spring与hibernate整合(三种方式)

Spring与Hibernate整合关键点：

         1） Hibernate的SessionFactory对象交给Spring创建；

         2） hibernate事务交给spring的声明式事务管理。

SSH整合：

         Spring与Struts；

         Spring与hibernate整合；

 

 

SH整合步骤：

         1）引入jar包

                   连接池/数据库驱动包

                   Hibernate相关jar

                   Spring核心包(5个)

                   Springaop 包(4个)

                   spring-orm-3.2.5.RELEASE.jar                 【spring对hibernate的支持】

                   spring-tx-3.2.5.RELEASE.jar                  【事务相关】

         2）配置

                   hibernate.cfg.xml

                   bean.xml

         3）搭建环境、单独测试

步骤实现

        

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">           <bean id="deptDao" class="cn.itcast.dao.DeptDao">         <property name="sessionFactory" ref="sessionFactory">property>     bean>             <bean id="deptService" class="cn.itcast.service.DeptService">         <property name="deptDao" ref="deptDao">property>     bean>             <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>                                     <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">                 <property name="dataSource" ref="dataSource">property>                         <property name="hibernateProperties">             <props>                 <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialectprop>                 <prop key="hibernate.show_sql">trueprop>                 <prop key="hibernate.hbm2ddl.auto">updateprop>             props>         property>                         <property name="mappingDirectoryLocations">             <list>                 <value>classpath:cn/itcast/entity/value>             list>         property>     bean>                                 <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">         <property name="sessionFactory" ref="sessionFactory">property>     bean>         <tx:advice id="txAdvice" transaction-manager="txManager">         <tx:attributes>             <tx:method name="*" read-only="false"/>         tx:attributes>     tx:advice>         <aop:config>          <aop:pointcut expression="execution(* cn.itcast.service.*.*(..))" id="pt"/>          <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>     aop:config>     beans>

运行结果：数据库中增添一条新的记录

可以发现使用的是cglib代理方式的管理事务(因为service没有实现接口)