关于SSH 用户注册的例子
这两天一直在集成SSH，错误百出 今天终于搞定了 菜鸟一个 呵呵
之前是先把struts2和spring集成了 然后把spring和hibernate集成了 大概知道怎么回事之后 今天终于搞定了

/** * @author jeedroid */package com.jeedroid.dao;import com.jeedroid.model.User;public interface UserDao{public abstract boolean addUser(User user);}

package com.jeedroid.daoimpl;import org.hibernate.SessionFactory;import org.springframework.dao.DataAccessException;import org.springframework.orm.hibernate3.HibernateTemplate;import com.jeedroid.dao.UserDao;import com.jeedroid.model.User;public class UserDaoImpl implements UserDao{private SessionFactory sessionFactory;public void setSessionFactory(SessionFactory sessionFactory){this.sessionFactory = sessionFactory;}@Overridepublic boolean addUser(User user){try {HibernateTemplate hibernateTemplate =new HibernateTemplate(sessionFactory);hibernateTemplate.saveOrUpdate(user);return true;} catch (DataAccessException e) {e.printStackTrace();return false;}}}

/** * @author jeedroid */package com.jeedroid.action;import com.jeedroid.daoimpl.UserDaoImpl;import com.jeedroid.model.User;import com.opensymphony.xwork2.ActionSupport;public class RegisterAction extends ActionSupport{private User user;private UserDaoImpl userDaoImpl;public User getUser(){return user;}public void setUser(User user){this.user = user;}public void setUserDaoImpl(UserDaoImpl userDaoImpl){this.userDaoImpl = userDaoImpl;}@Overridepublic String execute() throws Exception{if(userDaoImpl.addUser(user))return SUCCESS;elsereturn INPUT;}}

<struts>

<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />

<package name="struts2" extends="struts-default">
<action name="register" class="com.jeedroid.action.RegisterAction">
<property name="userDaoImpl">
<ref local="userDaoImpl"/>
</property>
</bean>

之前一直报attempt to create saveOrUpdate event with null entity这个错误，后来把User.java里的含参构造函数去掉就行了 应该是struts2传值过来时实例化的问题

只是一个简单的用户注册 没有加事务了什么的 看看就行了 呵呵