userdao.java

结合WebWork+Spring+Hibernate

package news.wzt.DAO.impl;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import news.wzt.DAO.BaseDAO;
import news.wzt.DAO.IUserDAO;
import news.wzt.vo.User;

public class UserDAO extends BaseDAO implements IUserDAO {

	public void saveUser(User user) {
		
		Session session=getSession();
		Transaction tx=session.beginTransaction();
		session.save(user);
		tx.commit();
		session.close();

	}

	public User validateUser(String userid, String password) {
		
		Session session=getSession();
		String hql="from User user where user.userid=? and user.password=?";
		Query query=session.createQuery(hql);
		query.setParameter(0, userid);
		query.setParameter(1, password);
		List users=query.list();
		if(users.size()!=0){
			
			User user=(User)users.get(0);
			return user;
		}
		return null;
	}

}