public static String buildNodeName(final String serviceName, final String methodName) {
        return String.join(DOT_SEPARATOR, serviceName, methodName);
    }
Build node name by DOT_SEPARATOR.

@param serviceName the service name
@param methodName the method name
@return the string
shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/path/RegisterPathConstants.java