退出账号时清除缓存

        /// <summary>
        /// 安全退出
        /// </summary>
        /// <returns></returns>
        public ActionResult OutLogin()
        {
            string UserId = ManageProvider.Provider.Current().UserId;
            //更改数据库用户表在线状态
            Sys_User entity = new Sys_User();
            entity.UserId = UserId; entity.Online = 0;
            sys_userbll.Repository().Update(entity);
            //清空当前登录用户信息
            ManageProvider.Provider.EmptyCurrent();
            Session.Abandon();  //取消当前会话
            Session.Clear();    //清除当前浏览器所以Session
            CookieHelper.DelCookie("LoginUserKey"); //清除当前Cookie对象
            CookieHelper.DelCookie("SchoolName");
            return Content("1");
        }