Hibernate和spring集成


知识点： 1、在框架集成中spring这个框架充当的角色是黏合的作用，所以在做集成的时候我们需要将hibennate的配置文件交给spring启动。
2、目标
3、通知
4、代理
5、sessionFactory的注入

首先看一下目录结构：


步骤一：反转出相对应的实体，嗦一句，实体必须要有主键（代码如下）：

package cn.zhuojingxinxi.entity;/** * Person entity. *  * @author MyEclipse Persistence Tools */public class Person implements java.io.Serializable {// Fieldsprivate Long pid;private String pname;private String pass;// Constructors/** default constructor */public Person() {}/** full constructor */public Person(String pname, String pass) {this.pname = pname;this.pass = pass;}// Property accessorspublic Long getPid() {return this.pid;}public void setPid(Long pid) {this.pid = pid;}public String getPname() {return this.pname;}public void setPname(String pname) {this.pname = pname;}public String getPass() {return this.pass;}public void setPass(String pass) {this.pass = pass;}}

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!--     Mapping file autogenerated by MyEclipse Persistence Tools--><hibernate-mapping>    <class name="cn.zhuojingxinxi.entity.Person" table="PERSON" schema="SCOTT">        <id name="pid" type="java.lang.Long">            <column name="PID" precision="22" scale="0" />            <generator />        </id>        <property name="pname" type="java.lang.String">            <column name="PNAME" length="50" />        </property>        <property name="pass" type="java.lang.String">            <column name="PASS" length="50" />        </property>    </class></hibernate-mapping>

步骤二、编写Dao层，请一定要编写接口（代码如下）：

PersonDao接口：

package cn.zhuojingxinxi.dao;import cn.zhuojingxinxi.entity.Person;public interface PersonDao {public void savePerson(Person person);}

PersonDaoImp实现类（为了能够拿到session必须继承HibernateDaoSupport）：

package cn.zhuojingxinxi.dao.impl;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import cn.zhuojingxinxi.dao.PersonDao;import cn.zhuojingxinxi.entity.Person;public class PersonDaoImpl extends HibernateDaoSupport implements PersonDao {public void savePerson(Person person) { this.getHibernateTemplate().save(person);}}

步骤三、编写biz层（即业务处理层）（同样必须写接口）：
PersonService接口：

package cn.zhuojingxinxi.biz;import cn.zhuojingxinxi.entity.Person;public interface PersonService {public void savePerson(Person person);}

PersonServiceImp实现类（实现类中操作dao层中的方法，所以必须将PersonDao注入进来）：

package cn.zhuojingxinxi.biz.impl;import cn.zhuojingxinxi.biz.PersonService;import cn.zhuojingxinxi.dao.PersonDao;import cn.zhuojingxinxi.entity.Person;public class PersonServiceImpl implements PersonService{   private PersonDao personDao=null;   public void setPersonDao(PersonDao personDao) {this.personDao = personDao;}    public void savePerson(Person person) {    personDao.savePerson(person);}}

步骤四、编写测试类代码（假如还要和struts2集成，不要开tomcat测试，因为加载速度慢，所以编写测试类是有必要的）

package cn.zhuojingxinxi.test;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import cn.zhuojingxinxi.biz.PersonService;import cn.zhuojingxinxi.dao.PersonDao;import cn.zhuojingxinxi.entity.Person;public class Test {public static void main(String[] args) {ApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"applicationContext.xml"});// SessionFactory sessionFactory= (SessionFactory)context.getBean("sessionFactory");//Session session=sessionFactory.openSession();////System.out.println(session);  PersonDao  dao=(PersonDao)context.getBean("personDao");  PersonService personService=(PersonService)context.getBean("personService");  Person p=new  Person(); p.setPname("xiaohua"); p.setPass("123321");  personService.savePerson(p); }}

步骤五、applicationContext.xml的编写（非常重要）

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop"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-2.0.xsd                    http://www.springframework.org/schema/tx                     http://www.springframework.org/schema/tx/spring-tx-2.0.xsd                    http://www.springframework.org/schema/aop                     http://www.springframework.org/schema/aop /spring-aop-2.0.xsd"                                                                                ><bean id="sessionFactory"ref="sessionFactory"></property>   </bean>      <!-- 目标 -->   <bean id="personService" ref="personDao"></property>      </bean>      <!-- 定义一个事务管理器(通知) -->      <bean id="transactionManage" ref="sessionFactory"></property>   </bean>      <!-- 代理 -->   <bean id="personServiceProxy" ref="personService"></property>     <property name="transactionManager" ref="transactionManage"></property>     <property name="transactionAttributes">        <props>          <prop key="save*">PROPAGATION_REQUIRED</prop>        </props>     </property>      </bean></beans>

需要注意的是：必须配置开头的tx、aop，否则事务是不会提交的。

源码下载请点这里：