spring2.5.6调整jpa-第三节

一、根据第二节进行修改
????? * 在Spring中配置JPA EntityManagerFactory
????? * 配置注解声明式事务
????? * 用JPA的上下文注入持久化对象

????? 划红线的部分是修改以及新增的部分，根据此图依次贴出代码；

1、UserDAOImpl

package com.iskyshop.dao.impl;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.springframework.stereotype.Component;

import com.iskyshop.dao.UserDAO;
import com.iskyshop.model.User;
@Component
public class UserDAOImpl implements UserDAO {
	@PersistenceContext
	private EntityManager entityManager;
	

	public EntityManager getEntityManager() {
		return entityManager;
	}


	public void setEntityManager(EntityManager entityManager) {
		this.entityManager = entityManager;
	}


	@Override
	public void saveUser(User user) {
		// TODO Auto-generated method stub
		entityManager.persist(user);
		
	}

}

?2、beans.xml

<?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: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-2.5.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
	<context:annotation-config />
	<context:component-scan base-package="com.iskyshop" />

	<!--配置数据源 -->
	<bean
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="locations">
			<value>classpath:jdbc.properties</value>
		</property>
	</bean>

	<bean id="dataSource" destroy-method="close"
		class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="${jdbc.driverClassName}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
	</bean>

	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="persistenceXmlLocation" value="classpath:persistence.xml" />
		<property name="persistenceUnitName" value="iskyshop" />
		<property name="persistenceProvider" ref="persistenceProvider" />
		<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
		<property name="jpaDialect" ref="jpaDialect" />
		<property name="jpaProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
				<prop key="javax.persistence.validation.mode">none</prop>
			</props>
		</property>
	</bean>
	<!-- 用于指定持久化实现厂商类 -->
	<bean id="persistenceProvider" class="org.hibernate.ejb.HibernatePersistence" />
	<!-- 用于设置JPA实现厂商的特定属性 -->
	<bean id="jpaVendorAdapter"
		class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
		<property name="showSql" value="true" />
		<property name="generateDdl" value="true" />
		<property name="database" value="MYSQL" />
	</bean>
	<!-- 用于指定一些高级特性 -->
	<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />

	<!-- 事务管理器 -->
	<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
		<property name="dataSource" ref="dataSource" />
	</bean>
	<tx:annotation-driven transaction-manager="txManager" />
</beans>

?3、persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
	xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
        http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
	<persistence-unit name="iskyshop"
		transaction-type="RESOURCE_LOCAL" />
</persistence>

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