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 {

 

    // SpringHibernate整合: IOC容器注入

    private SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {

        this.sessionFactory = sessionFactory;

    }

 

    // 保存一个记录

    // SpringHibernate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)

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