Want to hide some fields of an object that are being mapped to JSON by Jackson

Question

I have a User class that I want to map to JSON using Jackson.

public class User {
    private String name;
    private int age;
    prviate int securityCode;         


        

Answer 1

If you don't want to put annotations on your Pojos you can also use Genson.

Here is how you can exclude a field with it without any annotations (you can also use annotations if you want, but you have the choice).

Genson genson = new Genson.Builder().exclude("securityCode", User.class).create();
// and then
String json = genson.serialize(user);