hibernatedao.java

struts2实例介绍

package com.test.hibernate.dao;

import java.util.List;

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

import com.test.hibernate.Person;
import com.test.hibernate.User;
import com.test.hibernate.dao.inter.IHibernateDao;

public class HibernateDao implements IHibernateDao{
	private SessionFactory sessionFactory;
	
	public SessionFactory getSessionFactory() {
		return sessionFactory;
	}
	
	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	public boolean isEqualsUser(User user) {
		return isHasUser(user);
	}
	
	@SuppressWarnings("unchecked")
	private boolean isHasUser(User user) {
		Session sn = sessionFactory.openSession();
		Transaction tn = sn.beginTransaction();
		Query q = sn.createQuery("from User user where user.username = ? and user.password = ?");
		q.setString(0, user.getUsername());
		q.setString(1, user.getPassword());
		List list = q.list();
		tn.commit();
		sn.close();
		return list.isEmpty() ? false : true;
	}

	@SuppressWarnings("unchecked")
	public List<Person> getPersons() {
		Session sn = sessionFactory.openSession();
		Transaction tn = sn.beginTransaction();
		Query q = sn.createQuery("from Person");
		List<Person> list = q.list();
		tn.commit();
		sn.close();
		return list;
	}

	
	@SuppressWarnings("unchecked")
	public Person getPersonInform(String name) {
		Session sn = sessionFactory.openSession();
		Transaction tn = sn.beginTransaction();
		Query q = sn.createQuery("from Person p where p.name = ?");
		q.setString(0, name);
		List<Person> list = q.list();
		tn.commit();
		sn.close();
		return list.get(0);
	}
	
}