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在上篇文章中，我们已经把struts2+hibernate3.2+spring2.0的开发环境搭建成功，这篇我们接着上篇，继续讲解struts2+hibernate3.2+spring2.0的整合过程。
步骤二：在MySQL数据库中创建数据库、数据表，建表语句：
create database mytest;use mytest;CREATE TABLE users ( id int(11) NOT NULL, firstname varchar(50) NOT NULL, lastname varchar(50) NOT NULL, age int(11) NOT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;在此我们需要说明各层之间的调用关系，action层-->service层-->dao层，调用关系我们在spring中配置。
步骤三：创建hibernate对数据表的持久层访问。
在com.tgb.bean包中创建User.java和User.hbm.xml文件，建立User对象和数据表users的映射。
User.java
package com.tgb.bean;public class User { private Integer id; private String firstname; private String lastname; private int age; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getFirstname() { return firstname; } public void setFirstname(String firstname) { this.firstname = firstname; } public String getLastname() { return lastname; } public void setLastname(String lastname) { this.lastname = lastname; } public int getAge() { return age; } public void setAge(int age) { this.age = age; }} User.hbm.xml 步骤四：创建操作User对象的接口和实现类。
在com.tgb.dao中创建操作User对象的接口
UserDAO.java
package com.tgb.dao;import java.util.List;import com.tgb.bean.User;public interface UserDAO { public void saveUser(User user); public void removeUser(User user); public User findUserById(Integer id); public List findAllUsers(); public void updateUser(User user);} 在com.tgb.dao.impl中创建操作User对象的接口实现类 UserDAOImpl.java
package com.tgb.dao.impl;import java.util.List;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import com.tgb.bean.User;import com.tgb.dao.UserDAO;public class UserDAOImpl extends HibernateDaoSupport implements UserDAO { @SuppressWarnings("unchecked") public List findAllUsers() { String hql = "from User user order by user.id desc"; return (List ) this.getHibernateTemplate().find(hql); } public User findUserById(Integer id) { User user = (User) this.getHibernateTemplate().get(User.class, id); return user; } public void removeUser(User user) { this.getHibernateTemplate().delete(user); } public void saveUser(User user) { this.getHibernateTemplate().save(user); } public void updateUser(User user) { this.getHibernateTemplate().update(user); }} 步骤五：创建service层的接口和实现类 在com.tgb.service中创建调用UserDAO的接口
UserService.java
package com.tgb.service;import java.util.List;import com.tgb.bean.User;public interface UserService { public List findAll(); public void save(User user); public void delete(User user); public User findUserById(Integer id); public void update(User user);} 在com.tgb.service.impl中创建调用UserDAO的接口实现类 UserServiceImpl.java
package com.tgb.service.impl;import java.util.List;import com.tgb.bean.User;import com.tgb.dao.UserDAO;import com.tgb.service.UserService;public class UserServiceImpl implements UserService { private UserDAO userDao; public UserDAO getUserDao() { return userDao; } public void setUserDao(UserDAO userDao) { this.userDao = userDao; } public void delete(User user) { this.userDao.removeUser(user); } public List findAll() { return this.userDao.findAllUsers(); } public User findUserById(Integer id) { return this.findUserById(id); } public void save(User user) { this.userDao.saveUser(user); } public void update(User user) { this.userDao.updateUser(user); }} 步骤六：创建action层的对于SavaUser和ListUser的处理类。 SaveUserAction.java
package com.tgb.action.user;import com.opensymphony.xwork2.ActionSupport;import com.tgb.bean.User;import com.tgb.service.UserService;public class SaveUserAction extends ActionSupport { private User user; private UserService userService; public UserService getUserService() { return userService; } public void setUserService(UserService userService) { this.userService = userService; } public User getUser() { return user; } public void setUser(User user) { this.user = user; } @Override public String execute() throws Exception { this.userService.save(this.user); return SUCCESS; }} ListUserAction.java package com.tgb.action.user;import java.util.Map;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;import com.tgb.service.UserService;public class ListUserAction extends ActionSupport { private UserService userService; public UserService getUserService() { return userService; } public void setUserService(UserService userService) { this.userService = userService; } @Override public String execute() throws Exception { Map request = (Map) ActionContext.getContext().get("request"); request.put("list", userService.findAll()); return SUCCESS; }} 步骤七：创建用于保存用户的save.jsp页面和显示用户的list.jsp页面。 save.jsp