Spring中配合hibernate使用的简单例子

最近在看SPRING和hibernate,学习了spring和hibernate之间整合,下面举出一个例子予以说明.

首先,可以注入的是sessionfactory,因为sessionfactory的Datasource可以用spring注入.比如一个下面的例子,是对对象进行增加的

接口IUserDAO:

publicinterfaceIUserDAO{

publicvoidinsert(Useruser);

}

User.java:

publicclassUser{

privateStringname;

publicStringgetName(){

returnname;

}

publicvoidsetName(Stringname){

this.name=name;

}

}

UserDao.java:

(这里省去了import等东西了)

publicclassUserDAOimplementsIUserDAO{

privateSessionFactorysessionFactory;

publicUserDAO(){

}

publicUserDAO(SessionFactorysessionFactory){

this.setSessionFactory(sessionFactory);

}

//注入sessionFactory

publicvoidsetSessionFactory(

SessionFactorysessionFactory){

this.sessionFactory=sessionFactory;

}

publicvoidinsert(Useruser){

Sessionsession=sessionFactory.openSession();

Transactiontx=session.beginTransaction();

session.save(user);

tx.commit();

session.close();

}

关键的base-config.xml:

<beans>

//基本的datasource,存放实际连接串等东西

<beanid="dataSource"

class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<propertyname="driverClassName">

<value>com.mysql.jdbc.Driver</value>

</property>

<propertyname="url">

<value>jdbc:mysql://localhost:3306/SpringHibernateDemo</value>

</property>

<propertyname="username">

<value>root</value>

</property>

<propertyname="password">

<value>123456</value>

</property>

</bean>

<beanid="sessionFactory"class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<propertyname="dataSource">

<refbean="dataSource"/>

</property>

<propertyname="mappingResources">

<list>

<value>liaoo/springhibernatear/User.hbm.xml</value>

</list>

</property>

<propertyname="hibernateProperties">

<props>

<propkey="hibernate.dialect">

org.hibernate.dialect.MySQLDialect

</prop>

</props>

</property>

    </bean>

<beanid="userDAO"class="liao.springhibernate.UserDAO">

<propertyname="sessionFactory">

<refbean="sessionFactory"/>

</property>

</bean>

可以看到,这里对userDAO类的sessionFactory进行了注入,而参考到其中的bean-config.xml里sessionFactory里实现.可以看到,可以将datasource注入到LocalSessionFactoryBean中.要注意的是org.springframework.orm.hibernate3.LocalSessionFactoryBean是hibernate3整合使用的,org.springframework.orm.hibernate.LocalSessionFactoryBean是hibernate2中使用的.

最后是测试程序

publicstaticvoidmain(String[]args){

ApplicationContextcontext=

newFileSystemXmlApplicationContext(

"beans-config.xml");

IUserDAOuserDAO=(IUserDAO)context.getBean("userDAO");

Useruser=newUser();

user.setName("jackyrong");

             userDAO.insert(user);