三大框架（Struts2+Hibernate+spring）整合案例

package com.dao.impl; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction; import com.bean.UserBean; import com.dao.UserDAO; import com.util.HibernateUtil; public class UserDAOImpl implements UserDAO { private Transaction tr = null; private Session session = null; public UserBean userLogin(UserBean user) { UserBean users = null; try { session =HibernateUtil.getSession(); String hql = "From UserBean as u where u.userName=:name and u.userPass =:pass"; Query query = session.createQuery(hql); query.setString("name",user.getUserName()); query.setString("pass",user.getUserPass()); users = (UserBean)query.uniqueResult(); } catch (Exception e) { e.printStackTrace(); }finally{ HibernateUtil.close(); } return users; } public void addUser(UserBean user) { try { session =HibernateUtil.getSession(); tr =session.beginTransaction(); session.save(user); tr.commit(); } catch (Exception e) { e.printStackTrace(); tr.rollback(); }finally{ HibernateUtil.close(); } } public boolean delUser(int userId) { boolean bool = false; try { session =HibernateUtil.getSession(); tr = session.beginTransaction(); UserBean user = (UserBean)session.get(UserBean.class,userId); session.delete(user); tr.commit(); bool = true; } catch (Exception e) { e.printStackTrace(); tr.rollback(); }finally{ HibernateUtil.close(); } return bool; } public List<UserBean> getUser() { List<UserBean> list = null; try { session =HibernateUtil.getSession(); Query query = session.createQuery("From UserBean as u"); list = query.list(); } catch (Exception e) { e.printStackTrace(); }finally{ HibernateUtil.close(); } return list; } public void updateUser(UserBean user) { try { session =HibernateUtil.getSession(); tr = session.beginTransaction(); UserBean users = (UserBean)session.get(UserBean.class,user.getUserId()); users.setUserName(user.getUserName()); users.setUserPass(user.getUserPass()); session.update(users); tr.commit(); } catch (Exception e) { e.printStackTrace(); tr.rollback(); }finally{ HibernateUtil.close(); } } public UserBean getUserById(int userId) { UserBean user = null; try { session = HibernateUtil.getSession(); user = (UserBean)session.get(UserBean.class,userId); } catch (Exception e) { e.printStackTrace(); } return user; } }