下载SERVER上的文件

//保存EXCEL到SERVER上
private void SaveExcel(HSSFWorkbook wb,string path,string fileName)
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            FileStream fs = new FileStream(path+fileName, FileMode.Create, FileAccess.ReadWrite);
            wb.Write(fs);
            fs.Close();
        }

//下载SERVER上的EXCEL
private void DownLoadExcel(string path,string fileName)
        {
            //"http://" + HttpContext.Current.Request.Url.Host + "/Resource/tempdata/fn.xls";
            //"http://" + HttpContext.Current.Request.Url.Host+":"+HttpContext.Current.Request.Url.Port + "/Resource/tempdata/fn.xls";
            Response.ContentType = "application/vnd.ms-excel";
            Response.AddHeader("Content-Disposition", "attachment;filename="+HttpUtility.UrlEncode(fileName,System.Text.Encoding.UTF8));
            Response.TransmitFile(path + fileName);
        }