yml转换

/**
     * Unmarshal YAML.
     *
     * @param yamlContent YAML content
     * @return map from YAML
     */
public static Map<?, ?> unmarshal(final String yamlContent) {
    return Strings.isNullOrEmpty(yamlContent) ? new LinkedHashMap<>() : (Map) new Yaml().load(yamlContent);
}