在公布的code是一些code，我们在这里的翻版。

据现在工作正常2年。

每个用户访问自己的会话。向服务器发出的每个请求是一个新的线程。即使2请求是同时，所述HttpContext.Current是为每个请求的不同

I am building a class to store User ID and User Role in a session. I'm not sure how this class will behave when multiple users are on the site at the same time. Does anyone see a problem with this?

public static class SessionHandler
    {   
        //*** Session String Values ***********************

        private static string _userID = "UserID";
        private static string _userRole = "UserRole";

        //*** Sets and Gets **********************************************************

        public static string UserID
        {
            get
            {
                if (HttpContext.Current.Session[SessionHandler._userID] == null)
                { return string.Empty; }
                else
                { return HttpContext.Current.Session[SessionHandler._userID].ToString(); }
            }
            set
            { HttpContext.Current.Session[SessionHandler._userID] = value; }

        }
        public static string UserRole
        {
            get
            {
                if (HttpContext.Current.Session[SessionHandler._userRole] == null)
                { return string.Empty; }
                else
                { return HttpContext.Current.Session[SessionHandler._userRole].ToString(); }
            }
            set
            { HttpContext.Current.Session[SessionHandler._userRole] = value; }
        }

}

The code you posted is the exact replica of some code we have here.

It has been working fine for 2 years now.

Each users access is own session. Every request made to the server is a new thread. Even though 2 request are simultaneous, the HttpContext.Current is different for each of those request.