Excel文件下载

 

  string fileName = Path.Combine(path, name);
                FileInfo fileInfo = new FileInfo(fileName);
                //FileInfo fileInfo = new FileInfo(fileName);
                //fileInfo.Open(FileMode.Open, FileAccess.Read, FileShare.Read);

                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.ClearContent();
                HttpContext.Current.Response.ClearHeaders();
                HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(name, System.Text.Encoding.UTF8));
                HttpContext.Current.Response.AddHeader("Content-Length", fileInfo.Length.ToString());
                HttpContext.Current.Response.AddHeader("Content-Transfer-Encoding", "binary");
                HttpContext.Current.Response.ContentType = "application/octet-stream";
                //Response.ContentEncoding = System.Text.Encoding.GetEncoding("shift-jis");
                //Response.ContentType = "application/x-xls";
                HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
                HttpContext.Current.Response.WriteFile(fileInfo.FullName);
                HttpContext.Current.Response.Flush();
                HttpContext.Current.Response.End();