HibernateUtils

HibernateUtils.java

package com.yzk.hibernate.util;

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

public class HibernateUtils {
	private static final SessionFactory sessionFactory = buildSessionFactory();

	private static SessionFactory buildSessionFactory() {
		// Configuration configuration = new Configuration().configure();
		// ServiceRegistry serviceRegistry = new
		// StandardServiceRegistryBuilder()
		// .applySettings(configuration.getProperties()).build();
		// return configuration.buildSessionFactory(serviceRegistry);
		Configuration configuration = new Configuration().configure();
		ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
				.applySettings(configuration.getProperties()).build();
		return configuration.buildSessionFactory(serviceRegistry);
	}

	public static SessionFactory getSessionFactory() {
		return sessionFactory;
	}
}

调用方法

	public void saveUser(User user) {
		SessionFactory factory = HibernateUtils.getSessionFactory();
//		Session session = factory.openSession();
		Session session = factory.getCurrentSession();//自动关闭session和factory
		session.beginTransaction();
		session.save(user);
		session.getTransaction().commit();//提交事务
		factory.close();
	}