private void recover(final String key) {
        FallbackHolder fallbackHolder = fallsRegisters.get(key);
        if (Objects.nonNull(fallbackHolder)) {
            List<URIRegisterDTO> uriList = fallbackHolder.getUriList();
            String selectorName = fallbackHolder.getSelectorName();
            this.doRegisterURI(selectorName, uriList, fallbackHolder.getNamespaceId());
            LOG.info("Register success: {},{}", selectorName, uriList);
        }
    }
Register uri string.

@param selectorName the selector name
@param uriList      the uri list
@return the string
shenyu-admin/src/main/java/org/apache/shenyu/admin/service/register/FallbackShenyuClientRegisterService.java