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.