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)