public ResultClass <UserEntity> CheckLogin(string username, string password) { ResultClass <UserEntity> _ret = new ResultClass <UserEntity>(); UserApp bll = new UserApp(); try { _ret.ResultData = bll.CheckLogin(username, password); if (_ret.ResultData != null) { _ret.Result = true; #region 生成且保存用户票据 _ret.ErrorMessage = "20171225"; //System.DateTime.Now.ToString("yyyyMMddHHmmss");//把票据返回给前端 HttpContext.Current.Session[_ret.ErrorMessage] = _ret.ResultData; //保存票据信息 #endregion } } catch (Exception ex) { _ret.ErrorMessage = ex.Message; } finally { bll.Dispose(); } return(_ret); }