public static String buildRealNode(final String nodePath, final String nodeName) {
        return String.join(SEPARATOR, nodePath, nodeName);
    }
Build real node string.

@param nodePath the node path
@param nodeName the node name
@return the string
shenyu-registry/shenyu-registry-api/src/main/java/org/apache/shenyu/registry/api/path/InstancePathConstants.java