根据原文件生成指定的静态文件

public class CreateHtmlHelper
    {
        public CreateHtmlHelper()
        { }

        /// <summary>
        /// 根据原文件生成指定的静态文件
        /// </summary>
        /// <param name="_SourceFileName">原文件【虚拟路径】，如aspx</param>
        /// <param name="_TargetFileName">目标静态文件【虚拟路径】，如html</param>
        /// <param name="_Ed"></param>
        /// <returns></returns>
        public static bool CreateHtml(string _SourceFileName,string _TargetFileName,Encoding _Ed)
        {
            return WriteFile(HttpContext.Current.Server.MapPath(_TargetFileName), RenderPage(_SourceFileName), _Ed);
        }

        #region 辅助方法

        private static string RenderPage(string LocationPage)
        {
            StringBuilder v_Result = new StringBuilder();
            HttpContext.Current.Server.Execute(LocationPage, new HtmlTextWriter(new StringWriter(v_Result)));
            return v_Result.ToString();
        }

        private static bool WriteFile(string _FilePath, string _FileValue, Encoding _Encoding)
        {
            try
            {
                StreamWriter sw = new StreamWriter(_FilePath, false, _Encoding);
                sw.Write(_FileValue);
                sw.Close();
            }
            catch
            {
                return false;
            }
            return true;
        }

        #endregion
    }

这样调用：
CreateHtmlHelper.CreateHtml("快照网页", "网页名称", System.Text.Encoding.UTF8);