使用新的对象值更新 JsonNode

Question

我正在获取 JsonNode，其中一个键的值为 null。需要用对象更新这个值。

m return 的值将如下所示，其中注释为空，需要更新此注释值。

{
 "a":"aaaaaa",
 "b":"bbbbbb",
 "notes":null,
}

代码尝试了 m 作为 JsonNode 出现的地方：

return seasonsAdapter.callSeasonsJsonAPI(seasonId, hunterId, uuid).map(m -> {
String notes=AppJsonUtil.getJsonAsString(seasonsNotesDto);
ObjectNode objectNode = (ObjectNode) m;
ObjectNode objectNode1=objectNode.put("notes", notes);
objectNode1.put("notesText", seasonsNotesDto.getNotesText());
objectNode1.put("notesTime", seasonsNotesDto.getNotesTime());
objectNode1.put("notesTitle", seasonsNotesDto.getNotesTitle());
return m;
});

结果：

  {
   "a":"aaaaaa",
   "b":"bbbbbb",
  "notes": "{\"notesText\":\"this is my new note 1 \",\"notesTitle\":\"new note 1 Title\",\"notesTime\":1640865242125}",

    "notesText": "this is my new note 1 ",

    "notesTime": 1640865242125,

    "notesTitle": "new note 1 Title"
   }

预期：

  {
   "a":"aaaaaa",
   "b":"bbbbbb",
  "notes": {
           "notesText": "this is my new note 1 ",
            "notesTime": 1640865242125,
            "notesTitle": "new note 1 Title"
           }
   }

Answer 1

我已经弄清楚需要做什么了。检查下面的代码

ObjectMapper mapper = new ObjectMapper();
    ObjectNode obj = (ObjectNode) m;
    if (seasonsNotesDto!=null)
    {
        ObjectNode notes = mapper.createObjectNode();
        notes.put("notesTitle", seasonsNotesDto.getNotesTitle());   
        notes.put("notesText", seasonsNotesDto.getNotesText()); 
        notes.put("notesTime", seasonsNotesDto.getNotesTime()); 
        obj.set("notes", notes);
    }
    return m;

使用新的对象值更新 JsonNode

Update JsonNode with new object values

java

json

jackson

jackson-databind