A generic error occurred in GDI+. 上传图片报错

代码就不说了，因为本地测试 ok,

服务端 就不行 ，服务器 环境 阿里云 win2008 r2  64 位

原因 是我没有这是 文件加权限 ：

左边 的 少了 权限~

代码 ：含义是 网络图片 裁剪 保存 到本地 ，本地 再 存储 到 七牛 云存储。

  public static string Crop(string ImgUrl, int Width, int Height, int X, int Y)

    {

      string path = "C:\\DescripttionImg\\";

      string Temp = "";

      string path_Temp = "";

      try

      {



        if (ImgUrl.IndexOf('?') > 0)

        {

          Temp = ImgUrl.Remove(ImgUrl.IndexOf('?'));

          Temp = "Head_" + Temp.Substring(Temp.LastIndexOf('/') + 1);

        }

        else

        {

          Temp = "Head_" + ImgUrl.Substring(ImgUrl.LastIndexOf('/') + 1);

        }





        WebRequest WebReq = WebRequest.Create(ImgUrl);

        WebReq.Method = "GET";

        var img = System.Drawing.Image.FromStream(WebReq.GetResponse().GetResponseStream());

        using (System.Drawing.Image OriginalImage = img)

        {

          using (Bitmap bmp = new Bitmap(Width, Height))

          {

            bmp.SetResolution(OriginalImage.HorizontalResolution, OriginalImage.VerticalResolution);

            using (Graphics Graphic = Graphics.FromImage(bmp))

            {

              Graphic.SmoothingMode = SmoothingMode.AntiAlias;

              Graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;

              Graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;

              Graphic.DrawImage(OriginalImage, new Rectangle(0, 0, Width, Height), X, Y, Width, Height, GraphicsUnit.Pixel);

              //MemoryStream ms = new MemoryStream();

              path_Temp = path + Temp;

              bmp.Save(path_Temp);

              WebReq.Abort();

              //return ms.GetBuffer();

            }

          }

        }

        Qiniu_API.PutFile(path_Temp, Temp);

        return string.Format("http://{0}/{1}", Qiniu_API.Domain, Temp);

        // 

      }



      catch (Exception ex)

      {

        KT_Product_ShowEntities tempconn = new KT_Product_ShowEntities();



        tempconn.Err_Log.Add(new Err_Log()

        {

          CreateTime = DateTime.Now,

          form_no = "",

          Msg = ex.Message,

          StackTrace = ex.StackTrace,

          sys_user = "",

          TargetSite = ex.TargetSite.ToString(),

          UserName = "mail"

        });

        tempconn.SaveChanges();



        throw (ex);

      }

      finally

      {



      }

    }