MVC JQuery 上传插件uploadify

Uploadify是来自国外的一款优秀jQuery插件，主要功能是批量上传文件，此插件在项目中已被广泛之用，但是也发现不少问题。话不多说，看源码。

jq:

<script>

jQuery(function () {
        $('#PickImage').uploadify({
            'swf': '/Content/uploadify.swf', 'buttonText': '选择图片并上传',
            'uploader': '/ActiveManage/UploadImage?imgpath=' + $("#picpath").val(),
            'fileTypeDesc': '图片类型',
            'fileTypeExts': '*.jpg;*.jpeg;*.png',
            "formData": { "folder": "/product/" },
            onUploadSuccess: function (localFileObject, serverData, receivedResponse) {
                //console.log(serverData)
                if (typeof (serverData) == "string")
                    serverData = JSON.parse(serverData);
                $("#HeadImgurl").val(serverData.ImagePath);
                $("#Rimg").attr("src", serverData.ImagePath);
                $("#picpath").val(serverData.ImagePath);
                //this.uploader.ImagePath = '/ActiveManage/UploadImage?imgpath=' + $("#picpath").val();
                $('#PickImage').uploadify('settings', 'uploader', '/ActiveManage/UploadImage?imgpath=' + $("#picpath").val())
            },
            onUploadComplete: function (fileObj) {
            }
        });
    });
    </script>

html :

<div class="form-group" style="margin-left:10px;">
<img class="img-rounded" id="Rimg" width="130" height="130" src="/UploadPic/selectpic.png" />
</div>
<div class="form-group" style=" margin-left:10px;">
<input class="form-control" type="file" id="PickImage" name="PickImage" value="浏览图片" />
<input type="text" id="picpath" name="picpath" style="display:none;" />
</div>

controller:

public ActionResult UploadImage(string imgpath)
        {            
            if (System.IO.File.Exists(imgpath))
            {
                System.IO.File.Delete(imgpath);
            }
            Response.ContentType = "text/plain";
            Response.Charset = "utf-8";
            HttpPostedFileBase file = Request.Files["Filedata"];
            string path = ConfigurationManager.AppSettings["Domain"].ToString(); //填写服务器域名            
            string timenow = DateTime.Now.ToString("yyyyMMdd");
            string basePath = "/UploadPic/" + timenow + "/";
            string uploadPath = Server.MapPath(basePath); //本地路径
            if (file != null)
            {
                if (!Directory.Exists(uploadPath))
                {
                    Directory.CreateDirectory(uploadPath);
                }
                string fileName = file.FileName;
                string ext = fileName.Substring(fileName.LastIndexOf("."));
                fileName = DateTime.Now.Ticks + ext;
                file.SaveAs(uploadPath + fileName);
                //服务器上传
                //return Json(new { ImagePath = string.Format("{0}{1}{2}", path, basePath, fileName) });
                //本地上传
                return Json(new { ImagePath = string.Format("{0}{1}", basePath, fileName) });
            }
            else
            {
                return Json(new { error = 0 });
            }
        }