spring+hibernate ---laobai

spring+hibernate ---laobai

biz包:
package com.etc.biz; import java.util.List; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.etc.entity.Animal; public interface AnimalBiz
{
List<Animal> findAll();
Animal findById(int aid);
void add(Animal an);
}
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package com.etc.biz; import java.util.List; import org.hibernate.Session;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.etc.dao.AnimalDao;
import com.etc.entity.Animal; public class AnimalBizImp implements AnimalBiz
{
//让业务持有dao的抽象接口,通过spring注入dao实例
private AnimalDao dao; public AnimalDao getDao() {
return dao;
} public void setDao(AnimalDao dao) {
this.dao = dao;
} public List<Animal> findAll()
{ return dao.findAll();
} public Animal findById(int aid)
{
return dao.findById(aid);
} public void add(Animal an)
{
dao.add(an);
}
}
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dao包:
package com.etc.dao; import java.util.List; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.etc.entity.Animal; public interface AnimalDao
{
List<Animal> findAll();
Animal findById(int aid);
void add(Animal an);
}
----------------------------------------------------------------------------------------------
package com.etc.dao; import java.util.List; import org.hibernate.Session;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.etc.entity.Animal; public class AnimalDaoImp extends HibernateDaoSupport implements AnimalDao
{
public List<Animal> findAll()
{
String hql = "from Animal";
return this.getHibernateTemplate().find(hql);
} public Animal findById(int aid)
{
return this.getHibernateTemplate().get(Animal.class, aid);
} public void add(Animal an)
{
this.getHibernateTemplate().save(an);
}
}
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test包: package com.etc.test; import java.util.List; import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext; import com.etc.biz.AnimalBiz;
import com.etc.dao.AnimalDao;
import com.etc.entity.Animal; public class Test
{
public static void main(String[] args)
{
BeanFactory fac = new ClassPathXmlApplicationContext("applicationContext.xml"); AnimalBiz biz = (AnimalBiz) fac.getBean("biz"); List<Animal> list = biz.findAll(); for(Animal a:list)
System.out.println(a); /*Animal an = biz.findById(1);
System.out.println(an);*/ /*try
{
Animal an = new Animal("火鸡", 2);
biz.add(an);
System.out.println("插入成功!");
}
catch (Exception e)
{
System.out.println("插入失败!");
e.printStackTrace(); }
*/
}
}
---------------------------------------------------------------------------------------------
applicationContext.xml配置: <?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation=
"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"> <bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation"
value="file:src/hibernate.cfg.xml">
</property>
</bean>
<!-- 创建dao对象 实现类-->
<bean id="dao" class="com.etc.dao.AnimalDaoImp">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!-- 创建biz对象实现类 -->
<bean id="biz" class="com.etc.biz.AnimalBizImp">
<property name="dao" ref="dao"/>
</bean>
<!-- 创建事务管理器 -->
<bean id="tm" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean> <!-- 配置事务通知的规则 -->
<tx:advice id="myadvice" transaction-manager="tm">
<tx:attributes> <!-- 配置事务的传播特性 -->
<!-- add方法需要事务-->
<tx:method name="add*" propagation="REQUIRED"/> <tx:method name="find*" read-only="true"/> <!-- find开头的方法只读,不能修改数据 -->
</tx:attributes>
</tx:advice>
<!-- 配置切入 -->
<aop:config>
<aop:pointcut expression="execution(* com.etc.biz.AnimalBiz.*(..))" id="mypc"/>
<!-- 引用tx通知,引用切线mypc -->
<aop:advisor advice-ref="myadvice" pointcut-ref="mypc"/>
</aop:config>
</beans>

  

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