多层嵌套的json的值如何解析/替换

<dependency>
            <groupId>ognl</groupId>
            <artifactId>ognl</artifactId>
            <version>${ognl.version}</version>
        </dependency>

public final class OgnlCache {

  private static final OgnlMemberAccess MEMBER_ACCESS = new OgnlMemberAccess();
  private static final OgnlClassResolver CLASS_RESOLVER = new OgnlClassResolver();
  private static final Map<String, Object> expressionCache = new ConcurrentHashMap<>();

  private OgnlCache() {
    // Prevent Instantiation of Static Class
  }

  public static Object getValue(String expression, Object root) {
    try {
      Map context = Ognl.createDefaultContext(root, MEMBER_ACCESS, CLASS_RESOLVER, null);
      return Ognl.getValue(parseExpression(expression), context, root);
    } catch (OgnlException e) {
      throw new RuntimeException("Error evaluating expression '" + expression + "'. Cause: " + e, e);
    }
  }

  private static Object parseExpression(String expression) throws OgnlException {
    Object node = expressionCache.get(expression);
    if (node == null) {
      node = Ognl.parseExpression(expression);
      expressionCache.put(expression, node);
    }
    return node;
  }

}

public final class JsonUtil {

    private JsonUtil(){}

    public static <T> T parse(String jsonStr, Class<T> clazz) throws Exception {
        return JSON.parseObject(jsonStr, clazz);
    }

    public static Object getValue(Map map, String path) throws Exception {
         return OgnlCache.getValue(path,map);
    }
}

private void printMenuI18nCodeByOgnl() throws Exception {
        String menuJson = mockMenuService.getMenuJson();
        Map<String, Object> map = JsonUtil.parse(menuJson, Map.class);
        Object topMenu = JsonUtil.getValue( map,"i18NCode");
        Object userMenu = JsonUtil.getValue( map,"children[0].i18NCode");
        Object userMenuAdd = JsonUtil.getValue( map,"children[0].children[0].i18NCode");
        Object userMenuUpdate = JsonUtil.getValue( map,"children[0].children[1].i18NCode");
        Object deptMenu = JsonUtil.getValue( map,"children[1].i18NCode");
        Object deptMenuList = JsonUtil.getValue( map,"children[1].children[0].i18NCode");
        Object deptMenuDelete = JsonUtil.getValue( map,"children[1].children[1].i18NCode");
        System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Print MenuI18nCode By Ognl Start <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<,");
        System.out.println(topMenu);
        System.out.println(userMenu);
        System.out.println(userMenuAdd);
        System.out.println(userMenuUpdate);
        System.out.println(deptMenu);
        System.out.println(deptMenuList);
        System.out.println(deptMenuDelete);
        System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Print MenuI18nCode By Ognl End <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<,");
    }

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>${fastjson.version}</version>
        </dependency>

public String reBuildMenuJson(){
        String orginalMenuJson = getMenuJson();
        JSONObject jsonObject = JSON.parseObject(orginalMenuJson);
        jsonObject.put(I18N_CODE_COLUMN,mockI18nCache.get(jsonObject.get(I18N_CODE_COLUMN)));
        reBuildChildJson(jsonObject);
        return JSON.toJSONString(jsonObject);

    }

    private void reBuildChildJson(JSONObject curentObject){
        JSONArray children = curentObject.getJSONArray(CHILDREN_COLUMN);
        for (int i = 0; i < children.size(); i++) {
            JSONObject child = children.getJSONObject(i);
            child.put(I18N_CODE_COLUMN,mockI18nCache.get(child.get(I18N_CODE_COLUMN)));
            reBuildChildJson(child);
        }

    }

@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotationsInside
@JsonSerialize(using = I18nJsonSerializer.class)
public @interface I18nField {
}

public interface I18nService {

    String getTargetContent(String i18nCode);
}

String getMessage(String code, @Nullable Object[] args, @Nullable String defaultMessage, Locale locale);

public class I18nJsonSerializer extends JsonSerializer<String> implements ContextualSerializer {
    @Autowired
    private I18nService i18nService;
    @Override
    public void serialize(String s, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
        jsonGenerator.writeString(i18nService.getTargetContent(s));
    }
    @Override
    public JsonSerializer<?> createContextual(SerializerProvider serializerProvider, BeanProperty beanProperty) throws JsonMappingException {
        I18nField i18nField = beanProperty.getAnnotation(I18nField.class);
        if(!ObjectUtils.isEmpty(i18nField) && String.class.isAssignableFrom(beanProperty.getType().getRawClass())){
            return this;
        }
        return serializerProvider.findValueSerializer(beanProperty.getType(),beanProperty);
    }
}

@Data
@EqualsAndHashCode(callSuper = true, of = {"id"})
public class MenuResourceDTO extends TreeDTO<MenuResourceDTO> implements Serializable {
    private static final long serialVersionUID = 1L;
 。。。。。省略其他属性
    /**
     * 单菜名称
     */
    private String menuName;
    private String permission;
    /**
     * 是否缓存
     */
    private Integer keepAlive;
    @I18nField
    private String i18NCode;
    public static String I18N_CODE_COLUMN = "i18NCode";
    public static String CHILDREN_COLUMN = "children";

@I18nField
    private String i18NCode;

@RestController
@RequestMapping("menu")
@RequiredArgsConstructor
public class MockMenuController {
    private final MockMenuService mockMenuService;
    @GetMapping
    public MenuResourceDTO getMenu(){
        return mockMenuService.getMenuResourceDTO();
    }
}

{
    "id": 1,
    "parentId": 0,
    "sort": 9999,
    "children": [
        {
            "id": 9,
            "parentId": 1,
            "sort": 9999,
            "children": [
                {
                    。。。省略其他信息
                    "menuName": "用户新增",
                    "i18NCode": "userMenuAdd"
                },
                {
                    。。。省略其他信息
                    "menuName": "用户编辑",
                    "i18NCode": "userUpdateAdd"
                }
            ],
            。。。省略其他信息
            "menuName": "用户菜单",
            "i18NCode": "userMenu"
        },
    "menuName": "顶级菜单",
    "i18NCode": "topMenu"
}