hibernate与spring整合

1. DeptDao.java

// 数据访问层

public class DeptDao {

// Spring与Hibernate整合： IOC容器注入

private SessionFactory sessionFactory;

public void setSessionFactory(SessionFactory sessionFactory) {

this.sessionFactory = sessionFactory;

}

// 保存一个记录

// Spring与Hibernate整合：事务管理交给Spring

public void save(Dept dept) {

sessionFactory.getCurrentSession().save(dept);

}

}

2. DeptService

public class DeptService {

private DeptDao deptDao;

public void setDeptDao(DeptDao deptDao) {

this.deptDao = deptDao;

}

public void save(Dept dept){

deptDao.save(dept);

}

}

3. App.java  测试

public class App {

// 容器

private ApplicationContext ac = new ClassPathXmlApplicationContext("bean.xml");

@Test

public void testApp() throws Exception {

DeptService deptServie = (DeptService) ac.getBean("deptService");

System.out.println(deptServie.getClass());

deptServie.save(new Dept());

}

}

4. bean.xml 配置  【Spring管理SessionFactory的3中方式】

<?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:context="http://www.springframework.org/schema/context"

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.xsd

      http://www.springframework.org/schema/context

         http://www.springframework.org/schema/context/spring-context.xsd

         http://www.springframework.org/schema/aop

         http://www.springframework.org/schema/aop/spring-aop.xsd

         http://www.springframework.org/schema/tx

      http://www.springframework.org/schema/tx/spring-tx.xsd">

<!-- dao 实例 -->

<bean id="deptDao" class="cn.itcast.dao.DeptDao">

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

</bean>

<!-- service 实例 -->

<bean id="deptService" class="cn.itcast.service.DeptService">

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

</bean>

<!-- 数据源配置 -->

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

<property name="driverClass" value="com.mysql.jdbc.Driver"></property>

<property name="jdbcUrl" value="jdbc:mysql:///hib_demo"></property>

<property name="user" value="root"></property>

<property name="password" value="root"></property>

<property name="initialPoolSize" value="3"></property>

<property name="maxPoolSize" value="10"></property>

<property name="maxStatements" value="100"></property>

<property name="acquireIncrement" value="2"></property>

</bean>

<!-- ###########Spring与Hibernate整合  start########### -->

<!-- 方式（1）直接加载hibernate.cfg.xml文件的方式整合

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

<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>

</bean>    -->

<!-- 方式（2）连接池交给spring管理  【一部分配置写到hibernate中，一份分在spring中完成】

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

<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>

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

</bean> -->

<!-- 【推荐】方式（3）所有的配置全部都在Spring配置文件中完成 -->

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

<!-- 注入连接池对象 -->

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

<!-- hibernate常用配置 -->

<property name="hibernateProperties">

<props>

<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

<prop key="hibernate.show_sql">true</prop>

<prop key="hibernate.hbm2ddl.auto">update</prop>

</props>

</property>

<!-- hibernate映射配置

<property name="mappingLocations">

<list>

<value>classpath:cn/itcast/entity/*.hbm.xml</value>

</list>

</property>

-->

<property name="mappingDirectoryLocations">

<list>

<value>classpath:cn/itcast/entity/</value>

</list>

</property>

</bean>

<!-- ###########Spring与Hibernate整合  end########### -->

<!-- 事务配置 -->

<!-- a. 配置事务管理器类 -->

<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">

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

</bean>

<!-- b. 配置事务增强(拦截到方法后如果管理事务?) -->

<tx:advice id="txAdvice" transaction-manager="txManager">

<tx:attributes>

<tx:method name="*" read-only="false"/>

</tx:attributes>

</tx:advice>

<!-- c. Aop配置 -->

<aop:config>

 <aop:pointcut expression="execution(* cn.itcast.service.*.*(..))" id="pt"/>

 <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>

</aop:config>

</beans>