<button type="button" class="layui-btn" id="test1">

        <i class="layui-icon"></i>选择图片

    </button>

    <button type="button" class="layui-btn" id="btnUpload">开始上传</button>

    <img id="myPic" src="" width="500" />

  <script>

        layui.use(['upload', 'jquery'], function () {

            var upload = layui.upload;

            var $ = layui.$;

            //执行实例

            var uploadInst = upload.render({

                elem: '#test1'                //绑定元素

                , url: '/Home/UploadImg'      //上传接口

                //*********************传输限制

                , size: 100                   //传输大小100k

                , exts: 'jpg|png|gif|'        //可传输文件的后缀

                , accept: 'file'              //video audio images

                //****************传输操作相关设置

                , data: { Parm1: "hello", Parm2: "world" }    //额外传输的参数

                , headers{token:'sasasasa'}                   //额外添加的请求头

                , auto: false                                 //自动上传,默认是打开的

                , bindAction: '#btnUpload'                    //auto为false时，点击触发上传

                , multiple: false                             //多文件上传

                //, number: 100                               //multiple:true时有效

                , done: function (res) {                      //传输完成的回调

                    console.log(res.IsSuccess)

                    console.log(res.Msg)

                    $('#myPic').attr("src", res.Src);

                }

                , error: function () {                         //传输失败的回调

                    //请求异常回调

                }

            });

        });

    </script>

       public ActionResult UploadImg(string Parm1,string Parm2)

        {

            if (Request.Files.Count>)

            {

                //p1,p2没什么用，只是为了证明前端中额外参数data{parm1,parm2}成功传到后台了

                string p1 = Parm1;

                string p2 = Parm2;

                //获取后缀名

                string ext = Path.GetExtension(Request.Files[].FileName);

                //获取/upload/文件夹的物理路径

                string mapPath = Server.MapPath(Request.ApplicationPath);

                //通过上传时间来创建文件夹，每天的放在一个文件夹中

                string dir = mapPath + "upload/"+DateTime.Now.ToString("yyyy-MM-dd");

                DirectoryInfo dirInfo = Directory.CreateDirectory(dir);

                //在服务器存储文件，文件名为一个GUID

                string fullPath = dir + "/" + Guid.NewGuid().ToString()+ ext;

                Request.Files[].SaveAs(fullPath);

                //获取图片的相对路径

                string imgSrc = fullPath.Replace(mapPath, "/");

                return Json(new { IsSuccess = , Msg = "上传成功", Src = imgSrc });

            }

            else

            {

                return Json(new { IsSuccess = , Msg = "上传失败", Src = "" });

            }

        }