hibernate官网下的管理session的例子
package sict.wenlong.operation;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUitl {
private static SessionFactory sessionFactory;
static{
try{
sessionFactory = new Configuration().configure().buildSessionFactory();
}catch(HibernateException ex){
throw new RuntimeException("Configuration problem:"+ex.getMessage(),ex);
}
}
public static final ThreadLocal session =new ThreadLocal();
public static Session currentSession() throws HibernateException{
Session s=(Session)session.get();
//Open a new Session,if this Thread has none yet
if(s==null){
s=sessionFactory.openSession();
session.set(s);
}
return s;
}
public static void closeSession() throws HibernateException{
Session s=(Session)session.get();
session.set(null);
if(s!=null){
s.close();
}
}
}