s2sh框架搭建（基于spring aop)

对于spring aop 是如何管理事务的，请看一下：http://bbs.csdn.net/topics/290021423

1.applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"   <!-- 新加入 -->
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd   "> 
<!--新加入 datasource -->
<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/hjzgg_test?characterEncoding=UTF-8" />
<property name="username" value="root" />
<property name="password" value="hjzgg5211314" />
</bean>

<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="configLocation"
value="classpath:hibernate.cfg.xml">
</property>
<!--新加入 将dataSource注入到sessionFactory中 -->
<property name="dataSource" ref="dataSource"></property>

<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
hibernate.hbm2ddl.auto=update
hibernate.show_sql=true
hibernate.format_sql=false
hibernate.cache.use_second_level_cache=true
hibernate.cache.use_query_cache=false
hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
　　　　　　　　  <!--hibernate.current_session_context_class=thread  不需要了-->
</value>
</property>

<!--通过配置文件的方式获取数据源-->
<property name="mappingResources">
<list>
<!-- 以下用来列出所有的PO映射文件 -->
<value>person.cfg.xml</value>
</list>
</property>
</bean>

<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<bean id="personDao" class="com.xunchang.PersonDaoImpl">
<!-- 采用依赖注入传入SessionFactory的引用 -->
<property name="sessionFactory" ref="sessionFactory"/>
</bean>

<bean id="service" class="com.hjzgg.service.XunChageService">
<property name="personDao" ref="personDao"/>
</bean>

<bean id="login" class="com.xunchang.LoginAction">
<property name="service" ref="service"/>
</bean>

<!-- 配置那些类的方法进行事务管理,需要aopalliance-1.0.jar和aspectjweaver.jar，当前com.neusoft.leehom.service包中的子包，
类中所有方法需要，还需要参考tx:advice的设置 -->
<!-- 需要引入tx的命名空间 -->
<!-- 这是事务通知操作，使用的事务管理器引用自 transactionManager -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 指定哪些方法需要加入事务，这里懒惰一下全部加入，可以使用通配符来只加入需要的方法 -->
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="get*" propagation="REQUIRED" read-only="true"/>
<tx:method name="query*" propagation="REQUIRED" read-only="true"/>
<tx:method name="*" propagation="REQUIRED" />
</tx:attributes>
</tx:advice>
<!-- 需要引入aop的命名空间 -->
<aop:config>
<!-- 切入点指明了在执行Service的所有方法时产生事务拦截操作 -->
<aop:pointcut id="daoMethods" expression="execution(* com.hjzgg.service.*.*(..))" />
<!-- 定义了将采用何种拦截操作，这里引用到 txAdvice -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="daoMethods" />
</aop:config>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>

2. dao层代码

package com.xunchang;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class PersonDaoImpl implements PersonDao{

private SessionFactory sessionFactory;

public Session getSession() {
return sessionFactory.getCurrentSession();
}

public SessionFactory getSessionFactory() {
return sessionFactory;
}

public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

@Override
public Person get(Integer id) {
return (Person) this.getSession().get(Person.class, id);
}

@Override
public void save(Person ps) {
this.getSession().save(ps);
}

@Override
public List<Person> findAllPerson() {

/*
*    问题： home402 is not mapped [from home402];
*    最后发现了问题所在，hql查询时使用的from Xxx，Xxx不是实体类的名称，而是 EntityName （Hibernate注解）。
如：

@Entity
@Table(name="QING_AO_CENTER_INFO")
public class QingAoCenterInfo {
......
}
此处，

@Entity后并没有显示的指明EntityName，因此默认采用实体类的名称。

@Entity(name="QING_AO_CENTER_INFO")
@Table(name="QING_AO_CENTER_INFO")
public class QingAoCenterInfo {
......
}
可以发现，显示地指明了 EntityName，因此在使用hql查询的时候，要from   QING_AO_CENTER_INFO，而不是from  QingAoCenterInfo ；

centerList = manager.find("from QING_AO_CENTER_INFO center where center.type = ? and center.centerName = ?", new Object[]{type,centerName});
*/
Session session = this.getSession();
//      Transaction tran = session.beginTransaction();
session.save(new Person(null, "我是hjzgg", 23));
List<Person> list = session.createQuery("from Person").list();
//      tran.commit();
return list;
}

}

3.service层部分代码：

package com.hjzgg.service;

import java.util.List;

import com.xunchang.Person;
import com.xunchang.PersonDao;

public class XunChageService {
private PersonDao personDao;

public Person get(Integer id){
return personDao.get(id);
}

public void save(Person ps){
personDao.save(ps);
}
public List<Person> findAllPerson(){
return personDao.findAllPerson();
}
public PersonDao getPersonDao() {
return personDao;
}
public void setPersonDao(PersonDao personDao) {
this.personDao = personDao;
}
}

4.action部分代码：

package com.xunchang;

import java.util.List;

import com.hjzgg.service.XunChageService;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {
private XunChageService service;

@Override
public String execute() throws Exception{
List<Person> list_person =  service.findAllPerson();
ActionContext.getContext().getSession().put("person", list_person);
return "success";
}

public XunChageService getService() {
return service;
}

public void setService(XunChageService service) {
this.service = service;
}

}

5.和数据库映射的pojo：

package com.xunchang;

import java.io.Serializable;
/*
*待解决问题，为什么一定要实现 Serializeable
*/
public class Person implements Serializable{
private Integer personId;
private String person_name;
private Integer person_age;

public Person(){
}

public Person(Integer personId, String person_name, Integer person_age) {
super();
this.personId = personId;
this.person_name = person_name;
this.person_age = person_age;
}

public Integer getPersonId() {
return personId;
}
public void setPersonId(Integer personId) {
this.personId = personId;
}
public String getPerson_name() {
return person_name;
}
public void setPerson_name(String person_name) {
this.person_name = person_name;
}
public Integer getPerson_age() {
return person_age;
}
public void setPerson_age(Integer person_age) {
this.person_age = person_age;
}
}

6.hibernate映射文件xml

<?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">
<hibernate-mapping package="com.xunchang">
<class name="Person" table="home402">
<!-- 定义持久化类的表示属性 -->
<id name="personId" column="personId" type="java.lang.Integer">
<!-- 定义主键生成策略 -->
<generator class="identity"/>
</id>
<property name="person_name" column="person_name" type="java.lang.String"/>
<property name="person_age" column="person_age" type="java.lang.Integer"/>
</class>
</hibernate-mapping>

7.struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package namespace="/" name="struts2" extends="struts-default">

<!-- package中的标签必须按照如下顺序配置
result-types,interceptors,default-interceptor-ref,default-action-ref,default-class-ref,global-results,global-exception-mappings,action*(就是所有的action放到最后)
-->
<!-- 自定义拦截器 ,如果有拦截器，必须放在package标签内的第一位-->
<interceptors>
<!-- 在这里可以添加自己的拦截器
<interceptor name="myInterceptor" class="自定义pojo类"></interceptor>
-->
<interceptor-stack name="myInterceptorStack">
<!--
<interceptor-ref name="myInterceptor"></interceptor-ref>
-->
<interceptor-ref name="defaultStack"></interceptor-ref>
</interceptor-stack>
</interceptors>

<global-results>
<result></result>
</global-results>

<action name="login" class="login">
<result name="success">/servlet/MyServlet</result>
</action>

</package>
</struts>