传函数(使用Storage的disk方法来访问uploads磁盘，就是前面filesystem文件里设置的)

putFile方法：管理文件到指定的存储位置，例为自动生成文件名，也可以手动设置 ('20190705', $file，'test.png')

 //上传单张图
 public function uploadImages(Request $request)
    {
        if ($request->isMethod('post')) {
            $file = $request->file('file');
            if($file->isValid()){
                $path = Storage::disk('uploads')->putFile(date('Ymd') , $file);
                if($path) {
                    return ['code' => 0 , 'msg' => '上传成功' , 'data' => $path];
                }
                else {
                    return ['code' => 400 , 'msg' => '上传失败'];
                }
            }
        } else {
            return ['code' => 400, 'msg' => '非法请求'];
        }
    }
//上传多张图
 public function multiUpload(Request $request)
    {
        if($request->method('post')){
            $files = $request->allFiles();
            if(is_array($files)){
                foreach($files as $file){
                    $path = Storage::disk('uploads')->putFile(date('Ymd') , $file);
                }
                if( $path ) {
                    return ['code' => 0 , 'msg' => '上传成功' , 'data' => $path];
                }
                else {
                    return ['code' => 400 , 'msg' => '上传失败'];
                }
            }
        }else{
            return ['code' => 400, 'msg' => '非法请求'];
        }
    }