C#的NHibernate的CRUD开发入门代码例子

本文档适合初级开发者或者是第一次接触NHibernate框架的朋友，其中NHibernate不是最新的版本，
但是一个比较经典的版本 NHibernate 2.1.2，其中用红线标注的部分一定要仔细看，
这些都是容易忽略和出错的地方，笔者在此给大家做了特殊标记。
NHibernate框架的介绍：http://baike.baidu.com/view/954535.htm
开发环境 Vs 2010 + MsSql2005 + NHibernate 2.1.2.
本示例的下载地址：点击下载；NHibernate 2.1.2的下载地址：点击下载；

 

官方：http://sourceforge.net/projects/nhibernate/ 

学习网：http://nmg.codeplex.com/
目录
步骤一、创建数据库和映射的表。
步骤二、创建项目和实体类映射类以及类对应的映射文件。
步骤三、添加项目引用与NHibernate的dll文件。
步骤四、配置hibernate.cfg.xml文件（数据库映射信息配置）无需配置web.config。
步骤五、创建和使用NHibernate.
/***
 * 此代码工程是三年前写的例子.
 *@Author:liangjilong
 *@Date:2012/08/xx
 *@Email:[email protected]
 */

NHibernate跟hibernate没几乎没区别，一个是java语言开发出来的，一个是c#开发的出来

的类库包，当你用c#反编译出来你就看到很多.cs的文件,在此也不用多介绍，最好的就是贴例子

和项目出来。

 

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping   xmlns="urn:nhibernate-mapping-2.2"
   assembly="Model" namespace="Model">
  <class name ="Model.Entities.Users,Model" table="Users">
    <id name="Id" column="Id" type="Int32" unsaved-value="0">
      <generator class ="native"></generator>
    </id>
    <property name="UserName" column ="UserName" type="string" length="20" not-null="false"/>
    <property name="PassWord" column="PassWord" type="string" length="100" not-null="false"/>
    <property name="Address" column="Address" tpye="string" length="100" not-null="false"/>
  </class>
</hibernate-mapping>

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Model
{
	//在c#的实体类跟java的实体类有区别,区别是在于set和get
	//java的是getXX/setXX，c#不需要.它是简化了，毕竟才c#是为了自己有一套不能完全抄袭
	//java的，只能抄袭java的思想
    public class Users
    {
        private int Id { set; get; }
        private string UserName { set;get; }
        private string PassWord { set; get; }
        private string Address { set; get; }
    }
}

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using NHibernate.Cfg;
using NHibernate;
using Model;

namespace DAL
{
    public class UsersDAL
    {
        /// <summary>
        /// HttpContext是System.Web里面的类
        ///  封装有关个别 HTTP 请求的所有 HTTP 特定的信息。
        /// </summary>
        private string path = HttpContext.Current.Server.MapPath("~/hibernate.cfg.xml");

        /// <summary>
        /// 插入
        /// </summary>
        /// <param name="userInfo"></param>
        /// <returns></returns>
        public bool Insert(Users users)
        {
			//读取Nhibernate的配置Configuration
            Configuration cfg = new Configuration().Configure(path);
            //创建Session
            ISession session = cfg.BuildSessionFactory().OpenSession();
            ITransaction transaction = session.BeginTransaction();

            try
            {
				//保存用户
                session.Save(users);
                transaction.Commit();
                return true;
            }
            catch (Exception e)
            {
                transaction.Rollback();
                return false;
            }
            finally
            {
                session.Close();
            }
        }
        /// <summary>
        /// 查询所有用户信息
        /// </summary>
        /// <returns></returns>
        public IList<Users> GetUsers()
        {
            Configuration cfg = new Configuration().Configure(path);
            ISession session = cfg.BuildSessionFactory().OpenSession();
            //使用NHQL
            IList<Users> list = session.CreateQuery(" from Users").List<Users>();
            return list;
        }

