HibernateUtil工具类

工具类：

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import java.util.Properties;

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​

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import org.hibernate.Session;

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import org.hibernate.SessionFactory;

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import org.hibernate.cfg.Configuration;

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import org.hibernate.service.ServiceRegistry;

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import org.hibernate.service.ServiceRegistryBuilder;

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​

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public class HibernateUtil {

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    public static SessionFactory sessionFactory=null;

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    static{

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        Configuration cfg=new Configuration().configure();

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        ServiceRegistryBuilder serviceRegistryBuilder=new ServiceRegistryBuilder();

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        Properties properties=cfg.getProperties();

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        serviceRegistryBuilder.applySettings(properties);

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        ServiceRegistry serviceRegistry=serviceRegistryBuilder.buildServiceRegistry();

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        sessionFactory=cfg.buildSessionFactory(serviceRegistry);

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    }

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    public static Session getSession(){

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        Session session=sessionFactory.openSession();

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        return session;

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    }

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}