Root name of JSON data format about jackson-annotations HOT 6 CLOSED

ObjectWriter w = ...;
w.withRootName("Person").writeValueAsString(list);

mapper.enable(SerializationFeature.WRAP_ROOT_VALUE);

mapper.writer().with(SerializationFeature.WRAP_ROOT_VALUE).writeValue(...);

{
  "Person" : {
    "name" : "Ali Bin Baba",
    "age" : 12,
    "date" : "06-13-2014",
    "Address" : {
      "postcode" : "90121",
      "city" : "Vila",
      "state" : "Belgium",
      "street" : "Jln Koli"
    }
  }
}

public class Json {
    private ByteArrayOutputStream baos = new ByteArrayOutputStream();

    private ObjectMapper mapper = new ObjectMapper();

    public Json(Object obj) throws JsonGenerationException,
            JsonMappingException, IOException {
        mapper.writerWithDefaultPrettyPrinter().with(SerializationFeature.WRAP_ROOT_VALUE).writeValue(baos, obj);
    }

    public int size() {
        return baos.size();
    }

    public String toString() {
        byte[] bytes = baos.toByteArray();
        return new String(bytes);
    }

}

Address a = new Address("Jln Koli", "90121", "Vila", "Belgium");
Person p = new Person("Ali Bin Baba", new Date(), 90.0, 12, a);
List<Person> persons = new LinkedList<>();
persons.add(p);
persons.add(p);
Json json = new Json(persons);
System.out.println(json.toString());

{
  "LinkedList" : [ {
    "name" : "Ali Bin Baba",
    "age" : 12,
    "date" : "06-13-2014",
    "Address" : {
      "postcode" : "90121",
      "city" : "Vila",
      "state" : "Belgium",
      "street" : "Jln Koli"
    }
  }, {
    "name" : "Ali Bin Baba",
    "age" : 12,
    "date" : "06-13-2014",
    "Address" : {
      "postcode" : "90121",
      "city" : "Vila",
      "state" : "Belgium",
      "street" : "Jln Koli"
    }
  } ]
}

public class Json {
    private ByteArrayOutputStream baos = new ByteArrayOutputStream();

    private ObjectMapper mapper = new ObjectMapper();

    public Json(Object obj) throws JsonGenerationException,
            JsonMappingException, IOException {
        mapper.writerWithDefaultPrettyPrinter()
                .with(SerializationFeature.WRAP_ROOT_VALUE)
                .writeValue(baos, obj);
    }

    public int size() {
        return baos.size();
    }

    public String toString() {
        byte[] bytes = baos.toByteArray();
        return new String(bytes);
    }

}