Nhibernate基类

NHibernate是一个面向.NET环境的对象/关系数据库映射工具

1.webconfig部分

<?xml version="1.0"?>



<configuration>

  <!--配置段处理程序声明区-->

  <configSections>

    <section name="nhibernate" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>

  </configSections>

  <!--配置段处理程序声明区-->

  <system.web>

    <compilation debug="true" targetFramework="4.0"/>

  </system.web>

  

  <!--Nhibernate连接-->

  <nhibernate>

    <add key="show-sql" value="true"/>

    <add key="hibernate.use_proxy_validator" value="false"/>

    <add key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider"/>

    <add key="hibernate.dialect" value="NHibernate.Dialect.MsSql2005Dialect"/>

    <add key="hibernate.connection.connection_string" value="Server=.\SQLEXPRESS;User=test;Password=test;Initial Catalog=demo;integrated security=false;persist security info=True;"/>

  </nhibernate>

  <!--Nhibernate连接-->

</configuration>

 

2.读取配置文件

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

/**/

using NHibernate;

using NHibernate.Cfg;



namespace DAL

{

    public class NHibernateSession

    {

        private static readonly ISessionFactory sessionFactory;



        #region 读取配置文件

        /// <summary>

        /// 读取配置文件

        /// </summary>

        static NHibernateSession()

        {

            Configuration cfg = new Configuration();

            cfg.AddAssembly("Model");

            sessionFactory = cfg.BuildSessionFactory();

        }

        #endregion



        public static ISessionFactory GetCurrentSessionFactory()

        {

            return sessionFactory;

        }

    }

}

3.基类操作

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

/**/

using NHibernate;

using NHibernate.Cfg;

using System.Collections;



namespace DAL

{

   public class BaseDAL

   {

       #region 查询，返回IList

       /// <summary>

       /// 查询，返回IList

       /// </summary>

       /// <param name="hql"></param>

       /// <returns></returns>

       public static IList GetObjectList(string hql)

       {

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())//打开数据库

           {

               //查询

               IQuery iquery = session.CreateQuery(hql);

               IList list=null;

               try

               {

                   list=iquery.List();

               }

               catch(Exception ex)

               {

                   throw ex;

               }

               session.Close();

               return list;

           }

       }

       #endregion



       #region 分页查询

       /// <summary>

       /// 分页查询

       /// </summary>

       /// <param name="hql"></param>

       /// <param name="page"></param>

       /// <param name="pageSize"></param>

       /// <returns></returns>

       public static IList GetObjectList(string hql, int page, int pageSize)

       {

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())

           {

               IQuery iquery = session.CreateQuery(hql);

               IList list = null;

               try

               {

                   iquery.SetFirstResult(page*pageSize);//开始

                   iquery.SetMaxResults(pageSize);//结束

                   list=iquery.List();

               }

               catch(Exception ex)

               {

                   throw ex;

               }

               session.Close();

               return list;

           }

       }

       #endregion



       #region 增加一条记录

       /// <summary>

       /// 增加一条记录

       /// </summary>

       /// <param name="obj"></param>

       /// <returns></returns>

       public static object Insert(object obj)

       {

           if (obj != null)

           {

               using (ISession session = NHibernateSession.GetCurrentSessionFactory().OpenSession())

               {

                   ITransaction transaction = session.BeginTransaction();

                   object result = null;

                   try

                   {

                       result = session.Save(obj);

                   }

                   catch (Exception ex)

                   {

                       throw ex;

                   }

                   transaction.Commit();

                   session.Close();

                   return result;

               }

           }

           else

               return null;

       }

       #endregion



       #region 更新

       /// <summary>

       /// 更新

       /// </summary>

       /// <param name="obj"></param>

       /// <returns></returns>

       public static bool Update(object obj)

       {

           bool result = false;

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())

           {

              ITransaction transaction = session.BeginTransaction();

                   

               try

               {

                  session.Update(obj);

                  transaction.Commit();

                  result = true;



               }

               catch (Exception ex)

               {

                   throw ex;

               }

               session.Close();

               return result;

            }



       }

       #endregion



       #region 删除

       /// <summary>

       /// 删除

       /// </summary>

       /// <param name="obj"></param>

       /// <returns></returns>

       public static bool Delete(string hql)

       {

           bool result = false;

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())

           {

               ITransaction transaction = session.BeginTransaction();

               try

               {

                   session.Delete(hql);

                   transaction.Commit();

                   result = true;

               }

               catch (Exception ex)

               {

                   throw ex;

               }

               session.Close();

               return result;

              

           }

       }

       #endregion



       #region 执行存储过程

       /// <summary>

       /// 执行存储过程

       /// </summary>

       /// <param name="spname"></param>

       /// <param name="parms"></param>

       /// <param name="entityType"></param>

       /// <returns></returns>

       public static IList ExecSP(string spname,string parms,Type entityType)

       {

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())

           {

               ITransaction transaction = session.BeginTransaction();

               string sqlQuery = "Exec" + spname + " " + parms;

               IQuery iquery = session.CreateSQLQuery(sqlQuery).AddEntity(entityType);

               IList list = iquery.List();

               transaction.Commit();

               session.Close();

               return list;

           }

       }

       #endregion



       #region 执行存储过程

       /// <summary>

       /// 执行存储过程

       /// </summary>

       /// <param name="spname"></param>

       /// <param name="parms"></param>

       /// <param name="entityType"></param>

       /// <returns></returns>

       public static IList ExecSP(string spname, string[] parms, Type entityType)

       {

           using (ISession session=NHibernateSession.GetCurrentSessionFactory().OpenSession())

           {

               ITransaction transaction = session.BeginTransaction();

               string sqlQuery = "Exec" + spname;

               foreach(string p in parms)

               {

                   sqlQuery += "'" + p + "',";

               }

               sqlQuery = sqlQuery.Remove(sqlQuery.Length-1);

               IQuery iquery = session.CreateSQLQuery(sqlQuery).AddEntity(entityType);

               IList list = iquery.List();

               transaction.Commit();

               session.Close();

               return list;

           }

       }

       #endregion

   }

}