public class Common
{
 #region 获取模板页的Html代码
 /// <summary>
 /// 获取页面的Html代码
 /// </summary>
 /// <param name="url">模板页面路径</param>
 /// <param name="encoding">页面编码</param>
 /// <returns></returns>
 public static string GetHtml(string url, System.Text.Encoding encoding)
 {
  byte[] buf = new WebClient().DownloadData(url);
  if (encoding != null)
  {
   return encoding.GetString(buf);
  }
  string html = System.Text.Encoding.UTF8.GetString(buf);
  encoding = GetEncoding(html);
  if (encoding == null || encoding == System.Text.Encoding.UTF8)
  {
   return html;
  }
  return encoding.GetString(buf);
 }

 /// <summary>
 /// 获取页面的编码
 /// </summary>
 /// <param name="html">Html源码</param>
 /// <returns></returns>
 public static System.Text.Encoding GetEncoding(string html)
 {
  string pattern = @"(?i)\bcharset=(?<charset>[-a-zA-Z_0-9]+)";
  string charset = Regex.Match(html, pattern).Groups["charset"].Value;
  try
  {
   return System.Text.Encoding.GetEncoding(charset);
  }
  catch (ArgumentException)
  {
   return null;
  }
 }
 #endregion

 #region 用于生成Html静态页
 /// <summary>
 /// 创建静态文件
 /// </summary>
 /// <param name="result">Html代码</param>
 /// <param name="createpath">生成路径</param>
 /// <returns></returns>
 public static bool CreateFileHtmlByTemp(string result, string createpath)
 {
  if (!string.IsNullOrEmpty(result))
  {
   if (string.IsNullOrEmpty(createpath))
   {
    createpath = "/default.html";
   }
   string filepath = createpath.Substring(createpath.LastIndexOf(@"\"));
   createpath = createpath.Substring(0, createpath.LastIndexOf(@"\"));
   if (!Directory.Exists(createpath))
   {
    Directory.CreateDirectory(createpath);
   }
   createpath = createpath + filepath;

   try
   {
    FileStream fs2 = new FileStream(createpath, FileMode.Create);
    StreamWriter sw = new StreamWriter(fs2, new System.Text.UTF8Encoding(false));//去除UTF-8 BOM
    sw.Write(result);
    sw.Close();
    fs2.Close();
    fs2.Dispose();
    return true;
   }
   catch (Exception ex)
   {
    throw ex;
   }
  }
  return false;
 }
 #endregion

 #region 调用静态模板，并且传递数据模型实体类 创建Html静态页
 /// <summary>
 /// 解析模板生成静态页
 /// </summary>
 /// <param name="temppath">模板地址</param>
 /// <param name="path">静态页地址</param>
 /// <param name="t">数据模型</param>
 /// <returns></returns>
 public static bool CreateStaticPage<T>(string temppath, string path, T t)
 {
  try
  {
   //获取模板Html
   string TemplateContent = GetHtml(temppath, System.Text.Encoding.UTF8);

   //初始化结果
   string result = string.Empty;

   //解析模板生成静态页Html代码
   result = Razor.Parse(TemplateContent, t);

   //创建静态文件
   return CreateFileHtmlByTemp(result, path);
  }
  catch (Exception e)
  {
   throw e;
  }
 }
 #endregion
}

//实例化调用方法
Task tk = new Task(CreateStaticHtml);
tk.Start();
//静态调用方法
Task.Factory.StartNew(() => CreateStaticHtml());

/// <summary>
/// 创建静态页面
/// </summary>
public void CreateStaticHtml()
{
 using (BangLiEntities bangLi = new BangLiEntities())
 {
  View_Home view_Home = new View_Home();
  view_Home.CommandAdExtendList = Dal.CommandAdDal.Instance(bangLi).GetInit().ToList();
  view_Home.NewsList = bangLi.News.OrderByDescending(u => u.AddDateTime).Take(5).ToList();
  view_Home.NewsExtendList = Dal.NewsDal.Instance(bangLi).GetInit().OrderByDescending(u => u.AddDateTime).Take(5).ToList();
  view_Home.News = Dal.NewsDal.Instance(bangLi).GetInit().Where(u => u.Id == 3).SingleOrDefault();
  string TemplateContent = Common.GetHtml(Server.MapPath("/Views/SourceHtml/Home/Index.cshtml"), System.Text.Encoding.UTF8);
  //初始化结果
  string result = string.Empty;
  //解析模板生成静态页Html代码
  result = Razor.Parse(TemplateContent, view_Home);
  //创建静态文件
  Common.CreateFileHtmlByTemp(result, Server.MapPath("/Resource/Manage/Html/Home/Index.html"));
 }
}

public class MyFirstHomeAttribute:ActionFilterAttribute
{
 public override void OnActionExecuting(ActionExecutingContext filterContext)
 {
  var context = filterContext.HttpContext;
  context.Session["IsStaticHtml"] = false;
  string path = context.Server.MapPath("/Resource/Manage/Html/Home/Index.html");
  if (System.IO.File.Exists(path))
  {
   string html = System.IO.File.ReadAllText(path);
   context.Response.Write(html);
   context.Session["IsStaticHtml"] = true;
   context.Response.End();
  }
 }
}

[MyFirstHome]
public ActionResult Index()
{
 View_Home view_Home = null;
 var IsStaticHtml = Convert.ToBoolean(Session["IsStaticHtml"]);
 if (!IsStaticHtml)
 {
  view_Home = new View_Home();
  using (BangLiEntities bangLi = new BangLiEntities())
  {
   view_Home.CommandAdExtendList = Dal.CommandAdDal.Instance(bangLi).GetInit().ToList();
   view_Home.NewsExtendList = Dal.NewsDal.Instance(bangLi).GetInit().OrderByDescending(u => u.AddDateTime).Take(5).ToList();
     
  }
  return View(view_Home);
 }
 else
 {
  return null;
 }
}