ASP.NET五步打包下载Zip文件

        ///<summary>
        /// 批量打包下载 Author:吴双
        /// </summary>
        /// <param name="fileName">文件名称</param>
        /// <param name="filePath">文件虚拟路径</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 = "批量下载" + fileNames[0] + "等";
            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)
        {
            //context.Response.ContentType = "text/plain";
            //context.Response.Write("Hello World");

            DownLoadFiles("xxx", "~/Pic/00.gif|~/Pic/02.png");

        }