NHibernate Isession管理

 foreach (var item in favoriteId)
                {
                    if (!string.IsNullOrEmpty(item))
                    {
                        var favorite = _session.Get<Favorite>(Guid.Parse(item));
                        if (favorite != null)
                        {
                            // 删除资源
                            var favoriteList = _session.CreateCriteria<Favorite>().Add(Restrictions.Eq("ResId", favorite.ResId)).List();
                            if (favoriteList != null && favoriteList.Count <= 1)
                            {
                                _session.Delete(new FavoriteResourceInfo { ResId = favorite.ResId });
                            }
                            // 删除关联
                            var favoriteLabelList = _session.CreateCriteria<FavoriteLabel>().Add(Restrictions.Eq("FavoriteId", Guid.Parse(item))).List<FavoriteLabel>();  //relationResponse.GetRelationByFavoriteId(Guid.Parse(item));
                            if (favoriteLabelList != null && favoriteLabelList.Count > 0)
                                foreach (var favoriteLabel in favoriteLabelList)
                                {
                                    _session.Delete(favoriteLabel);
                                }
                            // 删除收藏
                            _session.Delete(favorite);
                        }
                    }