每个用户仅允许一个登录会话 [英] Allow only a single login session per user

问题描述

基本上，我是在问

Essentially I am asking this question here, but I am using ASP Identity instead of the ASP.Net Membership provider, and with that, that answer is of no use to me.

推荐答案

弄清楚如何做到这一点.登录后，我将其称为:

Figured out how to do it. On login I call this:

var key = user.UserName;
var timeOut = new TimeSpan(0, 0, HttpContext.Current.Session.Timeout, 0, 0);
HttpContext.Current.Cache.Insert(key, Session.SessionID, null, DateTime.MaxValue, timeOut, CacheItemPriority.NotRemovable, null);

Global.asax

if (Session["username"] != null)
    {
        var cacheKey = Session["username"].ToString();
        if ((string) HttpContext.Current.Cache[cacheKey] != Session.SessionID) LogOut();
    }

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