怎样才能禁用服务器缓存？

Question

Response.Expires = 0;
Response.AddHeader("pragma","no-cache");
Response.AddHeader("cache-control","private");
Response.CacheControl = "no-cache";

Answer 1

//注销时,使缓存过期
Response.Cache.SetExpires( DateTime.Now.AddSeconds(-1) );

Answer 2

你说的与下面语句有区别吗？
<meta http-equiv="Expires" content="0">
<meta http-equiv="Cache-Control" content="no-cache">
<meta http-equiv="Pragma" content="no-cache">用这3个语句没用。
我在页面里有个重新登陆链接，点击该链接进入LOGIN页面。登陆语句为：
            if(Page.IsValid){
                    //保存登陆信息到SESSION
                try{
                    HttpCookie cookie=Request.Cookies["bbgOAUser"];
                    string computername=cookie["COMPUTERNAME"].ToString();
                    string userid=userId.Text;
                    bbg.pub.Log.WriteLog(userid,computername,DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),"登陆",Request.UserHostAddress);
                    FormsAuthentication.RedirectFromLoginPage(userId.Text,false);
                }catch{
                    Label1.Text="写登陆日志出错，请重试";
                }
            }
在登陆页面的LOAD里
                        Session.Abandon();
                        FormsAuthentication.SignOut();
Session.Clear();
Session.RemoveAll();                        HttpCookie cookie=Request.Cookies["bbgOAUser"];
                        userId.Text=cookie["USERID"].ToString();

Answer 3

或者可以根据参数缓存多个版本
login.aspx:
Response.Redirect("a.aspx?UserID=" + sUserID);a.aspx
<%@ OutputCache Duration="600" VaryByParam="UserID" %>
ms-help://MS.VSCC/MS.MSDNVS.2052/cpguide/html/cpconcachingmultipleversionsofusercontrolbasedonparameters.htm