.net MVC+Bootstrap下使用localResizeIMG上传图片

<div class="form-group">
 <label class="col-sm-6 control-label" for="inputfile">维修照片上传</label>
 <div class="col-sm-6 ">
 <div style="background:url(../../fonts/add.png) no-repeat;width:151px;height:150px;float:left;" id="div1">
 <input type="file" accept="image/*" id="file" class="selectinput" style="width:151px;height:150px;opacity:.01">
 </div>

 </div>
 </div>

$("#file").localResizeIMG({
 width: 400,
 //height: 200,
 quality: 1,
 success: function (result) {
 var img = new Image();
 img.src = result.base64;

 //$("body").append(img);
 $("#odd").append(img); //呈现图像(拍照結果)
 $.ajax({
 url: "/Home/UploadImg",
 type: "POST",
 data: { "formFile": result.clearBase64, "RepairNum": $('#RepairNum').val()},
 dataType: "HTML",
 timeout: 1000,
 error: function () {
 alert("ajax Error");
 },
 success: function (data) {
 //alert("Uploads success~")
 }
 });
 }
 });

[HttpPost]
 public ActionResult UploadImg()
 {
 var file = Request["formFile"];
 var id = Request["RepairNum"];

 string fileName = "1.jpeg";
 string filePath = Server.MapPath("~/Upload/" + fileName);

 try
 {
 Base64StringToImage(file, filePath);
 //upImg.SaveAs(filePhysicalPath);
 //Session["ImgPath"] = path;
 //Base64StringToImage(file,);
 return Content("上传成功");
 }
 catch
 {
 return Content("上传异常 ！");

 }
 }

 protected void Base64StringToImage(string strbase64, string filepath)
 {
 try
 {
 byte[] arr = Convert.FromBase64String(strbase64);
 MemoryStream ms = new MemoryStream(arr);
 System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(ms);
 //bmp.Dispose(); 
 bmp.Save(filepath, System.Drawing.Imaging.ImageFormat.Jpeg);
 ms.Close();
 }
 catch (Exception ex)
 {
 }
 }