struts+hibernate为什么怎么取数据都为空呢
protected HibernateSessionFactory sessionFactory;
public List<Siteuser> getsiteuser(int bh ,int schoolbh) throws Exception {
Configuration cfg=new Configuration().configure();
SessionFactory sf= cfg.buildSessionFactory();
Session session=sf.openSession();
List l=null;
String sql=" from Siteuser where bh=? and schoolbh=?";
Query q = session.createQuery(sql);
q.setInteger(0, bh);
q.setInteger(1, schoolbh);
l=q.list();
return l;
}
调用这个方法,为什么取的数据都为空