Questions about IHttpModule

chrisguan

I made an http module today, I want to use him to judge, the login system is not,
I wrote it like this,
 public class httpModuleSession: IHttpModule, IRequiresSessionState

    {
        public void Init (HttpApplication application)
        {
            application.AcquireRequestState + = (new EventHandler (this.Application_AcquireRequestState));

        }
        private void Application_AcquireRequestState (Object source, EventArgs e)
        {
            HttpApplication application = (HttpApplication) source;
            HttpContext context = (HttpContext) application.Context;
            string url = context.Request.Url.ToString (). Substring (context.Request.Url.ToString (). LastIndexOf ('/') + 1) .ToLower ();
            if (url! = "login.aspx"&&context.Session ["UserInfo"]! = null)
            {
                context.Response.Redirect ("login.aspx");
            
            }
     
       }
        public void Dispose ()
        {
        }
    }
But it always reminds me that context.Session ["UserInfo"] does not exist. Excuse me, in which event can I capture the session? And if I write it like this
   if (url! = "login.aspx")
            {
                context.Response.Redirect ("login.aspx");
            
            }
So the picture in login.aspx doesn't show anything? Why not let me see it?

dfgdfg

Before context.Session, is it necessary to
if(Session["UserInfo"]!=null)
{
....
}

magicdreamer

use
System.Web.HttpContext.Current Get Session

magicdreamer

HttpApplication application = (HttpApplication)source;
HttpContext context = (HttpContext)application.Context;

The context can only be used as the context of the current http request.