Most Common 6 JSON Deserialization Needs And Solutions With Jackson

As a developer, daily bases, we struggle typical use cases when working with JSON, no matter what programming language or technologies we use. Transform a json to a mutable or an immutable object, mapping a field with a specific naming strategy to another, … etc.

Today, we are going to touch most common 6 use cases of JSON deserialization with Jackson library.

Deserialization Of JSON To A Mutable Object

First, let’s take a JSON like the following one as an example:

{
  "id": "ee53eb56-3ee5-4bf6-95b4-c9ce90741417",
  "name": "Green Shirt",
  "description": "A beautiful green shirt",
  "price": 102.8543529
}

By default, Jackson is able to deserialize a JSON as a mutable object without any extra configuration. So we can deserialize our json string to an object with setters like the following one easily.

public class Product {
    private String id;
    private String name;
    private String description;
    private Double price;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }…