@Override
 public Page<EnterpriseIntro> findAllIntroByEnterprise(
     int pageNum, int pageSize, Enterprise enterprise) {
   Pageable dateDesc = new PageRequest(pageNum, pageSize, Direction.DESC, "id");
   Page<EnterpriseIntro> onePage = introRepository.findIntroByEnterprise(enterprise, dateDesc);
   return onePage;
 }
 @Override
 public List<EnterpriseIntro> getAllIntroById(Long id) {
   // TODO Auto-generated method stub
   return introRepository.getAllIntroById(id);
 }
 @Override
 public EnterpriseIntro update(EnterpriseIntro enterpriseIntro) {
   // TODO Auto-generated method stub
   return introRepository.save(enterpriseIntro);
 }
 @Override
 public EnterpriseIntro findOneById(Long id) {
   // TODO Auto-generated method stub
   return introRepository.findOne(id);
 }
 @Override
 public EnterpriseIntro save(EnterpriseIntro enterpriseIntro, Enterprise enterprise) {
   enterpriseIntro.setEnterprise(enterprise);
   return introRepository.save(enterpriseIntro);
 }