How to map given JSON to DTO

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I've the following JSON

   "status": "OK",
   "years": [
       ["current_products", "actual_tariff"],
       [ 2012, 2013]

I'd like to have a class describing given JSON, so that I'll be able to serialize/deserialize it to/from java object using fasterxml's ObjectMapper. I've tried to use @JsonUnrwapped but the serialized result is completely different

public class ExampleDto {

    public String     status;
    public List<Year> years;

    public static class Year {

        public List<String> info;
        public List<String> years;

// writing object to JSON value results to
// {"status":"OK","years":[{"info":["current","aktuelle"],"years":["2012","2013"]}]}

I know that JSON structure is broken, but how can I have a proper mapping for it?

how about:

public class Dto {
  String status;

  List<List<Object>> years;

Then you can explore if they are int or strings.

Mapping a Dynamic JSON Object with Jackson, In this short tutorial, we'll see multiple ways of mapping dynamic JSON objects into Java classes. Note that in all of the tests, we assume we have  In this short article, you'll learn how to convert a JSON string to a Map in Java and vice versa by using the Jackson library.. Dependencies. To add Jackson to your Gradle project, add the following dependency to build.gradle file:

In your json, "years" is an array which again contains arrays of object, so your DTO will be-

public class ExampleDTO {

private String status;
private List<List<Object>> years;


NOTE: If you have json data, you can easily create correct pojo out of it here -

How to convert Java object to / from JSON (Jackson), POJO (Plain Old Java Object). An User object for JsonGenerationException; import  In Jackson json map example example, we will learn to convert json to map object and then we will learn to convert java map to json.. 1. Jackson maven dependency. Include Jackson 2 dependency in your application project.

use some tool like which generate the POJO class based on the json

Use Java EE JSON to Avoid Mapping Complex DTOs, by mapping complex DTOs, but there's a much easier method available. The traditional method for integrating third-party APIs with any given  In summary, what it does is to populate an instance of a DTO, defined in the @DTO annotation, and then maps the properties of this DTO into an entity. What makes it a little bit more magic is that instead of always populating a new instance of an entity, it first checks if there is an @Id property in the DTO to see if it needs to fetch a pre

Kotlin for Android App Development, The NDBNO will be used later to retrieve details about a specific food. Now that you have mapped the JSON data to DTOs, you can tell Retrofit to return a Mapping the DTOs to your domain classes is straightforward and can be done by a  Please, never do this. You do not want your DTO layer to be aware of or dependant on your domain layer. The advantage of mapping is that lower layers can easily be switched out by changing the mapping, or that modifications in the lower layer can be controler by changing the mapping.

Jackson convert object to json and json to object, Learn to use jackson objectmapper to read object and write json to java object. In this quick jackson tutorial, I am giving examples of converting java objects to/​from json programmatically. Before jumping into code examples, lets define a simple pojo class which we will use in this import Easiest way I know is to use JSON.Net by newtonsoft. To make it easier to understand, I always make matching classes in C# with the same name. Then its easier to deserialize it. As an example, if it is an array of objects in js, it will map to a list of object with the same names in C#. As for the date time, its a bit tricky.

Mapping a Dynamic JSON Object with Jackson (Example), The simplest and straightforward way of mapping dynamic JSON properties is to use the JsonNode class provided by Jackson. This class is  Working with predefined JSON data structures with Jackson is straightforward. However, sometimes we need to handle dynamic JSON objects, which have unknown properties. In this short tutorial, we'll see multiple ways of mapping dynamic JSON objects into Java classes.