asp.net mvc layout页面传递Model,建立basecontroller后 获取数据，提示httpcontext为Null

[epui2008]

 public abstract class BaseController:Controller
    {
        public BaseController()
        {
            AdminUserService aus = new AdminUserService();
            if (this.HttpContext.Session["AdminUserId"]==null)
            {
                HttpCookie cookie = this.HttpContext.Request.Cookies.Get("AdminUser_jpyk");
                if(cookie==null)
                {
                    ViewBag.AdminUserModel = null;
                }
                else
                {
                    int id = Convert.ToInt32(cookie.Value);
                    id = id - CommonHelper.IdExt;
                    HttpContext.Session["AdminUserId"] = id;
                    ViewBag.AdminUserModel = aus.GetAdminUser(id);
                }
            }
            else
            {
                int id = Convert.ToInt32(this.HttpContext.Session["AdminUserId"]);
                ViewBag.AdminUserModel = aus.GetAdminUser(id);
            }
        }
       
            
            
          
     
    }

 public AdminUserDTO GetAdminUser(int id)
        {
            DataTable dt = SqlHelper.ExecuteReader("select * from AdminUsers2019 where Id=@id", new SqlParameter { ParameterName = "@id", Value = id });
            if(dt.Rows.Count==1)
            {
                DataRow dr = dt.Rows[0];
                AdminUserDTO m = new AdminUserDTO();
                m.Id = Convert.ToInt32(dr["Id"]);
                m.Name = dr["Name"].ToString();
                m.Permission = dr["Permission"].ToString();
                m.PermissionName = dr["PermissionName"].ToString();
                m.UserName = dr["UserName"].ToString();
                m.CreateDateTime = dr["CreateDateTime"].ToString();
                m.ImgUrl = dr["ImgUrl"].ToString();
                return m;
            }
            else
            {
                return null;
            }
        }

[epui2008]

准备结帖，来接分了哦

[EdsionWang]

Session["AdminUserId"] 还没有赋值

[正怒月神]

验证登录的话，放在OnActionExecuting https://blog.csdn.net/hanjun0612/article/details/50591996

[qq_38191951]

没有获取到id