hibernateutil.java

java c/s结构开发中使用Hibernate的一些实例

package com.hibernate;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
	private static SessionFactory factory; 
	static{
		//读取配置文件hibernate.cfg.xml
		Configuration cfg = new Configuration().configure();
		//创建SessionFactory
		factory = cfg.buildSessionFactory();
	}
	//获得SessionFactory实例
	public static SessionFactory getSessionFactory(){
		return factory;
	}
	//获得Session实例
	public static Session getSession() {
		return factory.openSession();
	}
	//关闭指定Session
	public static void closeSession(Session session) {
		if(session != null) {
			if(session.isOpen()) {
			session.close();
			}
		}
	}
}