Spring.Net + NHibernate 入门例子

Spring.Net 是一个很强大的框架,在java里非常的火,NHibernate也是从java里移植过来的.不过和Java下面的用法有所区别.下面我们以一个实例来说说他们在.net下的用法.
新建一个项目:名字叫SpringHiberate.
首先,我们修改我们的配置文件web.config:


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




<configuration>


<configSections>


<sectionGroup name="spring">


<section name="context" type="Spring.Context.Support.WebContextHandler, Spring.Web"/>


<section name="objects" type="Spring.Context.Support.DefaultSectionHandler, Spring.Core"/>


</sectionGroup>


<section name="SpringOverrideProperty" type="System.Configuration.NameValueSectionHandler"/>


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


</configSections>




<SpringOverrideProperty>


<add key="DbProvider.ConnectionString" value="Data Source=192.168.1.21;Database=FastSpring20;User ID=sa;Password=oilchem2007;Trusted_Connection=False"/>


<add key="SystemInit.IsDebug" value="true"/>


<add key="SystemInit.Level" value="4"/>


</SpringOverrideProperty>







<!-- Spirng.Net 配置 -->


<spring>


<context>


<resource uri="config://spring/objects"/>


<resource uri="assembly://SpringHiberate/SpringHiberate/spring_bean_dao.xml"/>


</context>


<objects xmlns="http://www.springframework.net"/>


</spring>





<appSettings/>




<connectionStrings/>




<system.web>


<compilation debug="true" />


<authentication mode="Windows" />





<httpModules>


<add name="Spring" type="Spring.Context.Support.WebSupportModule, Spring.Web"/>


</httpModules>





<httpHandlers>


<add verb="*" path="*.aspx" type="Spring.Web.Support.PageHandlerFactory, Spring.Web"/>


</httpHandlers>


</system.web>


</configuration>



然后我们添加一个Model类User.cs:

1

using System;
2


3

namespace SpringHiberate.dao.model
4





{
5

public class User
6





{
7

private Int32 id;
8


9

public Int32 Id
10





{
11



get

{ return id; }
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set

{ id = value; }
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}
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private string name;
15


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public string Name
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{
18



get

{ return name; }
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set

{ name = value; }
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}
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private string email;
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public string Email
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{
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get

{ return email; }
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set

{ email = value; }
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}
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}
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}我们再在User.cs目录里添加一个文件User.hbm.xml,文件的生成操作为嵌入的资源


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


<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">


<class name="SpringHiberate.dao.model.User,SpringHiberate" table="FS_User" lazy="false">


<id name="Id" column="id" type="Int32">


<generator class="native" />


</id>


<property name="Name" column="uname" type="String" length="50" />


<property name="Email" column="uemail" type="String" length="50" />


</class>


</hibernate-mapping>然后我们写一个SQLProvider类SQLProvider.cs.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Spring.Data.Common;

namespace SpringHiberate.dao
{
public class SQLProvider : IDbProvider
{
#region IDbProvider 成员
private string _connectionString = "";
public string ConnectionString
{
get
{
return this._connectionString;
}
set
{
this._connectionString = value;
}
}

public IDbCommand CreateCommand()
{
return null;
}

public object CreateCommandBuilder()
{
return null;
}

public IDbConnection CreateConnection()
{
return null;
}

public IDbDataAdapter CreateDataAdapter()
{
return null;
}

public IDbDataParameter CreateParameter()
{
return null;
}

public string CreateParameterName(string name)
{
return null;
}

public string CreateParameterNameForCollection(string name)
{
return null;
}

public IDbMetadata DbMetadata
{
get {
return null;
}
}

public string ExtractError(Exception e)
{
return null;
}

public bool IsDataAccessException(Exception e)
{
return false;
}

#endregion
}
}
在写一个UserDao类(UserDao.cs)来操作
using System;
using System.Collections;
using Spring.Data.NHibernate.Support;
using SpringHiberate.dao.model;

namespace SpringHiberate.dao
{
public class UserDao : HibernateDaoSupport
{
public void Save(User user)
{
HibernateTemplate.Save(user);
}

public void Delete(User user)
{
HibernateTemplate.Delete(user);
}

public void Update(User user)
{
HibernateTemplate.Update(user);
}

public IList FindAll()
{
return HibernateTemplate.LoadAll(typeof(User));
}

public User Find(Object ID)
{
return (User)HibernateTemplate.Load(typeof(User), ID);
}
}
}
现在代码部分基本写完,我们开始写spring的配置文件(spring_bean_dao.xml),文件的生成操作也为嵌入的资源,他配置了数据库操作以及DAO部分,页面的操作DAO也是依赖注入的


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


<objects xmlns="http://www.springframework.net"


xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"


xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">



<object id="DbProvider" type="SpringHiberate.dao.SQLProvider, SpringHiberate">


<property name="ConnectionString" value="Data Source=192.168.1.21;Database=FastSpring20;User ID=sa;Password=oilchem2007;Trusted_Connection=False" />


</object>




<object id="SessionFactory" type="Spring.Data.NHibernate.LocalSessionFactoryObject, Spring.Data.NHibernate12">


<property name="DbProvider" ref="DbProvider" />


<property name="MappingAssemblies">


<list>


<value>SpringHiberate</value>


</list>


</property>


<property name="HibernateProperties">


<dictionary>


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


<entry key="hibernate.dialect" value="NHibernate.Dialect.MsSql2000Dialect" />


<entry key="hibernate.connection.driver_class" value="NHibernate.Driver.SqlClientDriver" />


<entry key="show_sql" value="true" />


</dictionary>


</property>


</object>




<object id="HibernateTransactionManager" type="Spring.Data.NHibernate.HibernateTransactionManager, Spring.Data.NHibernate12">


<property name="DbProvider" ref="DbProvider" />


<property name="sessionFactory" ref="sessionFactory" />


</object>




<object id="TransactionInterceptor" type="Spring.Transaction.Interceptor.TransactionInterceptor, Spring.Data">


<property name="TransactionManager" ref="HibernateTransactionManager" />


<property name="TransactionAttributeSource">


<object type="Spring.Transaction.Interceptor.AttributesTransactionAttributeSource, Spring.Data" />


</property>


</object>




<object id="UserDao" type="SpringHiberate.dao.UserDao">


<property name="SessionFactory" ref="SessionFactory" />


</object>




<object type="~/Default.aspx">


<property name="UserDao" ref="UserDao" />


</object>


</objects>修改Default.aspx.cs文件里的内容:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using SpringHiberate.spring;
using SpringHiberate.dao;

namespace SpringHiberate
{
public partial class _Default : System.Web.UI.Page
{
private UserDao userDao;

public UserDao UserDao
{
get { return userDao; }
set { userDao = value; }
}

protected void Page_Load(object sender, EventArgs e)
{
Response.Write(hello.Name);
SpringHiberate.dao.model.User u = new SpringHiberate.dao.model.User();
u.Name = "safa";
u.Email = "eicesoft@126.com";
userDao.Save(u);
}
}
}

好了,完成了.很简单吧.下面运行一下,然后看看数据库是不是新建了一条数据.
Spring.Net简化了数据框架NHibernate的操作.对页面进行注入,实现了松耦合.
Spring.Net远远不止这些.其他的方面在以后的文章中继续介绍
项目的源码打包:/Files/eicesoft/SpringHiberate.zip