struts2,hibernate,spring三大框架实现的增删改查

package servicesimpl; import java.util.ArrayList; import java.util.List; import bean.UserBean; import dao.UserDao; import services.UserService; public class UserServicesImpl implements UserService{ private UserDao ud; public UserDao getUd() { return ud; } public void setUd(UserDao ud) { this.ud = ud; } public int addUser(UserBean user) { int flag=0; try { ud.addUser(user); flag=1; } catch (Exception e) { e.printStackTrace(); } return flag; } public boolean checkUser(UserBean user) { try { List list=ud.checkUser(user); if(list.size()==0) { return false; } Object[] user1=(Object[]) list.get(0); if(user1[0]==null||user1[1]==null) { return false; } } catch (Exception e) { e.printStackTrace(); } return true; } public int delUser(int id) { int flag=0; try { ud.delUser(id); flag=1; } catch (Exception e) { e.printStackTrace(); } return flag; } public List getAllUser() { List list=new ArrayList(); try { list=ud.getAllUser(); } catch (Exception e) { e.printStackTrace(); } return list; } public List getAllUserIUP() { List list=new ArrayList(); try { list=ud.getAllUser(); } catch (Exception e) { e.printStackTrace(); } return list; } public UserBean getUserById(int id) { UserBean user=new UserBean(); try { user=ud.getUserById(id); } catch (Exception e) { e.printStackTrace(); } return user; } public int modifyUser(UserBean user) { int flag=0; try { ud.modifyUser(user); flag=1; } catch (Exception e) { e.printStackTrace(); } return flag; } }