Json Mixin

JsonTest.java

package xyz.faber;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Test;

import java.io.IOException;
import java.io.StringWriter;

public class JsonTest {
    @Test
    public void testCustom() throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        mapper.addMixIn(CustomClass.class, CustomClassMixin.class);
        CustomClass cc = new CustomClass("id", 7);
        StringWriter sw = new StringWriter();
        mapper.writeValue(sw, cc);
        System.out.println(sw.toString());
    }

    private static class CustomClassMixin {
        @JsonProperty("s_id")
        private String id;
    }

    private static class CustomClass{
        private String id;
        private int foo;

        public CustomClass() {
        }

        public CustomClass(String id, int foo) {
            this.id = id;
            this.foo = foo;
        }

        public String getId() {
            return id;
        }

        public void setId(String id) {
            this.id = id;
        }

        public int getFoo() {
            return foo;
        }

        public void setFoo(int foo) {
            this.foo = foo;
        }
    }
}