usersdao.java

用hibernate实现用户权限管理模块

package dao;
import org.hibernate.Session;
import org.hibernate.Transaction;

import vo.*;
import factory.*;
public class UsersDao {
	public void insertUser(Users user) {
		Session session = HibernateSessionFactory.getSession();
		Transaction tx = null;
		try {
			tx = session.beginTransaction();
			session.save(user);
			tx.commit();
		} catch (Exception e) {
			if (tx != null)
				tx.rollback();
			System.out.println(e);
		} finally {
			session.close();
		}
	}

	public void updateUsers(Users user) {
		Session session = HibernateSessionFactory.getSession();
		Transaction tx = null;
		try {
			tx = session.beginTransaction();
			session.update(user);
			tx.commit();
		} catch (Exception e) {
			if (tx != null)
				tx.rollback();
			System.out.println(e);
		} finally {
			session.close();
		}
	}

	public void deleteUsers(Users user) {
		Session session = HibernateSessionFactory.getSession();
		Transaction tx = null;
		try {
			tx = session.beginTransaction();
			session.delete(user);
			tx.commit();
		} catch (Exception e) {
			if (tx != null)
				tx.rollback();
			System.out.println(e);
		} finally {
			session.close();
		}
	}

	public Users searchUsers(int id) {
		Session session = HibernateSessionFactory.getSession();
		Transaction tx = null;
		Users user = null;
		try {
			tx = session.beginTransaction();
			user = (Users) session.get(Users.class, Integer.valueOf(id));
			tx.commit();
		} catch (Exception e) {
			if (tx != null)
				tx.rollback();
			System.out.println(e);
		} finally {
			session.close();
		}
		return user;
	}
	public static void main(String args[]){
		Users user=new Users();
		UsersDao udao=new UsersDao();
		user.setName("李秋锋");
		user.setPowerstr("1");
		user.setPassword("123456");
		udao.insertUser(user);
	}
}