登出问题 [英] Logout problem

问题描述

你好，

我正在设计一个网站.除注销方案外，其他一切正常.用户登录网站后，他使用该网站(网站)并注销以返回登录页面，但问题是如果单击返回，则从登录页面退出按钮，再次将其重定向到上次使用的页面.这应该不会发生.该会话仍然存在.我在Logout linkbutton click事件中使用了

Hi there,

I am designing a website.Everything works fine except the logout scenario.After the user login into website,he uses it(website) and does a logout to return to Login page,but the problem is that from login page if I click the back button,again it redirects to the last used page.This should not happen.The session still exists.I used

Session.Abandon();
Response.Redirect("Login.aspx");

.但是问题仍然存在.
还有其他解决方案吗?我可以使用会话超时机制.请让我知道.
谢谢和问候，
S.M. Naresh.

in Logout linkbutton click event.But the problem still exists.
Is there any other solution for this and Can I use Session Timeout mechanisms.Please let me know..
Thanks and Regards,
S.M.Naresh.

推荐答案

由于高速缓存而发生这种情况.
1.清除会话
2.清除缓存，使浏览器没有历史记录(这将使浏览器中的后退/前进"按钮变为灰色).

清除缓存的代码可以放在下面的代码中:

This happens because of cache.
1. clear the sessions
2. clear the cache such that browser has no history (this will make back/forward button in browser grayed out disabled.)

Code for clearing cache can be put up in code behind as follows:

// Code disables caching by browser. Hence the back browser button
// grayed out and could not causes the Page_Load event to fire 
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.UtcNow.AddHours(-1));
Response.Cache.SetNoStore();

或
您可以将类似的东西添加为aspx格式:

OR
You can add somethin similar in form aspx if you want to place it there:

<meta http-equiv="Cache-Control" content="no-cache">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0"></meta></meta></meta>

或
您可以通过JavaScript清除浏览器历史记录....

OR
You can clear browser history through JavaScript....

//clears browser history and redirects url
<SCRIPT LANGUAGE=javascript> {  var Backlen=history.length;   history.go(-Backlen);   window.location.href=page url }</SCRIPT>

或者如您在登出事件中所说:

OR as you say in you logout event:

protected void LogOut()   
{       
     Session.Abandon();       
     string nextpage = "Logoutt.aspx";       
     Response.Write("<script language=javascript>");             
     Response.Write("{");       
     Response.Write(" var Backlen=history.length;");       
     Response.Write(" history.go(-Backlen);");       
     Response.Write(" window.location.href='" + nextpage + "'; ");
     Response.Write("}");       
     Response.Write("</script>");   
}

这篇关于登出问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！