Hibernate 4中buildSessionFactory()过时

最新推荐文章于 2017-03-23 17:07:00 发布

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本文介绍了如何使用Hibernate框架进行对象关系映射，并通过示例代码展示了配置、获取会话、关闭会话的基本流程。

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

public class MySessionFactory
{
    private static Configuration cfg = new Configuration();
    private static SessionFactory sf = null;
    private static ThreadLocal<Session> threadlocal = new ThreadLocal<Session>();
    
    static{
        cfg.configure("hibernate.cfg.xml");
        ServiceRegistryBuilder srb = new ServiceRegistryBuilder().applySettings(cfg.getProperties());
        sf = cfg.buildSessionFactory(srb.buildServiceRegistry());
    }
    
    public static Session get_current_session()
    {
        Session session = (Session) threadlocal.get();
        if(session==null || !session.isOpen())
        {
            session = sf.getCurrentSession();
            threadlocal.set(session);
        }
        
        return session;
    }
    
    public static void close_session()
    {
        Session session = (Session) threadlocal.get();
        if(session != null)
            threadlocal.set(null);
    }
}