hibernateutils.java

hibernate 关联实例包括（一对一关联）一对多关联(单向

package com.bjsxt.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtils {
	
	private static SessionFactory factory;
	
	private HibernateUtils() {}
	
	static {
		Configuration cfg = new Configuration().configure();
		factory = cfg.buildSessionFactory();
	}
	
	public static SessionFactory getSessionFactory() {
		return factory;
	}
	
	public static Session getSession() {
		return factory.openSession();
	}
	
	public static void closeSession(Session session) {
		if (session != null) {
			if (session.isOpen()) {
				session.close();
			}
		}
	}
	
}