spring整合jpa

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1.1. Spring整合jpa

1.1.1. 新建工程

1.1.2. 引入jar包

1. 所使用hibernat版本：hibernate-release-4.3.7.Final，Lib\jpa目录和lib\required目录下所有的jar包，

2. mysql驱动包

3. spring版本spring-framework-4.1.3.RELEASE，libs下所有的jar包

4. tomcat jdbc连接池 tomcat-jdbc-7.0.53.jar和tomcat-juli-7.0.53.jar

5. 日志包commons-logging-1.1.3.jar

6. aopalliance-1.0.jar

7. 。。。。。。

1.1.3. 持久化配置文件persistence.xml

persistence.xml

<?xmlversion="1.0"encoding="UTF-8"?>

<persistencexmlns="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"version="1.0">

<!-- persistence-unit

name指定持久化单元的名字

transaction-type指定事务类型为本地事务

-->

<persistence-unitname="jpaDemo"transaction-type="RESOURCE_LOCAL">

<propertyname="hibernate.dialect"value="org.hibernate.dialect.MySQL5Dialect"/>

<propertyname="hibernate.connection.driver_class"value="com.mysql.jdbc.Driver"/>

<propertyname="hibernate.connection.username"value="root"/>

<propertyname="hibernate.connection.password"value="root"/>

<propertyname="hibernate.connection.url"value="jdbc:mysql://localhost:3306/mysql?useUnicode=true&characterEncoding=UTF-8"/>

<propertyname="hibernate.hbm2ddl.auto"value="update"/>

<propertyname="hibernate.show_sql"value="true"/>

</properties>

</persistence-unit>

</persistence>

1.1.4. 实体类Person.xml

Person.xml

package com.morris.entity;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.Id;

@Entity

public class Person {

@Id

@GeneratedValue

private Integer id;

private String name;

private Integer age;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public Integer getAge() {

return age;

}

public void setAge(Integer age) {

this.age = age;

}

public Person( String name, Integer age) {

super();

this.name = name;

this.age = age;

}

public Person() {

super();

// TODO Auto-generated constructor stub

}

@Override

public String toString() {

return "Person [id=" + id + ", name=" + name + ", age=" + age + "]";

}

1.1.5. Dao接口

IpersonDao.Java

package com.morris.dao.inter;

import com.morris.entity.Person;

public interface IPersonDao {

void save(Person person);

}

1.1.6. Dao接口具体实现类

PersonDaoImpl.java

package com.morris.dao.impl;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;

import javax.transaction.Transactional;

import org.springframework.stereotype.Repository;

import com.morris.dao.inter.IPersonDao;

import com.morris.entity.Person;

@Repository("personDao")

public class PersonDaoImpl implements IPersonDao {

@PersistenceContext

private EntityManager entityManager;

@Transactional

public void save(Person person) {

entityManager.persist(person);

}

1.1.7. Service接口

IpersonService.java

package com.morris.service.inter;

import com.morris.entity.Person;

public interface IPersonService {

void save(Person person);

}

1.1.8. Service接口具体实现类

PersonServiceImpl.java

package com.morris.service.impl;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import com.morris.dao.inter.IPersonDao;

import com.morris.entity.Person;

import com.morris.service.inter.IPersonService;

@Service("personService")

public class PersonServiceImpl implements IPersonService {

@Autowired

private IPersonDao personDao;

public void save(Person person) {

personDao.save(person);

}

1.1.9. Spring配置文件

Spring.xml

<?xmlversion="1.0"encoding="UTF-8"?>

<beansxmlns="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"

xmlns:p="http://www.springframework.org/schema/p"xmlns:cache="http://www.springframework.org/schema/cache"

xmlns:jpa="http://www.springframework.org/schema/data/jpa"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-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/aop

http://www.springframework.org/schema/aop/spring-aop-3.1.xsd

http://www.springframework.org/schema/tx

http://www.springframework.org/schema/tx/spring-tx-3.1.xsd

http://www.springframework.org/schema/cache

http://www.springframework.org/schema/cache/spring-cache-3.1.xsd

http://www.springframework.org/schema/data/jpa

http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">

<beanid="dataSource"class="org.apache.tomcat.jdbc.pool.DataSource">

<propertyname="driverClassName"value="com.mysql.jdbc.Driver"/>

<propertyname="url"value="jdbc:mysql://localhost:3306/mysql"/>

<propertyname="username"value="root"/>

<propertyname="password"value="root"/>

<propertyname="initialSize"value="5"/>

<propertyname="minIdle"value="5"/>

<propertyname="maxIdle"value="30"/>

<propertyname="maxActive"value="100"/>

<propertyname="maxWait"value="1000"/>

</bean>

<beanid="entityManagerFactory"

class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">

<propertyname="dataSource"ref="dataSource"/>

<propertyname="persistenceXmlLocation"value="classpath:META-INF/persistence.xml"/>

<propertyname="persistenceUnitName"value="jpaDemo"/>

<propertyname="jpaVendorAdapter">

<beanclass="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">

<propertyname="showSql"value="true"/>

<propertyname="generateDdl"value="false"/>

</bean>

</property>

</bean>

<context:component-scanbase-package="com.morris"

use-default-filters="false">

<context:include-filtertype="annotation"

expression="org.springframework.stereotype.Service"/>

<context:include-filtertype="annotation"

expression="org.springframework.stereotype.Repository"/>

</context:component-scan>

<tx:annotation-driventransaction-manager="transactionManager"/>

<beanid="transactionManager"class="org.springframework.orm.jpa.JpaTransactionManager">

<propertyname="entityManagerFactory"ref="entityManagerFactory"/>

</bean>

<jpa:repositoriesbase-package="com.morris.dao"

entity-manager-factory-ref="entityManagerFactory"

transaction-manager-ref="transactionManager"/>

</beans>

1.1.10. 测试文件

TestPerson.java

package com.morris.test;

import org.junit.Test;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.morris.entity.Person;

import com.morris.service.inter.IPersonService;

public class TestPerson {

@Test

public void save() {

ClassPathXmlApplicationContext applicationContext =new ClassPathXmlApplicationContext("spring.xml");

IPersonService personService = (IPersonService) applicationContext.getBean("personService");

personService.save(new Person("morris131",131));

}

1.1.11. 结果

后台打印sql语句

Hibernate: insert into Person (age, name) values (?, ?)

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