SSH（Struts2-Spring-Hibernate）

1.新建一个web项目（导入相应的需要的jar包，也可以直接用maven在管理）

2.分别建立struts.xml，applicationContext.xml(spring)，hibernate.cfg.xml的配置文件

  a.struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 修改struts支持动态方法调用 -->
<constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>
 <!-- 告知Struts2运行时使用Spring来创建对象 -->
<constant name="struts.objectFactory" value="spring"></constant>

<package name="User" namespace="/"  extends="struts-default">
	<action name="UserAction"  class="UserActionSpring">
		<result name="loginsuccess">/index.jsp</result>
		<result name="loginfail">/login.jsp</result>
	</action>
</package>
</struts>

<注意：action里面的class名称是spring配置文件里面的定义的id名称>

  b.hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
  "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
	<session-factory>
		<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
		<property name="connection.url">jdbc:mysql://localhost:3306/cars</property>
		<property name="connection.username">root</property>
		<property name="connection.password">495873513</property>
		<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hbm2ddl.auto">none</property><!--数据库有表就设置值none，没有第一次设为create-->
		<property name="show_sql">true</property><!--log4j数据显示sql查询语句-->
		<property name="format_sql">true</property>
		<mapping resource="com/oracle/ssh/model/beans/User.hbm.xml" />
	</session-factory>
</hibernate-configuration>

c.applicationContext.xml(spring)

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	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/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd " default-autowire="byName">
<!-- 配置spring管理整个hibernate的对象创建，包括sessionFactory,和事务AOP管理对象 -->
	<bean  id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
		<property name="configLocation"  value="classpath:hibernate.cfg.xml"></property>
	</bean>
	
	<!-- 声明spring的事务管理器bean组件 -->
	<bean id="transactionManager"  class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory"  ref="sessionFactory"></property>
	</bean> 
	
	<!-- 声明spring的AOP事务管理器 -->
	<tx:annotation-driven  transaction-manager="transactionManager"></tx:annotation-driven> 
	
	<!-- 上面是把spring创建的sessionFactory以及spring AOP的事物管理对象以及注解绑定的事务管理对象都配好 -->
	<context:component-scan base-package="com.oracle.ssh.model"></context:component-scan>

	<!-- 这里将struts的action类配置到spring的工厂里面表示spring接管了struts组件里面的action创建这个工作 -->
		<!-- id定义名字，class具体的类，scope="prototype"定义非单例 -->
	<bean  id="UserActionSpring" class="com.oracle.ssh.control.action.UserAction"></bean>
	<bean  id="service" class="com.oracle.ssh.model.service.UserService"></bean>
	<bean  id="dao"  class="com.oracle.ssh.model.daos.UserDAOimp"></bean>
</beans>

<注意：在beans里面设置的是自动映射default-autowire="byName"，所以在接管的bean里面配置是对应相应类的属性名称>

3.建立dao层文件，来测试框架

 a.jsp传过来的值存在是beans里面

package com.oracle.ssh.model.beans;

import java.io.Serializable;

public class User implements  Serializable {
	
	private int userid;
	private String username;
	private String password;
        //提供get()和set()方法
}

 b.在struts的配置里面找到的是UserAction这个实例

package com.oracle.ssh.control.action;

import com.opensymphony.xwork2.ActionSupport;
import com.oracle.ssh.model.beans.User;
import com.oracle.ssh.model.service.UserService;

public class UserAction extends ActionSupport {

	private User user;
	public User getUser() {
		return user;
	}
	public void setUser(User user) {
		this.user = user;
	}
	//service在spring的配置bean的是主动映射ByName
	public UserService service;
	public UserService getService() {
		return service;
	}
	public void setService(UserService service) {
		this.service = service;
	}
	
	public String login()
	{
		System.out.println(user);
		User resultuser=service.login(user);
		System.out.println(resultuser);
		if(resultuser!=null)
		return "loginsuccess";
		else
		return "loginfail";
	}
}

 c.在Useraction里面传给UserSerivce来完成（UserAction相当于一个中转站不用太多的业务逻辑代码）

package com.oracle.ssh.model.service;

import com.oracle.ssh.model.beans.User;
import com.oracle.ssh.model.daos.UserDAO;

public class UserService {

	/**service是服务层，专门为action和dao层做服务*/
	public UserDAO dao;
	public UserDAO getDao() {
		return dao;
	}

	public void setDao(UserDAO dao) {
		this.dao = dao;
	}
	
	public User login(User user)
	{
		return dao.login(user);
	}
	
	
}

d.在UserDAOimp实现类里面来执行查询代码

package com.oracle.ssh.model.daos;

import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.oracle.ssh.model.beans.User;

public class UserDAOimp extends HibernateDaoSupport implements UserDAO {

	@Override
	public User login(User user) {
		Criteria  c=getSession().createCriteria(User.class);
		c.add(Restrictions.eq("username", user.getUsername()));
		c.add(Restrictions.eq("password", user.getPassword()));
		List<User> l=(List<User>)c.list();
		System.out.println(l);
		if(l.size()>0)
			return l.get(0);
		else
			return null;
	}

}

以上基本就是ssh搭建的步骤及测试！一个来自新手的总结，不好的地方多多包涵