ASP.NET文件打包压缩下载

         /**////<summary>
        /// 批量压缩打包下载
         /// </summary>
        /// <param name="fileName">文件名称，多个用 '|' 分割</param>
        /// <param name="filePath">文件虚拟路径，多个用 '|' 分割</param>
        public static void DownLoadFiles(string fileName, string filePath)
        ...{
            List<string> fileNames = fileName.Split('|').ToList();
            List<string> filePaths = filePath.Split('|').ToList();
            MemoryStream ms = new MemoryStream();
            byte[] buffer = null;
            using (ZipFile file = ZipFile.Create(ms))
            ...{
                file.BeginUpdate();
                file.NameTransform = new MyNameTransfom();
                filePaths.ForEach(t =>
                ...{
                    file.Add(HttpContext.Current.Server.MapPath(t));
                });

                file.CommitUpdate();
                buffer = new byte[ms.Length];
                ms.Position = 0;
                ms.Read(buffer, 0, buffer.Length);
            }
            string ss = "Test";
            HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + ss + ".zip");
            HttpContext.Current.Response.BinaryWrite(buffer);
            HttpContext.Current.Response.Flush();
            HttpContext.Current.Response.End();
        }

		

         public void ProcessRequest(HttpContext context)
        ...{
            DownLoadFiles("xxx", "~/Pic/00.gif|~/Pic/02.png");

        }