Jackson: remove some values from json and keep some null values

Question

I have a model like this:

public class Employee {
    @JsonProperty(\"emplyee_id\")
    private Integer id;
    @JsonProperty(\"emplyee_first_name\")
    pr         


        

Answer 1

it could be useful for you using @JsonView annotation

public class Views {
    public static class Public {
    }
    public static class Base {
    }
 }



public class Employee {
   @JsonProperty("emplyee_id")
   @JsonView({View.Public.class,View.Base.class})
   private Integer id;

   @JsonProperty("emplyee_first_name")
   @JsonView(View.Public.class)
   private String firstName;

   @JsonProperty("emplyee_last_name")
   @JsonView(View.Public.class)
   private String lastName;

   @JsonProperty("emplyee_address")
   private String address;

   @JsonProperty("emplyee_age")
   private Byte age;

   @JsonProperty("emplyee_level")
   @JsonView(View.Base.class)
   private Byte level;

   //getters and setters
 }

in your json response add @JsonView(Public/Base.class) it will return based on jsonview annotations

//requestmapping
@JsonView(View.Public.class)  
public ResponseEntity getEmployeeWithPublicView(){
    //do something
}

response:

{ 
  "employee_id":101,
  "employee_first_name":"Alex",
  "employee_last_name":"Light",
  "employee_age":null,
  "employee_address":null
}

for the second one

//requestmapping
@JsonView(View.Base.class)  
public ResponseEntity getEmployeeWithBaseView(){
    //do something
}

response

{
   "employee_id":101,
   "employee_level":5
}