Inheritance in Json Response Spring boot - json

Question

I have two classes, A and B:
class A{
private int numberOne;
private int numberTwo;
public int getNumberOne() {
return numberOne;
}
public void setNumberOne(int numberOne) {
this.numberOne = numberOne;
}
public int getNumberTwo() {
return numberTwo;
}
public void setNumberTwo(int numberTwo) {
this.numberTwo = numberTwo;
}
}
class B extends A {
private int numberThree;
public int getNumberThree() {
return numberThree;
}
public void setNumberThree(int numberThree) {
this.numberThree = numberThree;
}
}
How do I can like this:
ResponseEntity<A> someMethod(){
return new B(1,2,3);
}
json
{
"numberOne":"1",
"numberTwo":"2"
}
ResponseEntity<B> someMethod(){
return new B(1,2,3);
}
json
{
"numberOne":"1",
"numberTwo":"2",
"numberThree":"3"
}
How can I use JSON ignoring in Spring Boot which I want?

Answer 1

You create new class
public class Views {
public static class Public {
}
public static class Internal extends Public {
}
}
A.class
public class A {
public A(int numberOne, int numberTwo) {
this.numberOne = numberOne;
this.numberTwo = numberTwo;
}
#JsonView(Views.Public.class)
private int numberOne;
#JsonView(Views.Public.class)
private int numberTwo;
public int getNumberOne() {
return numberOne;
}
public void setNumberOne(int numberOne) {
this.numberOne = numberOne;
}
public int getNumberTwo() {
return numberTwo;
}
public void setNumberTwo(int numberTwo) {
this.numberTwo = numberTwo;
}
}
B.class
public class B extends A{
#JsonView(Views.Internal.class)
private int numberThree;
public B(int numberOne, int numberTwo) {
super(numberOne, numberTwo);
}
public B(int numberOne, int numberTwo, int numberThree) {
super(numberOne, numberTwo);
this.numberThree = numberThree;
}
public int getNumberThree() {
return numberThree;
}
public void setNumberThree(int numberThree) {
this.numberThree = numberThree;
}
}
Controller
#GetMapping("/a-method")
#JsonView(Views.Public.class)
public ResponseEntity<A> getA(){
return ResponseEntity.ok(new B(1,2,3));
}
#GetMapping("/b-method")
#JsonView(Views.Internal.class)
public ResponseEntity<B> getB(){
return ResponseEntity.ok(new B(1,2,3));
}