persondaoimpl.java

留言管理程序_使用Struts _ DAO _ Hibernate完成

package org.lxh.struts.note.impl;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.lxh.struts.note.dao.PersonDAO;
import org.lxh.struts.note.factory.DefaultSessionFactory;
import org.lxh.struts.note.vo.Person;

public class PersonDAOImpl implements PersonDAO {
	private Session session = null;

	public PersonDAOImpl() {
		this.session = DefaultSessionFactory.getSession();
	}

	/*
	 * 功能： · 判断是否是正确的用户名或密码 · 从数据库中取出用户的真实姓名
	 */
	public boolean login(Person person) throws Exception {
		boolean flag = false;
		String hql = "FROM Person AS p WHERE p.id=? AND p.password=?";
		Query q = this.session.createQuery(hql);
		q.setString(0, person.getId());
		q.setString(1, person.getPassword());
		List all = q.list();
		if (all.size() > 0) {
			flag = true;
			person.setName(((Person) all.get(0)).getName());
		}
		this.session.close();
		return flag;
	}
};