组合查询（通过Criteria接口实现动态构造查询条件）

public List<Interviewee> queryInterviewee(Interviewee interviewee){
Criteria criteria=session.createCriteria(Interviewee.class);

if(interviewee.getName()!=null&&!interviewee.getName().trim().equals("")){
criteria.add(Restrictions.eq("name", interviewee.getName()));
}
if(interviewee.getSex()!=null){
criteria.add(Restrictions.eq("sex", interviewee.getSex()));
}
if(interviewee.getAge()>0){
criteria.add(Restrictions.eq("age", interviewee.getAge()));
}
if(interviewee.getContact()!=null&&!interviewee.getContact().trim().equals("")){
criteria.add(Restrictions.eq("contact", interviewee.getContact()));
}
if(interviewee.getActualDate()!=null){
criteria.add(Restrictions.eq("actualDate", interviewee.getActualDate()));
}
List<Interviewee> list=criteria.list();
return list;
}