Spring4+Hibernate4整合

Spring对Hibernate提供了非常好的支持，包括Session管理、声明式事务管理、代码模板。用Spring包装Hibernate，使用起来非常方便，代码量大大减少，以往每个DAO方法中的重复代码不需要写了，而且因为使用了Spring，直接面向接口编程，整个架构有了层次上的提升。

具体实现的步骤：

1) add Spring Capabilities

2) add Hibernate Capabilities 将hibernate.cfg.xml文件不生成，而是配置指定在applicationContext.xml文件中。

<?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-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd ">
<!--数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver">
</property>
<property name="url" value="jdbc:oracle:thin:@localhost:1521:HLX">
</property>
<property name="username" value="scott"></property>
<property name="password" value="hsx"></property>
</bean>

<!-- 会话工厂-->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle9Dialect
</prop>
<prop key="hibernate.show_sql">
true
</prop>
<prop key="hibernate.format_sql">
true
</prop>
<prop key="hibernate.hbm2dll.auto">
update
</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>com/hlx/entity/Person.hbm.xml</value>
</list>
</property>
</bean>

3）add Librarities (SH.jar)

4）在Dao类继承HibernateDaoSupport 使用getHibernateTemplate()方法获取HibernateTemplate实例完成持久化操作

public class PersonDaoImpl extends HibernateDaoSupport implements PersonDao {

@Override
public void save(Person person) {
// TODO Auto-generated method stub
this.getHibernateTemplate().save(person);

}

/*
* finder methods for HQL strings
* (non-Javadoc)
* @see com.hlx.dao.PersonDao#list()
*/
@Override
public List<Person> list() {
// TODO Auto-generated method stub
return (List<Person>) this.getHibernateTemplate().find("from Person");
}

@Override
public void delete(Person person) {
// TODO Auto-generated method stub
this.getHibernateTemplate().delete(person);

}

}

5）配置文件applicationContext.xml

<!-- programming do thing -->
<!-- dao -->
<bean id="personDaoImpl" class="com.hlx.dao.impl.PersonDaoImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>

<!-- service -->
<bean id="personService" class="com.hlx.service.impl.PersonServiceImpl">
<property name="personDao" ref="personDaoImpl"/>
</bean>

<!-- spring do thing -->
<!-- tx bean -->
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>

<!-- declare tx advice -->
<tx:advice id="txAdvice">
<tx:attributes>
<tx:method name="*save*" propagation="REQUIRED" read-only="false"/>
<tx:method name="*list*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>

<!-- aop  -->
<aop:config>
<aop:pointcut expression="execution(* com.hlx.service.*.*(..))" id="mycut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="mycut"/>
</aop:config>

6）测试

@Test
public void test() {

//HibernateTransactionManager
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

PersonService manager = (PersonService) context
.getBean("personService");

//		manager.save(new Person(new BigDecimal(30), "周芳"));
manager.save_delete(new Person(new BigDecimal(30), ""));
List<Person> list = manager.list();
for (Person person : list) {
System.out.println(person.getPid() + "\t" + person.getPname());
}

}