Hibernate工具类

package com.org.util;

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

public class HibernateUtil {

	private static SessionFactory sf;

	static {
		try {
			// 读取hibernate.cfg.xml文件
			Configuration cfg = new Configuration().configure();

			// 建立SessionFactory
			sf = cfg.buildSessionFactory();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static Session getSession() {
		return sf.openSession();
	}

	public static void closeSession(Session session) {
		if (session != null) {
			if (session.isOpen()) {
				session.close();
			}
		}
	}

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