WooYun.org

protected void Page_Load(object sender, EventArgs e)
    {
        FileDownload(FilePath);
    }
    public string FilePath
    {
        get
        {
            string temp =Server.UrlDecode( QcdContext.QueryString["FilePath"]);
            if (temp != "")
            {
                return temp;
            }
            else
            {
                Response.Write("文件不存在");
                Response.End();
                return "";
            }
        }
    }
    public static void FileDownload(string FileName)
    {
        String FullFileName = System.Web.HttpContext.Current.Server.MapPath(FileName);
        FileInfo DownloadFile = new FileInfo(FullFileName);
        System.Web.HttpContext.Current.Response.Clear();
        System.Web.HttpContext.Current.Response.ClearHeaders();
        System.Web.HttpContext.Current.Response.Buffer = false;
        System.Web.HttpContext.Current.Response.ContentType = "application/octet-stream";
        System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8));
        System.Web.HttpContext.Current.Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
        System.Web.HttpContext.Current.Response.WriteFile(DownloadFile.FullName);
        System.Web.HttpContext.Current.Response.Flush();
        System.Web.HttpContext.Current.Response.End();
    }