Gson: How to exclude specific fields from Serialization without annotations

Question

I\'m trying to learn Gson and I\'m struggling with field exclusion. Here are my classes

public class Student {    
  private Long                id;
  privat         


        

Answer 1

You can explore the json tree with gson.

Try something like this :

gson.toJsonTree(student).getAsJsonObject()
.get("country").getAsJsonObject().remove("name");

You can add some properties also :

gson.toJsonTree(student).getAsJsonObject().addProperty("isGoodStudent", false);

Tested with gson 2.2.4.