NHibernate 学习20101103

     最近在看李永京的NHibernate文章 "传送门",做了下DEMO。

后期借助这个DEMO 来加Spring.net 和MVC 以及购物车 做个总结,以便日后留用...

 

 表两张 Customer、Order.  数据库 Oracle 10g   

  结构参考

Customer XML配置:

<? xml version="1.0" encoding="utf-8"  ?>

<!-- 父表CustomerXML配置(Customer.hbm.xml) 对应Oracle里的表 CUSTOMER（全大写）  -->

< hibernate-mapping  xmlns ="urn:nhibernate-mapping-2.2"
   assembly ="NHibernateSample.Domain"
   namespace ="NHibernateSample.Domain.Entities" >
   <!-- 父端路径:NHibernateSample.Domain.Entities.Customer...程序集:NHibernateSample.Domain...父端在数据库中对应的表名为CUSTOMER（全大写） -->
   < class  name  ="NHibernateSample.Domain.Entities.Customer,NHibernateSample.Domain"  table ="CUSTOMER" >
     <!-- 父表的主键 -->
     < id  name ="Id"  column  ="CUSTOMERID" >
       < generator  class  ="assigned" />
       <!-- 非自增长assigned.Add的时候可自定义 -->
     </ id >
     <!-- assigned -->
     <!-- 类Customer中Firstname字段对应数据库Customer表中的FIRSTNAME字段 -->
     < property  name  ="Firstname"  column  ="FIRSTNAME"    />
     < property  name  ="Lastname"  column  ="LASTNAME"   />
    
     <!-- Relationship : 1:n One customer have many orders -->
     <!-- 映射一对多<set> （在父端映射）
      <set>标签中：name为Orders类的名称，table可写可不写，如果写的话应该分下面两种：
      第一种让NHibernate自动判断，可以写为:table="Order" or table="ORDER" 其中" "中的大小写可以随便写。注:(Oracle中的Order表命名为:Order)
      第二种就是关键字处理 在Oracle中可用table="`Order`" SQL2005中为table="[Order]"。
       -->
     < set  name ="Orders"  table ="`Order`"  generic ="true"  inverse ="true" >
       <!-- 这个key 应该就是Order表中的CUSTOMERID（外键） -->
       < key  column ="CUSTOMERID" ></ key >
       <!-- 标示一对多 子端Orders类的路径以及程序集 -->
       < one-to-many  class ="NHibernateSample.Domain.Entities.Order,NHibernateSample.Domain" />
     </ set >
     <!--  结束 ^_^ -->
   </ class >
</ hibernate-mapping >

 

Order XML配置:

<? xml version="1.0" encoding="utf-8"  ?>

<!-- 子表Order配置（Order.hbm.xml） 对应Oracle里的表 Order （有大有小写） -->

< hibernate-mapping  xmlns ="urn:nhibernate-mapping-2.2"
   assembly ="NHibernateSample.Domain"
   namespace ="NHibernateSample.Domain.Mappings" >

   <!-- 子端路径:NHibernateSample.Domain.Entities.Order...程序集:NHibernateSample.Domain...子端在数据库中对应的表名为Order（有大有小写） -->
   < class  name  ="NHibernateSample.Domain.Entities.Order,NHibernateSample.Domain"  table ="`Order`" >
     <!-- 子表主键 -->
     < id  name  ="OrderID"  column ="ORDERID" >
       < generator  class  ="assigned" />
       <!-- 非自增长assigned.  Add的时候可自定义 -->
     </ id >
     <!-- 类Order中OrderDate字段对应数据库Order表中的ORDERDATE字段 -->
     < property  name ="OrderDate"  column ="ORDERDATE" ></ property >
     <!-- 映射多对一,many-to-one （在子端映射） 
    name为父端的类名，column为父端类对应的表中的主键.（即表CUSTOMER中的CUSTOMERID
    Class 为父端类(Customer)的路径 -->
     < many-to-one  name ="Customer"  column ="CUSTOMERID"  
                 class ="NHibernateSample.Domain.Entities.Customer,NHibernateSample.Domain"  foreign-key ="FK_CustomerOrders" >
     </ many-to-one >
   </ class >
   <!--  结束 ^_^ -->
</ hibernate-mapping >

 Customer类.

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

using  Iesi.Collections.Generic;

namespace  NHibernateSample.Domain.Entities
{
     // 父端类Customer 对用Oracle 中的CUSTOMER
     public   class  Customer
    {
         // CUSTOMER表中的字段
         public   virtual   int  Id {  get ;  set ; }
         public   virtual   string  Firstname {  get ;  set ; }
         public   virtual   string  Lastname {  get ;  set ; }
         // 由于CUSTOMER与Order是Many to one 所以用Iset<T>集合来表示多个Orders
         // 详情参考http: // www.cnblogs.com/lyj/archive/2008/10/24/1319052.html
         public   virtual  ISet < Order >  Orders {  get ;  set ; }
    }
}

Order类

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

namespace  NHibernateSample.Domain.Entities
{
     // 父端类Order 对用Oracle 中的Order
     public   class  Order
    {
         // Order表中对应的字段
         public   virtual   int  OrderID {  get ;  set ; }
         public   virtual  DateTime OrderDate {  get ;  set ; }

         // 由于Order与CUSTOMER是one to many 所以用一个Customer来表示
         public   virtual  Customer Customer {  get ;  set ; }
    }
}

