spring与hibernate整合(三种方式)

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>