如何在Jackson中将对象序列化为ObjectNode的值？

Question

I'm using jackson to serialize my object as json. I'm using following code:

ObjectMapper mapper = new ObjectMapper();
JsonNodeFactory nodeFactory = new JsonNodeFactory(false);
ObjectNode resNode = new ObjectNode(nodeFactory);

SimpleModule simpleModule = new SimpleModule();
simpleModule.addSerializer(ApplicationVersion.class, new SingleApplicationSerializer());
mapper.registerModule(simpleModule);
JsonNode appObject = mapper.valueToTree(appVersion);

resNode.put("status", true);
resNode.put("appObject", appObject);     //This put method is deprecated.

But I saw the put method with JsonNode overload is deprecated.Why following overload of put method is deprecated:

public JsonNode put(String fieldName, JsonNode value);

What is the alternative for that?

---

Also I tried this:

String jsonStr = mapper.writeValueAsString(appVersion);
resNode.put("status", true);
resNode.put("appObject", jsonStr);

But this method puts double quote ( " ) around appObject value as a string value.

Answer 1

They added a new method for these actions. ObjectNode.put(String, JsonNode)

Try instead resNode.set("appObject", appObject); .

Answer 2

不推荐使用ObjectNode.put（）