Spring Boot Application Jackson MixIn Example

SpringBootApplicationJacksonMixInExample.java

import com.fasterxml.jackson.annotation.JsonProperty;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class SpringBootApplicationJacksonMixInExample {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootApplicationJacksonMixInExample.class, args);
    }

    /*
     * TEST:     http://localhost:8080 
     * RESPONSE: { title: "Mr", fullName: "Joe Bloggs" }
     */
    @RequestMapping(value = "/")
    @ResponseBody
    public ResponseEntity<Person> get(){
        Person person = new Person("Mr", "Joe Bloggs");
        return new ResponseEntity<>(person, HttpStatus.OK);
    }

    @Bean
    public Jackson2ObjectMapperBuilder jacksonBuilder() {
        Jackson2ObjectMapperBuilder b = new Jackson2ObjectMapperBuilder();
        b.indentOutput(true).mixIn(Person.class, PersonMixin.class);
        return b;
    }

    public interface PersonMixin {
        // Overwrite 'name' with 'fullName' in Json response
        @JsonProperty("fullName")
        abstract String getName();
    }
}

class Person {
    private String title;
    private String name;

    public Person(String title, String name) {
        this.title = title;
        this.name = name;
    }

    public String getTitle() {
        return title;
    }

    public String getName() {
        return name;
    }
}