Spring 3.2 JPA2.0 XML 配置方式

使用maven工程，pom.xml文件如下

<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>

<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>1.8.5</version>
</dependency>

<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.8.Final</version>
</dependency>

<!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.2.8.Final</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.27</version>
</dependency>
<!-- <dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.0</version>
</dependency>-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.4.RELEASE</version>
<scope>test</scope>
</dependency>
</dependencies>

dao接口如下：

package cn.test.dao;

/**
* Created by libo on 13-12-19.
*/
public interface IDao {

void save(Object entity);
}

dao实现类如下：

package cn.test.dao;

import org.springframework.stereotype.Component;

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

/**
* Created by libo on 13-12-19.
*/
@Component
public class DaoJpaImpl implements IDao {

@PersistenceContext
private EntityManager entityManager;

@Override
public void save(Object entity) {
entityManager.persist(entity);
}
}

service 接口：

package cn.test.service;

import cn.test.entity.User;

/**
* Created by libo on 13-12-19.
*/
public interface UserService {
void save(User user);
}

service 实现类：

package cn.test.service;

import cn.test.dao.IDao;
import cn.test.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

/**
* Created by libo on 13-12-19.
*/
@Service
public class UserServiceImpl implements UserService {

@Autowired
private IDao iDao;

@Override
//@Transactional(propagation= Propagation.REQUIRED)
@Transactional(readOnly = false)
public void save(User user) {
iDao.save(user);
}
}

实体类：

package cn.test.entity;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;

/**
* Created by libo on 13-12-19.
*/
@Entity
@Table(name = "myUser")
public class User implements Serializable{

@Id
private String id;

private String name;

private int age;

public String getId() {
return id;
}

public void setId(String id) {
this.id = id;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
}

spring-config.xml 其中task相关内容可以删除

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:task="http://www.springframework.org/schema/task"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd"> <context:annotation-config/>
<context:component-scan base-package="cn.test"/>
<task:annotation-driven/>

<bean id="em" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="packagesToScan" value="cn.test.entity"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
</props>
</property>
</bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/spring_jpa"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="em"/>
</bean>
<!-- 可以使用@Transactional配置事务 -->
<tx:annotation-driven transaction-manager="transactionManager"/>

<bean id="persistenceExceptionTranslationPostProcessor"
class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
</beans>

测试类：

package cn.test.service;

import cn.test.entity.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
* Created by libo on 13-12-19.
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:spring-config.xml")
public class UserServiceImplTest {

@Autowired
private UserService userService;

@Test
public void testSave() throws Exception {
User user = new User();
user.setId("u_id");
user.setName("u_name");
user.setAge(23);
userService.save(user);
}
}

运行Junit测试就可以了。连接的是MySQL数据库.