asp.net网站防恶意刷新的Cookies与Session解决方法_实用技巧_

 public double time; public const int freetime = 1;//防刷冰冻时间间隔,当前为1秒 #region 防恶意刷新 if (Session.SessionID == null) { Response.End(); } else if (Session["sionid"] == null) { Session["sionid"] = Session.SessionID; } if (Session["last"] == null) { Session["last"] = DateTime.Now; } else { DateTime thisTime = DateTime.Now; DateTime lastTime = DateTime.Parse(Session["last"].ToString()); if (Session.SessionID == Session["sionid"].ToString()) Session["last"] = thisTime; TimeSpan ts = thisTime - lastTime; time = ts.TotalMilliseconds; if (time < freetime * 500) { warm_prompt(); } } #endregion public void warm_prompt() { Response.Write(""); Response.Write(" "); Response.Write(" "); Response.Write(" "); Response.Write(" "); Response.Write("
点击这里刷新此页面
"); Response.End(); } 

 public double time; public const int freetime = 2; #region 防恶意刷新 string page; if (Request.Cookies["page"] == null) { page = ""; } else { page = HttpContext.Current.Request.Cookies["page"].Value.ToString(); //获取cookie中存储的url值 } string strThisPage = HttpContext.Current.Request.Url.PathAndQuery.ToString();//获取当前页地址 DateTime LastTime = DateTime.Now; if (page.Equals(strThisPage))//如果cookie中的值和当前页相等，那么表示是刷新操作 { TimeSpan ts = LastTime - DateTime.Parse(HttpContext.Current.Request.Cookies["time"].Value.ToString()); time = ts.Seconds; if (time < freetime) { warm_prompt(); } } else { //执行操作 Response.Cookies["page"].Value = strThisPage; Response.Cookies["time"].Value = LastTime.ToString(); } #endregion public void warm_prompt() { Response.Write(""); Response.Write(" "); Response.Write(" "); Response.Write(" "); Response.Write("
"); Response.Write(" 
"); Response.Write(""); Response.End(); }