你导入的hibernate框架的jar和老师的jar包不一样

导入的jar包和程序不匹配，你把本节课的老师上传的资料下载下来，里面有hibernate3的jar包，导入到自己的项目就可以了！希望采纳！！

太老了，可以自己写工具类代码：

package com.imooc.util;

import org.hibernate.Transaction;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {

private static SessionFactory sessionFactory;

private static Session session;

private static Transaction transaction;

static{

Configuration config = new Configuration().configure();// 鍒涘缓閰嶇疆瀵硅薄

sessionFactory = config.buildSessionFactory();// 鍒涘缓浼氳瘽宸ュ巶瀵硅薄

// session = sessionFactory.openSession();// 鎵撳紑浼氳瘽

// transaction = session.beginTransaction();// 寮�惎浜嬪姟

}

//鑾峰彇session

public static Session getSession(){

session=sessionFactory.openSession();

return session;

}

public static void closeSession(Session session){

if(session!=null){

session.close();

}

}

}

方法已经过时了，你试试session.isConnected()