请教hibernate问题

public int getCount1(Company company,Object param)
{
int count = 0;
if (company != null) {
Session session = (Session) em.getDelegate();
Criteria criteria = session.createCriteria(Company.class);
if (company.getCompanyname() != null && company.getCompanyname().trim().length() > 0)
criteria.add(Restrictions.like("companyname", company.getCompanyname(),
MatchMode.ANYWHERE));

count = ((Number) criteria.setProjection(Projections.rowCount())
.uniqueResult()).intValue();
}
return count;
}
割---------
Session session = (Session) em.getDelegate();
这里用EntityManager.getDelegate得到session.
当得到结果count后，要不要手动将session关闭？
service层中，用了spring的@Transactional注解

这个要！你要调用spring框架下的hibernateTemple，spring才能管理session

我也不清楚！路过