如何重定向到登录页面时，会议已过期（ASP.NET 3.5 FormsAuthen） [英] How to redirect to LogIn page when Session is expired (ASP.NET 3.5 FormsAuthen)

问题描述

我使用FormsAuthentication和ASP.Net SqlMembership提供商。
     我想提供一个功能重定向时的基本会话过期登录页面。
     我把codeS以下块在我的的BasePage OnInit的。
     虽然我测试至今，它总是不断重定向到登录，即使我提供正确的用户ID和密码的页面。
     按理说，应该带我去的默认页。这是pretty紧迫和任何帮助将非常AP preciated。

问候，
Thurein

 如果（Context.Session = NULL＆放大器;！＆安培; Session.IsNewSession和放大器;＆安培; this.Request.IsAuthenticated）
        {
            字符串cookieHeader = Request.Headers [曲奇];
            如果（cookieHeader = NULL＆放大器;！＆安培; cookieHeader.IndexOf（ASP.NET_SessionId）＆GT; = 0）
            {
                    HttpContext.Current.Session.Abandon（）;
                    FormsAuthentication.SignOut（）;
                    的Response.Redirect（FormsAuthentication.LoginUrl）;            }
        }
 

解决方案

您不需要任何自定义code此功能，它是由框架的支持。只是配置在web.config：

 ＆LT;身份验证模式=表格＆GT;
    ＆LT;形式defaultUrl =〜/ Default.aspx的
        loginUrl =〜/的Login.aspx
        slidingExpiration =真
        超时=60/＆GT;
＆LT; /认证＆GT;
 

通过以​​上的结构中，用户将被始终当他们的会话到期重定向到Login.aspx页面。有60分钟的超时，滑动到期意味着超时每个用户进行Web应用程序的请求时间延长，所以如果他保持积极的会议将不会过期。像这样的配置给你另一个优势你试图做什么 - 一旦用户登录，他将被自动重定向回原来他请求的资源。而你总是可以覆盖和定制此行为。

I'm using FormsAuthentication and ASP.Net SqlMembership Provider. I would like to provide a functionality to redirect to LogIn page when the underlying Session is expired. I put the following block of codes in my BasePage OnInit. As far as I tested, it always keeps on redirecting to LogIn page even though I supplied correct UserID and Password. By rights, it should take me to default page. It's pretty urgent and any help would be much appreciated.

Regards, Thurein

if (Context.Session != null && Session.IsNewSession && this.Request.IsAuthenticated)
        {
            string cookieHeader = Request.Headers["Cookie"];
            if (cookieHeader != null && cookieHeader.IndexOf("ASP.NET_SessionId") >= 0)
            {


                    HttpContext.Current.Session.Abandon();                       
                    FormsAuthentication.SignOut();                        
                    Response.Redirect(FormsAuthentication.LoginUrl);                                           

            }
        }

解决方案

You don't need any custom code for this functionality, it's supported by the Framework. Just configure it in the web.config:

<authentication mode="Forms">
    <forms defaultUrl="~/Default.aspx"
        loginUrl="~/Login.aspx"
        slidingExpiration="true"
        timeout="60" />
</authentication>

With the configuration above, the user will be always redirected to the Login.aspx page when their session expires. There is a timeout of 60 minutes, and sliding expiration means that the timeout is extended each time the user makes a request to the web application, so if he stays active the session will not expire. A configuration like this gives you another advantage over what you tried to do - once the user logs in he will be automatically redirected back to the resource he originally requested. And you can always override and customize this behavior.

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