一个容易的Hibernate例子

package persistence;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil
...{
private static final SessionFactory sessionFactory;

static
...{
try
...{
sessionFactory = new Configuration().configure().buildSessionFactory();
}
catch(HibernateException ex)
...{
throw new RuntimeException("Exception building SessionFactory;"
+ ex.getMessage(), ex);
}
}

public static Session currentSession() throws HibernateException
...{
Session s = sessionFactory.openSession();
return s;
}

public static void closeSession(Session s)
...{
if (s != null)
s.close();
}

}