两个字段，一个名称为jsonproperty

Question

I have an interface A which has two methods with different jsonproperty (ref: com.fasterxml.jackson.annotation.JsonProperty) names

public interface  A {
  @JsonProperty("field_1")
    String getField1();

    @JsonProperty("field_2")
    String getField2();
}

I need to create two more interfaces class B and C which will inherit from A.

While B wants to include field_1 and discard field_2, C wants field_2 and discard field_1. Also, both want to give the same name to their preferred fields, lets say, "field_3".

Answer 1

You can use @JsonIgnore to discard fields and B and C can override @JsonProperty of A as shown below.

    public interface A {

    @JsonProperty("field_1")
    String getField1();

    @JsonProperty("field_2")
    String getField2();
}

public class B implements A {

    @Override
    @JsonProperty("field_B")
    public String getField1() {
        return "field1";
    }

    @Override
    @JsonIgnore
    public String getField2() {
        return "field2";
    }

}

public class C implements A {

    @Override
    @JsonIgnore
    public String getField1() {
        return "field1";
    }

    @Override
    @JsonProperty("field_C")
    public String getField2() {
        return "field2";
    }

}