@Override
    @Transactional(rollbackFor = Exception.class)
    public int createOrUpdate(final SelectorDTO selectorDTO) {
        return SelectorService.super.createOrUpdate(selectorDTO);
    }
create or update selector.

@param selectorDTO {@linkplain SelectorDTO}
@return rows
shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/SelectorServiceImpl.java