Spring、Struts2+Spring+Hibernate整合步骤

所使用的Jar包：

Hibernate：

Spring（使用MyEclipse自动导入框架功能）

Struts2:

注解包和MySql驱动包：

1、配置Hibernate和Spring：

<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:context="http://www.springframework.org/schema/context" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
	http://www.springframework.org/schema/context 
	http://www.springframework.org/schema/context/spring-context-2.5.xsd 
	http://www.springframework.org/schema/tx 
	http://www.springframework.org/schema/tx/spring-tx-2.5.xsd 
	http://www.springframework.org/schema/aop 
	http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
	<context:annotation-config />
	<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/ssh?useUnicode=true&characterEncoding=UTF-8" />
		<property name="username" value="root" />
		<property name="password" value="" />
		<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
		<property name="initialSize" value="1" />
		<!--连接池中保留的最大连接数。Default: 15 -->
		<property name="maxActive" value="500" />
		<!--最大空闲值,当经过一段峰值以后，连接会被释放掉一部分，直到释放到maxidle -->
		<property name="maxIdle" value="2" />
		<!--最小空闲值 当空闲的连接数小于阀值时，连接池会主去的去申请一些连接 -->
		<property name="minIdle" value="1" />
	</bean>
	<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" >
		<property name="dataSource" ref="dataSource" />
		<property name="mappingResources">
			<list>
				<value>cn/raffaello/hbm/Person.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<value>
				hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
				hibernate.hbm2ddl.auto=update
				hibernate.show_sql=true
				hibernate.format_sql=false
			</value>
		</property>
	</bean>
	<bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<tx:annotation-driven transaction-manager="txManager"/>
	<bean id="personIDao" class="cn.raffaello.dao.impl.PersonDaoImpl" />
	<bean id="personIService" class="cn.raffaello.service.impl.PersonServiceImpl">
		<property name="personIDao" ref="personIDao" />
	</bean>
</beans>

2、新建实体和映射文件：

public class Person {
	public Person(){}
	public Person(String name) {
		super();
		this.name = name;
	}
	private Integer id;
	private String name;
	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;
	}
}

<hibernate-mapping package="cn.raffaello.model">
	<class name="Person" table="PERSON">
		<id name="id" column="ID">
			<generator class="native" />
		</id>
		<property name="name" column="NAME" />
	</class>
</hibernate-mapping>

3、新建DaoBean，并在Bean中实现部分方法，使用@Resource给SessionFactory注入:

public interface PersonIDao {
	void add(Person person);
	void update(Person person);
	Person getById(Integer id);
	List<Person> getPersons();
}

public class PersonDaoImpl implements PersonIDao {

	@Resource(name="sessionFactory")
	private SessionFactory sessionFactory;
	@Override
	public void add(Person person) {
		sessionFactory.getCurrentSession().persist(person);
	}

	@Override
	public void update(Person person) {
		sessionFactory.getCurrentSession().merge(person);
	}

	@Override
	public Person getById(Integer id) {
		return (Person)sessionFactory.getCurrentSession().get(Person.class, id);
	}

	@SuppressWarnings("unchecked")
	@Override
	public List<Person> getPersons() {
		return sessionFactory.getCurrentSession().createQuery("from Person").list();
	}

}

5、新建ServiceBean，并实现部分方法；在ServiceBean的头部添加@Transactional 注解，使用该ServiceBean纳入Spring事务管理；

public interface PersonIService {

	void add(Person person);
	void update(Person person);
	Person getById(Integer id);
	List<Person> getPersons();
}

@Transactional
public class PersonServiceImpl implements PersonIService {
	private PersonIDao personIDao;
	
	@Override
	public void add(Person person) {
		personIDao.add(person);
	}

	@Override
	public void update(Person person) {
		personIDao.update(person);
	}

	@Transactional(readOnly=true)
	@Override
	public Person getById(Integer id) {
		return personIDao.getById(id);
	}

