Spring 3.2 JPA2.0 XML 配置方式

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

end.