Usage of @responsebody

gistfile1.java

@Controller
@RequestMapping("/persons")
class PersonController {

  private final PersonRepository repository;

  @Autowired
  public PersonController(PersonRepository repository) {
    Assert.notNull(repository);
    this.repository = repository;
  }

  @RequestMapping(method = RequestMethod.GET)
  @ResponseBody
  public HttpEntity<List<PersonDto>> showPersons() {

    List<PersonDto> persons = new ArrayList<PersonDto>();

    for (Person person : repository.findAll()) {
      persons.add(convertToDto(person));
    }
    
    return new ResponseEntity<List<PersonDto>>(persons, HttpStatus.OK);
  }

  @RequestMapping(value = "/{id}", method = RequestMethod.GET)
  @RepsonseBody
  public HttpEntity<Person> showPerson(@PathVariable Long id) {

    Person person = repository.findOne(id);
    return new ResponseEntity<PersonDto>(convertToDto(person), HttpStatus.OK);
  }

  @RequestMapping(value = "/{id}", method = RequestMethod.PUT)
  @ResponseCode(HttpStatus.OK)
  public HttpEntity<Void> updatePerson(@PathVariable Long id, @RequestBody PersonDto personDto) {

    if (!repository.exists(id)) {
      return new ReponseEntity(HttpStatus.NOT_FOUND);
    }

    repository.save(fromDto(personDto);
  }

  @RequestMapping(method = RequestMethod.POST)
  @ResponseBody
  public HttpEntity<Void> createPerson(@RequestBody PersonDto personDto) {

    Person person = repository.save(fromDto(personDto));
  
    HttpHeaders headers = new HttpHeaders();
    headers.setLocation(createLocationFor(person));

    return new ResponseEntity<Void>(headers);
  }

  private PersonDto convertToDto(Person person) {
    // convert to JAXB mapped object
  }

  private Person fromDto(PersonDto personDto) {
    // transform DTO into domain object
  }
}