@Override
 public void updateAllLectures(LectureVO lecture) {
   lecturedao.updateAllLectures(lecture);
 }
 @Override
 public LectureVO selectBySequence(int sequence) {
   return lecturedao.searchBySequence(sequence);
 }
 @Override
 public List<LectureVO> getMyLectureList(String member_id) {
   return lecturedao.getMyLectureList(member_id);
 }
 @Override
 public List<LectureVO> searchLecture(HashMap<String, String> lecture) {
   return lecturedao.search(lecture);
 }