String hql = "select p from Picgroup p join p.images t where p.id=" + groupid;

Query query = session.createQuery(hql);

List list = query.list();

Picgroup group = (Picgroup) list.get(0);

view.setName(group.getName());

view.setId(groupid);

Collection image=session.filter(group.getImages(),"select this where this.state=´C´");
//这里只取出state等于C的数据
Iterator ite = image.iterator();