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本文實例講述了ASP.NET網站防惡意刷新的Cookies與Session解決方法，是WEB程序設計中非常實用的技巧。分享給大家供大家參考。具體實現方法如下：
Session版實現方法：
public double time;public const int freetime = 1;//防刷冰凍時間間隔,當前為1秒#region 防惡意刷新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(); }}#endregionpublic void warm_prompt(){ Response.Write("<table width='778' border='0' align='center' cellpadding='3' cellspacing='2' bgcolor='#009900' style='font-size: 14px; '>"); Response.Write(" <tr bgcolor='#FFFFFF'>"); Response.Write(" <td><img src='/newimages/logos.gif'></td>"); Response.Write(" <td bgcolor='#EEFFEE'為了保證您的訪問安全,請您 " + freetime + " 秒后<a href='" + Request.RawUrl + "' target='_self' style='color:#FF0000;'>點擊這里刷新</a>此頁面</td>"); Response.Write(" </tr>"); Response.Write("</table>"); Response.End();}Cookies版實現方法：
public double time;public const int freetime = 2;#region 防惡意刷新string page;if (Request.Cookies["page"] == null){ page = "";}else{ page = HttpContext.Current.Request.Cookies["page"].Value.ToString(); //獲取cookie中存儲的url值 }string strThisPage = HttpContext.Current.Request.Url.PathAndQuery.ToString();//獲取當前頁地址 DateTime LastTime = DateTime.Now;if (page.Equals(strThisPage))//如果cookie中的值和當前頁相等，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{ //執行操作 Response.Cookies["page"].Value = strThisPage; Response.Cookies["time"].Value = LastTime.ToString();}#endregionpublic void warm_prompt(){ Response.Write("<table width='778' border='0' align='center' cellpadding='3' cellspacing='2' bgcolor='#009900' style='font-size: 14px; '>"); Response.Write(" <tr bgcolor='#FFFFFF'>"); Response.Write(" <td><img src='/newimages/logos.gif'></td>"); Response.Write(" <td bgcolor='#EEFFEE'為了保證您的訪問安全,頁面將在2秒后將自動跳轉到您要訪問的內容！</td>"); Response.Write(" </tr>"); Response.Write("</table>"); Response.Write("<meta http-equiv=/"refresh/" content=/"2/";URL=" + HttpContext.Current.Request.Cookies["page"].Value.ToString() + ">"); Response.End();}相信本文所述對大家的ASP.NET程序設計有一定的借鑒價值。
AspNet技術：asp.net網站防惡意刷新的Cookies與Session解決方法，轉載需保留來源！
鄭重聲明：本文版權歸原作者所有，轉載文章僅為傳播更多信息之目的，如作者信息標記有誤，請第一時間聯系我們修改或刪除，多謝。