        /// <summary>
        /// 更新用户
        /// </summary>
        /// <param name="users"></param>
        /// <returns></returns>
        public bool Update(Users users)
        {
			//读取Nhibernate的配置Configuration
            Configuration cfg = new Configuration().Configure(path);

			//打开Nhibernate的Session
            ISession session = cfg.BuildSessionFactory().OpenSession();
            ITransaction transaction = session.BeginTransaction();
            try
            {
                session.Update(users);
                transaction.Commit();//提交事务
                return true;
            }
            catch (Exception e)
            {
				//回滚事务
                transaction.Rollback();
                return false;
            }
            finally
            {
				//关闭事务
                session.Close();
            }
        }
        /// <summary>
        /// 删除用户
        /// </summary>
        /// <param name="users"></param>
        /// <returns></returns>
        public bool Delete(Users users)
        {
			////读取Nhibernate的配置Configuration
            Configuration cfg = new Configuration().Configure(path);
			//打开Nhibernate的Session
            ISession session = cfg.BuildSessionFactory().OpenSession();
            ITransaction transaction = session.BeginTransaction();
            try
            {
				//删除用户
                session.Delete(users);
                transaction.Commit();//提交事务
                return true;
            }
            catch (Exception e)
            {
				//回滚事务
                transaction.Rollback();
                return false;
            }
            finally
            {
                session.Close();//关闭事务
            }
        }
        /// <summary>
        /// 根据用户ID去查询
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public Users GetUserById(int userId)
        {
            Configuration cfg = new Configuration().Configure(path);
            ISession session = cfg.BuildSessionFactory().OpenSession();
            return session.Get<Users>(userId);
        }

    }
}

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Model;
using DAL;

namespace BLL
{
    public class UsersBLL
    {
        /// <summary>
        /// 插入信息
        /// </summary>
        /// <param name="users"></param>
        /// <returns></returns>
        public bool Insert(Users users)
        {
            return new UsersDAL().Insert(users);
        }
        /// <summary>
        /// 获取所有用户信息
        /// </summary>
        /// <returns></returns>
        public IList<Users> GetUsers()
        {
            return new UsersDAL().GetUsers();
        }
        /// <summary>
        /// 更新用户
        /// </summary>
        /// <param name="users"></param>
        /// <returns></returns>
        public bool Update(Users users)
        {
            return new UsersDAL().Update(users);
        }
        /// <summary>
        /// 删除用户
        /// </summary>
        /// <param name="users"></param>
        /// <returns></returns>
        public bool Delete(Users users)
        {

            return new UsersDAL().Delete(users);
        }
       /// <summary>
       /// 通过ID去查询
       /// </summary>
       /// <param name="userId"></param>
       /// <returns></returns>
        public Users GetUserById(int userId)
        {
            return new UsersDAL().GetUserById(userId);
        }
    }
}

 

<?xml version="1.0" encoding="utf-8"?>
<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
  <session-factory name="NHibernate">
    <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
    <property name="connection.connection_string">
       Data Source=.;Initial Catalog=CRMEasy;Persist Security Info=True;User ID=sa;Password=admin1988
    </property>
    <property name="adonet.batch_size">10</property>
    <property name="show_sql">false</property>
    <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
    <property name="use_outer_join">true</property>
    <property name="command_timeout">10</property>
    <property name="query.substitutions">true 1, false 0, yes 'Y', no 'N'</property>
    <mapping assembly="Model"/>
  </session-factory>
</hibernate-configuration>

 

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using BLL;
using System.Collections.Generic;
using Model;

namespace WebApp
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            UsersBLL u = new UsersBLL();
            IList<Users> list = u.GetUsers();
            GridView1.DataSource = list;
            GridView1.DataBind();
        }
    }
}

 代码在百度网盘链接: http://pan.baidu.com/s/1c1neoz2 密码: dff8

 

 


 
 

 

 

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