Base64编码保存到文件服务器

  byte[] buffer = Convert.FromBase64String(param.Base64Code);
                System.Net.WebClient webClient = new System.Net.WebClient();
                param.MsysGuid = Utils.NewGUID;
                param.FileName = String.Format("{0}.jpg", param.OrderMumber);
                string webHostUrl = string.Format("http://{0}/Upload.aspx?&fid={1}&fname={2}&fsize={3}&guid={4}",
                                                        Utils.FileServerIp, param.MsysGuid, Uri.EscapeDataString(param.FileName), buffer.Length, param.MsysGuid);
                byte[] bytes = webClient.UploadData(webHostUrl, buffer);
                string result = webClient.Encoding.GetString(bytes);
                webClient.Dispose();
                if (result.StartsWith("##"))
                {
                    throw new Exception(result);
                }