private static boolean isIp(String host) {
        return InetAddresses.isInetAddress(host);
    }
bolt://taobao.com:80?a=b   true
taobao.com:80?a=b          true

@param url
@return
registry/registry-local/src/main/java/com/alipay/sofa/rpc/registry/local/DomainRegistryHelper.java