@Override
public List<StudentNews> getAllNewsByStudent(Student student) {
String hql = "from StudentNews t where t.student=:student order by t.releaseTime desc";
Map<String, Object> params = new HashMap<String, Object>();
params.put("student", student);
return newsdao.find(hql, params);
}
@Override
public void addNews(StudentNews news) {
newsdao.save(news);
}