Asp.net 项目中引入Nhibernate 入门(一)

一> 将download的Nhibernate 解压,根据项目实际将其bin文件下的相关Dll文件,拷贝到Asp.net项目中Bin文件夹下;
二> 打开web.cofig文件 ,在<configuration>下进行Nhibernate 配置

<configSections>
            <section name="nhibernate" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" />
            
    </configSections>
    
    <nhibernate>
        <add 
            key="hibernate.show_sql"
            value="true"
        />
        <add 
            key="hibernate.connection.provider"          
            value="NHibernate.Connection.DriverConnectionProvider" 
        />
        <add 
            key="hibernate.dialect"                      
            value="NHibernate.Dialect.MsSql2000Dialect" 
        />
        <add 
            key="hibernate.connection.driver_class"          
            value="NHibernate.Driver.SqlClientDriver" 
        />
        <add 
            key="hibernate.connection.connection_string" 
            value="Server=127.0.0.1;initial catalog=UserTest;User id =sa;Password=" 
        />
        
    </nhibernate>

三> 编写需要持久化的类User

using System;

namespace Web
{
    /**//// <summary>
    /// User 需要被持久化的类
    /// </summary>
    [Serializable]
    public class User
    {
        private int  id;
        private string userName;
        private string password;
        private string emailAddress;
        private DateTime lastLogon;
        public User()
        {
            
        }
        public int  Id
        {
            get {return id;}
            set {id=value;}
        }
        public string UserName
        {
            get {return userName;}
            set {userName=value;}
        }
        public string Password
        {
            get {return password;}
            set {password=value;}
        }
        public string EmailAddress
        {
            get {return emailAddress;}
            set {emailAddress=value;}

        }
        public DateTime LastLogon
        {
            get {return lastLogon;}
            set {lastLogon=value;}
        }
    }
}

四> 当然先要建好数据表users;构建持久化对象属性的映射文件User.hbm.xml (将类属性映射为数据表users的字段),注意如是用vs.net 2003编译，则映射文件User.hbm.xml的生成操作要选为"嵌入的资源"

<?xml version="1.0" encoding="utf-8" ?> 
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
   <class name="Web.User, Web" table="users">
     <id name="Id" column="LogonID" type="Int32" unsaved-value="0">
              <generator class="identity"/>
     </id>
     <property name="UserName" column="Name" type="String" ></property>
     <property name="Password" column="Password" type="String" ></property>
     <property name="EmailAddress" column="EmailAddress" type="string" ></property>
     <property name="LastLogon" column="LastLogon" type="DateTime"></property>
  </class>

</hibernate-mapping>

五> cs文件利用Nhibernate 的API

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;
using NHibernate;
using NHibernate.Cfg;
using System.Reflection;
namespace Web
{
    /**//// <summary>
    /// test1 的摘要说明。
    /// </summary>
    public class test1 : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.Label Label1;
        protected System.Web.UI.WebControls.Label Label2;
        protected System.Web.UI.WebControls.TextBox txt_uName;
        protected System.Web.UI.WebControls.TextBox txt_uPassword;
        protected System.Web.UI.WebControls.Button btn_OK;
        protected System.Web.UI.WebControls.TextBox txt_uEmail;
        protected System.Web.UI.WebControls.Label Label3;
    
        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
        }

        Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }
        
        /**//// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {    
            this.btn_OK.Click += new System.EventHandler(this.btn_OK_Click);
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion

        private void btn_OK_Click(object sender, System.EventArgs e)
        {
            User newUser = new User();

            //配置Configuration

             Configuration cfg = new Configuration();
            cfg.AddAssembly("Web");
//            Configuration cfg = new Configuration().Configure();


            //创建ISessionFactory
            ISessionFactory factory = cfg.BuildSessionFactory();
            //定义事务
            ITransaction tx = null;
            //打开ISession
            ISession session = factory.OpenSession();
            
            try            
            {
                //开始事务
                tx = session.BeginTransaction();
                newUser.UserName = txt_uName.Text.Trim();
                newUser.Password = txt_uPassword.Text.Trim();
                newUser.EmailAddress = txt_uEmail.Text.Trim();
                newUser.LastLogon=DateTime.Now;
                // 保存新用户
                session.Save(newUser);
                tx.Commit();
            }
            catch(HibernateException ex)
            {
                if (tx!=null) tx.Rollback();                
                throw ex;
            }
            finally
            {
                //关闭ISession
                session.Close();
            }

        }
    }
}