	@Transactional(readOnly=true)
	@Override
	public List<Person> getPersons() {
		return personIDao.getPersons();
	}

	public PersonIDao getPersonIDao() {
		return personIDao;
	}

	public void setPersonIDao(PersonIDao personIDao) {
		this.personIDao = personIDao;
	}

}

6、测试Spring和Hibernate的代码：

public class test {

	private static PersonIService personIService;
	@BeforeClass
	public static void init(){
		ApplicationContext cxt=new ClassPathXmlApplicationContext("beans.xml");
		personIService=(PersonIService)cxt.getBean("personIService");
	}
	@Test
	public void test() {
		personIService.add(new Person("克露丝"));
		personIService.add(new Person("Json"));
		personIService.add(new Person("布尔曼"));
		personIService.add(new Person("HHH"));
		personIService.add(new Person("汤姆"));
	}

	@Test
	public void testUpdate(){
		Person person=personIService.getById(1);
		person.setName("汉克丝 hankesi");
		personIService.update(person);
	}
	
	@Test
	public void testList(){
		List<Person> list=personIService.getPersons();
		for(Person per : list){
			System.out.println(per.getName());
		}
	}
}

7、整合Struts2+Spring+Hibernate，将下面代码添加到Web.xml中：

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:beans.xml</param-value>
  </context-param>
  <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

8、在Struts.xml中 进行如下配置：

	<constant name="struts.118n.encoding" value="UTF-8" />  
	<!-- Action 后缀 -->
    <constant name="struts.action.extension" value="do,action" />  
    <!-- 设置浏览器是否缓存静态内容，默认值为true,开发环境下建议设置为false -->  
    <constant name="struts.serve.static.browserCache" value="false" />  
    <!-- 当Struts　修改文件以后，是否重新加载该文件，默认为false,推荐开发环境下设置为true -->  
    <constant name="struts.configuration.xml.reload" value="true" />  
    <!-- 开发模式下可以打印更详细的错误信息 -->  
    <constant name="struts.devMode" value="false" />  
    <!-- 默认视图主题  -->  
    <constant name="struts.ui.theme" value="simple" />  
    <!-- 与Spring集成是，指定有Spring创建Action对象 -->  
    <constant name="struts.objectFactory" value="spring" /> 
    <package name="raffaello" namespace="/raffaello" extends="struts-default">
    	<action name="main_*" class="cn.raffaello.action.MainAction" method="{1}">
    		<result name="message">/WEB-INF/pages/message.jsp</result>
    		<result name="list">/WEB-INF/pages/list.jsp</result>
    	</action>
    </package>

9、新建Action：MainAction:

public class MainAction {
	private String message;
	private Person person;
	private PersonIService personIService;
	public String hello(){
		setMessage("struts2 测试消息！");
		return "message";
	}

	public String save(){
		if(person!=null && !person.getName().equals("")){
			personIService.add(person);
			setMessage("添加成功");
		}else{
			setMessage("对象为空");
		}
		return "message";
	}
	public String list(){
		List<Person> list=personIService.getPersons();
		HttpServletRequest request=ServletActionContext.getRequest(); 
		request.setAttribute("PersonList", list);
		return "list";
	}
	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}

	public Person getPerson() {
		return person;
	}

	public void setPerson(Person person) {
		this.person = person;
	}

	public PersonIService getPersonIService() {
		return personIService;
	}

	public void setPersonIService(PersonIService personIService) {
		this.personIService = personIService;
	}
	
}

10、添加测试代码和获取的测试代码：

	<form action="/SSH2/raffaello/main_save.do" method="post">
    		添加人员     <a target="_blank" href="/SSH2/raffaello/main_list.do">人员列表</a>
    		<hr />
    		姓名：<input type="text" name="person.name" />
    		<input type="submit" value="提交">
    	</form>

<span style="white-space:pre">	</span><c:forEach items="${PersonList}" var="per">
    		${per.name}
    	</c:forEach>