hibernatesessionfactory.java

这是一个购物车的源码

package com.tarena.util;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {
	private static SessionFactory sf=null;
	public static ThreadLocal local=new ThreadLocal();
	//		<property name="current_session_context_class">thread</property><!-- 要使用getCurrentSession()必须就得加这句话 -->
	static{
		try {
			Configuration cfg=new Configuration();
			sf=cfg.configure().buildSessionFactory();
		} catch (HibernateException e) {
			e.printStackTrace();
		}
	}
	
	public static Session getSession(){
		if(sf==null) return null;
		return sf.getCurrentSession();
	}
}