struts2+hibernate3+spring3项目快速开发（图文）之3:搭建项目结构（分包、类实现、方法编写）...

package service;
import java.util.List;
import model.Users;public interface IUsersService {
 public List<Users> findAll();
 public List<Users> findByName(String username);
 public Users findByUid(Integer uid);
 public void addUsers(Users u) throws Exception ;
 public void updateUsers(Users u) throws Exception ;
 public void delUsers(Integer uid) throws Exception ;
 public Users login(String username,String password);}
--

package service;
import java.util.List;
import model.Users;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import dao.IUsersDAO;
import dao.UsersDAO;public class UsersService implements IUsersService {
 private static final Logger log = LoggerFactory.getLogger(UsersService.class);
 private IUsersDAO usersDAO=null; public void setUsersDAO(IUsersDAO usersDAO) {
 this.usersDAO = usersDAO;
 } public void addUsers(Users u) throws Exception {
 usersDAO.save(u); 
 } public void delUsers (Integer uid) throws Exception {
 usersDAO.delete(findByUid(uid));
 } public List<Users> findAll() {
 return usersDAO.findAll();
 } public List<Users> findByName(String username) {
 return usersDAO.findByUsername(username);
 } public Users findByUid(Integer uid) {
 return usersDAO.findById(uid);
 } public Users login(String username, String password) {
 List list = usersDAO.findByUsername(username); if(null==list||list.size()==0)
 return null;
 Users u=(Users) usersDAO.findByUsername(username).get(0);
 if(null==u)
 return null;
 if(username.equals(u.getUsername())&&password.equals(u.getPassword()))
 return u;
 else
 return null;
 } public void updateUsers (Users u) throws Exception {
 usersDAO.attachDirty(u);
 }
}

package action;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import model.Users;
import service.IUsersService;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class UsersAction extends ActionSupport{ private static final Logger log = LoggerFactory.getLogger
(UsersAction.class);
 private Integer uid=new Integer(0);// 用于修改删除时传参数
 private Users u=new Users();//用于增改
 private List<Users> userList=new ArrayList<Users>();//用于查询
 private IUsersService usersService=null; 
 public String addUser() throws Exception{
 try {
 usersService.addUsers(u);
 } catch (Exception e) {
 log.error("保存用户错误",e);
 return ERROR;
 }
 return SUCCESS;
 }  public String listUser() throws Exception{ 
 userList=usersService.findAll();
 return SUCCESS;
 } public String editUser() throws Exception{
 try {
 u=usersService.findByUid(uid);
 } catch (Exception e) {
 log.error("修改用户错误",e);
 return ERROR;
 }
 return SUCCESS;
 } public String updateUser() throws Exception{
 try {
 usersService.updateUsers(u);
 } catch (Exception e) {
 log.error("更新用户错误",e);
 return ERROR;
 }
 return SUCCESS;
 }  public String delUser() throws Exception{
 try {
 usersService.delUsers(uid);
 } catch (Exception e) {
 log.error("删除用户错误",e);
 return ERROR;
 }
 return SUCCESS;
 }  public String login() throws Exception{
 try {
 Users loginUser=usersService.login(u.getUsername(), u.getPassword());
 if(null!=loginUser){
 ActionContext context=ActionContext.getContext();
 context.getSession().put("LOGINUSER",loginUser);
 return SUCCESS;
 }
 } catch (Exception e) {
 log.error("登录查询错误",e);
 return ERROR;
 }
 return INPUT;
 }  public void setUsersService(IUsersService usersService) {
 this.usersService = usersService;
 } 
 public Users getU() {
 return u;
 }
 public void setU(Users u) {
 this.u = u;
 }  public List<Users> getUserList() {
 return userList;
 } public void setUserList(List<Users> userList) {
 this.userList = userList;
 } public Integer getUid() {
 return uid;
 } public void setUid(Integer uid) {
 this.uid = uid;
 }

}