NHibernate1.2 实现增、删、改、查 功能！！！

     说明：login 为数据库表的实体类

    public class UserAccess    {

        //构造函数         public UserAccess()        {            cfg.AddAssembly("Entitys");        }

        private NHibernate.Cfg.Configuration cfg = new NHibernate.Cfg.Configuration();        private ISession session = null;    //会话工厂        private ITransaction tran = null;     //事务处理                private string m_error = "";

        /// <summary>        /// 获取错误信息        /// </summary>        public string Error        {            get { return this.m_error; }        }

        /// <summary>        /// 添加        /// </summary>        /// <returns></returns>        public bool InsertUser(login l)        {            try            {

                session = cfg.BuildSessionFactory().OpenSession();                tran = session.BeginTransaction();                session.Save(l);                tran.Commit();            }            catch (Exception ex)            {                tran.Rollback();                this.m_error = ex.Message;                return false;            }            finally            {                                this.session.Close();            }            return true;        }

        /// <summary>        /// 修改        /// </summary>        /// <returns></returns>        public bool UpdateUser(login l,int id)        {            try            {                session = cfg.BuildSessionFactory().OpenSession();                tran = session.BeginTransaction();

                session.Update(l,id);                tran.Commit();            }            catch(Exception ex)            {                tran.Rollback();                this.m_error = ex.Message;                return false;            }                    finally            {                this.session.Close();            }            return true;        }

        /// <summary>        /// 删除        /// </summary>        /// <returns></returns>        public bool IDelUser(int ID)        {            try            {                session = cfg.BuildSessionFactory().OpenSession();                tran = session.BeginTransaction();

                login l = (login)session.Load(typeof(login), ID);                session.Delete(l);                tran.Commit();            }            catch(Exception ex)            {                tran.Rollback();                this.m_error = ex.Message;                return false;            }                    finally            {                this.session.Close();            }            return true;        }

        /// <summary>        /// 查找一条数据        /// </summary>        /// <returns></returns>        public Entitys.login SelectUserByID(int ID)        {            try            {                session = cfg.BuildSessionFactory().OpenSession();                login l = (login)session.Load(typeof(login), ID);                return l;            }            catch (Exception ex)            {                this.m_error = ex.Message;                return null;            }            finally            {                this.session.Close();            }        }

        / <summary>        / 查看        / </summary>        / <returns></returns>        //public int GetUsers()        //{        //    try        //    {                    //    }        //    catch(Exception ex)        //    {        //        return -1;        //        throw(ex);        //    }        //}    }

 

转载于:https://www.cnblogs.com/xxj-jing/archive/2007/10/15/2890136.html

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