public SelectorDTO create(final SelectorData selector) {
        selector.setNamespaceId(SYS_DEFAULT_NAMESPACE_NAMESPACE_ID);
        SelectorDTO dto = create("/selector", selector);
        Selectors.INSTANCE.put(selector.getName(), dto.getId());
        return dto;
    }
create selectorDTO.

@param selector selector
@return SelectorDTO
shenyu-e2e/shenyu-e2e-client/src/main/java/org/apache/shenyu/e2e/client/admin/AdminClient.java