privatevoid DownloadFile() { string path = Server.MapPath(Request.Params["File"]); //string path = this.ApplicationRootPath + objNetDisk_Resource.ResURL; if(!File.Exists(path)) { // 文件没有找到 //Page.Response.Write ("文件不存在") ; this.AlertMessage("下载文件不存在!","ViewMusic.aspx?FileID="+Request.QueryString["FileID"].ToString()); // return; } else { System.IO.FileInfo file =new System.IO.FileInfo(path); // clear the current output content from the buffer Response.Clear(); // add the header that specifies the default filename for the Download/SaveAs dialog Response.AddHeader("Content-Disposition", "attachment; filename="+ HttpUtility.UrlEncode(file.Name,System.Text.Encoding.UTF8 )); // add the header that specifies the file size, so that the browser // can show the download progress Response.AddHeader("Content-Length", file.Length.ToString()); // specify that the response is a stream that cannot be read by the // client and must be downloaded Response.ContentType ="application/octet-stream"; // send the file stream to the client Response.WriteFile(file.FullName); // stop the execution of this page Response.End(); } }
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2006-03-05 12:08星火燎原
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