How to put Java object to ObjectNode in Jackson?-CodePudding

I am composing ObjectNode programmtically and I am filling it's fields with put(String propertyName...) methods. Now I want to add a subobject, which I already have in the form of Java object. How to do this?

I don't have put(String propertyName, Object value) method, so what to do?

I am able to create

JsonNode node = mapper.valueToTree(myObject);

but again I don't have put(String propertyName, JsonNode node) method.

How to accomplish?

CodePudding user response：

Can use set(String propertyName, JsonNode node) method.

CodePudding user response：

Try using set(String, JsonNode) instead of put. Example below:

Car car = new Car();
car.setName("My car");
car.setYear("2022");

ObjectMapper mapper = new ObjectMapper();

ObjectNode baseNode = mapper.createObjectNode();
ObjectNode carNode = mapper.valueToTree(car);

baseNode.put("hello", "world");
baseNode.set("car", carNode);

System.out.println(baseNode.toPrettyString());