Spring2.5 + Struts2 + Hibernate3 整合 [2/2]

上一篇 Spring2.5 + Struts2 + Hibernate3 整合 [1/2]

1.      修改 spring 的配置文件，配置整合 hibernate

在 /WEB-INF/classes/spring.xml 中加入：

<!-- 配置 dataSource -->     < bean id = "dataSource" class = "org.apache.commons.dbcp.BasicDataSource" destroy-method = "close" >        < property name = "driverClassName" value = "com.mysql.jdbc.Driver" />        < property name = "url" value = "jdbc:mysql://localhost:3306/dev?useUnicode=true&amp;characterEncoding=utf-8" />        < property name = "username" value = "root" />        < property name = "password" value = "root" />        <!-- 连接池启动初始连接数 -->        < property name = "initialSize" value = "1" />        <!-- 连接池最大活动连接数 -->        < property name = "maxActive" value = "50" />        <!-- 最大空闲值 -->        < property name = "maxIdle" value = "2" />        <!-- 最小空闲值 -->        < property name = "minIdle" value = "1" />     </ bean >     <!-- 整合 Hibernate3 的 sessionFactory -->     < bean id = "sessionFactory" class = "org.springframework.orm.hibernate3.LocalSessionFactoryBean" >        < property name = "dataSource" ref = "dataSource" />        < property name = "mappingResources" >            < list >               < value > com/erison/action/Person.hbm.xml </ value >            </ list >        </ property >        < property name = "hibernateProperties" >            < props >               < prop key = "hibernate.dialect" > org.hibernate.dialect.MySQL5Dialect </ prop >               < prop key = "hibernate.show_sql" > false </ prop >               < prop key = "hibernate.format_sql" > false </ prop >            </ props >        </ property >     </ bean >     <!-- 配置 spring 针对 hibernate 的事务管理器 -->     < bean id = "txManager" class = "org.springframework.orm.hibernate3.HibernateTransactionManager" >        < property name = "sessionFactory" ref = "sessionFactory" />     </ bean >     <!-- 配置使用注解的方式来使用事务 -->     < tx:annotation-driven transaction-manager = "txManager" />

* 至此，整合 Hibernate3 已经完毕，要想使用还需进行以下步骤。

2.      创建类及测试

1.        创建 DTO 类 com.erison.action.Person ：

package com.erison.action;   public class Person {     private long id ;     private String name ;     private int age ;     public long getId() {        return id ;     }     public void setId( long id) {        this . id = id;     }     public String getName() {        return name ;     }     public void setName(String name) {        this . name = name;     }     public int getAge() {        return age ;     }     public void setAge( int age) {        this . age = age;     } }

 

2.        创建 DB 类 com.erison.action.DBPerson ：

package com.erison.action; import org.hibernate.SessionFactory; import org.springframework.orm.hibernate3.HibernateTemplate; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional;   public class DBPerson {     HibernateTemplate template = null ;     public void setSessionFactory(SessionFactory sessionFactory) {        template = new HibernateTemplate(sessionFactory);     }         @Transactional (propagation=Propagation. REQUIRED )     public void insert(Person person) {        template .save(person);        template .get(DBPerson. class , 1);     }         @Transactional (readOnly= true )     public Person find( long