Root name of JSON data format

This is Person.java

@JsonRootName("Person")
public class Person {
    private String name;
    private double height;
    private int age;
    @JsonSerialize(using=CustomDateSerializer.class)
    private Date date;
    @JsonProperty("Address")
    private Address address;
        //normal constructor
        //getters/setters
}

This is my main class:

public class AppJson {
    public static void main(String[] arg) throws JsonGenerationException,
            JsonMappingException, IOException {
        Address a = new Address("Jln Koli", "90121", "Vila", "Belgium");
        Person p = new Person("Ali Bin Baba", new Date(), 90.0, 12, a);

        Json json = new Json(p);
        System.out.println(json.toString());
    }
}

Output:

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

But, the output I want is like this:

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

My dependencies:

<dependencies>
    <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.3.3</version>
  </dependency>
</dependencies>

Did you know, which part is wrong??

[cowtowncoder]

Two ways to go; either use something like:

@JsonRootName("Person")
public class PersonList extends ArrayList<Person> { }

to specify root name for your List subtype.

Or use method in ObjectWriter to use whatever name you want for object:

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

[cowtowncoder]

You are not using “withRootName(“Person”)” in there.

And from now on, let’s use mailing lists for questions, discussions. Issue trackers are for bugs.