NhibernateCriteria.cs  与Oracle进行交互

NhibernateCriteria.cs

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

using  NHibernateSample.Domain.Entities;
using  NHibernate;
using  NHibernate.Criterion;
using  NHibernate.Criterion.Lambda;

namespace  NHibernateSample.Data
{
     public   class  NhibernateCriteria
    {
         public  NhibernateCriteria()
        {
            NHibernateHelper Hhelp  =   new  NHibernateHelper();
             this .Session  =  Hhelp.GetSession();
        }
         protected  ISession Session {  get ;  set ; }
         public  NhibernateCriteria(ISession session)
        {
            Session  =  session;
        }
         public  IList < Customer >  UseCriteriaAPI_GetCustomersWithOrders()
        {
            DateTime dtime  =   new  DateTime( 1989 ,  10 ,  1 );
             return  Session.CreateCriteria( typeof (Customer))
            .CreateAlias( " Orders " ,  " o " )
            .Add(Restrictions.Gt( " o.OrderDate " , dtime))
            .List < Customer > ();
            
        }
    }
}

 NHibernateHelper.cs 创建_session

NHibernateHelper.cs

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Text;
using  NHibernate;
using  Iesi.Collections;
using  NHibernate.Cfg;
using  NHibernate.Bytecode;

namespace  NHibernateSample.Data
{
   public   class  NHibernateHelper
    {
         private  ISessionFactory _sessionFactory;
         public  NHibernateHelper()
        {
            _sessionFactory  =  GetSessionFactory();
        }
         private  ISessionFactory GetSessionFactory()
        {
             return  ( new  Configuration()).Configure().BuildSessionFactory();
        }
         public  ISession GetSession()
        {
             return  _sessionFactory.OpenSession();
        }

    }
}

 FullName.aspx HTML 做个简单的循环来查看每个CUSTOMER中有多少个订单详情

 

FullName.aspx

<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeBehind = " FullName.aspx.cs "  Inherits = " NHibernateSample.Web.FullName "   %>

<% @ Import Namespace = " NHibernateSample.Domain.Entities "   %>
<% @ Import Namespace = " Iesi.Collections.Generic "   %>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html  xmlns ="http://www.w3.org/1999/xhtml" >
< head  runat ="server" >
     < title ></ title >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
     < div >
         < table >
             < tr >
                 <%   for  ( int  I  =   0 ; I  <  Cus.Count; I ++ )  %>
                 <% {  %>
                 < tr >
                     < td >
                        CustomerID: <% = Cus[I].Id.ToString()  %>
                     </ td >
                     < td >
                        LastName: <% = Cus[I].Lastname.ToString()  %>
                     </ td >
                     < td >
                        FirstName <% =  Cus[I].Firstname.ToString()  %>
                     </ td >
                 </ tr >
                 < tr >
                   
                     <%  foreach (Order o in Cus[I].Orders)  %>
                     <% {  %>
                     < td >
                        OrderID <% =  o.OrderID.ToString() %>
                     </ td >
                     < td >
                        OrderDate <% = o.OrderDate.ToString() %>
                     </ td >
                     <% }  %>
                  
                 </ tr >
                 <% }  %>
             </ tr >
         </ table >
     </ div >
     </ form >
</ body >
</ html >

FullName.aspx.cs

FullName.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using NHibernateSample.Data;
using NHibernateSample.Domain.Entities;
using Iesi.Collections.Generic;
using System.Collections;

namespace NHibernateSample.Web
{

    public partial class FullName : System.Web.UI.Page
    {
        public static IList < Customer >  Cus = null;
        NHibernateSample.Data.NhibernateCriteria NHcri = new NhibernateCriteria();
        protected void Page_Load(object sender, EventArgs e)
        {
            Cus = NHcri.UseCriteriaAPI_GetCustomersWithOrders();
        }
    }
}

 hibernate.cfg.xml

hibernate.cfg.xml

<? xml version="1.0" encoding="utf-8"  ?>

< hibernate-configuration   xmlns ="urn:nhibernate-configuration-2.2"   >
   < session-factory >
     < property  name ="connection.provider" > NHibernate.Connection.DriverConnectionProvider, NHibernate </ property >
     < property  name ="connection.driver_class" > NHibernate.Driver.OracleDataClientDriver, NHibernate </ property >
     < property  name ="connection.connection_string" >
      Data Source = (
          description = (
            address_list = (
              address = (HOST = DataBaseIP)(PROTOCOL = TCP)(PORT = 端口))
          )
          (connect_data = (
            service_name = 数据库名字))
        );
        User Id=UserID;Password=PassWord;
     </ property >
     < property  name ="show_sql" > false </ property >
     < property  name ="dialect" > NHibernate.Dialect.Oracle10gDialect </ property >
     < property  name ="query.substitutions" > true 1, false 0, yes 'Y', no 'N' </ property >
     < property  name ="proxyfactory.factory_class" >
      NHibernate.ByteCode.Castle.ProxyFactoryFactory,
      NHibernate.ByteCode.Castle
     </ property >
     < mapping  assembly ="NHibernateSample.Domain" />
   </ session-factory >
</ hibernate-configuration >

 

记录第一个Nhibernate 程序.在大家的帮助下还是顺利的完成了。

 

 严重感谢群里的各位童鞋。。。  

 

想班长大人了...

 

未完待续...