小编典典

当对Spring RESTful应用程序使用ResponseEntity <T>和@RestController时

spring

我正在使用Spring Framework 4.0.7,MVC和Rest

我可以和以下人一起安心工作:

  • @Controller
  • ResponseEntity<T>

例如:

@Controller
@RequestMapping("/person")
@Profile("responseentity")
public class PersonRestResponseEntityController {

With the method (just to create)

@RequestMapping(value="/", method=RequestMethod.POST)
public ResponseEntity<Void> createPerson(@RequestBody Person person, UriComponentsBuilder ucb){
    logger.info("PersonRestResponseEntityController  - createPerson");
    if(person==null)
        logger.error("person is null!!!");
    else
        logger.info("{}", person.toString());

    personMapRepository.savePerson(person);
    HttpHeaders headers = new HttpHeaders();
    headers.add("1", "uno");
    //http://localhost:8080/spring-utility/person/1
    headers.setLocation(ucb.path("/person/{id}").buildAndExpand(person.getId()).toUri());

    return new ResponseEntity<>(headers, HttpStatus.CREATED);
}

to return something

@RequestMapping(value="/{id}", method=RequestMethod.GET)
public ResponseEntity<Person> getPerson(@PathVariable Integer id){
    logger.info("PersonRestResponseEntityController  - getPerson - id: {}", id);
    Person person = personMapRepository.findPerson(id);
    return new ResponseEntity<>(person, HttpStatus.FOUND);
}

工作正常

我可以用:

  • @RestController(我知道它与@Controller+ 相同@ResponseBody)
  • @ResponseStatus

例如:

@RestController
@RequestMapping("/person")
@Profile("restcontroller")
public class PersonRestController {

With the method (just to create)

@RequestMapping(value="/", method=RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
public void createPerson(@RequestBody Person person, HttpServletRequest request, HttpServletResponse response){
    logger.info("PersonRestController  - createPerson");
    if(person==null)
        logger.error("person is null!!!");
    else
        logger.info("{}", person.toString());

    personMapRepository.savePerson(person);
    response.setHeader("1", "uno");

    //http://localhost:8080/spring-utility/person/1
    response.setHeader("Location", request.getRequestURL().append(person.getId()).toString());
}

to return something

@RequestMapping(value="/{id}", method=RequestMethod.GET)
@ResponseStatus(HttpStatus.FOUND)
public Person getPerson(@PathVariable Integer id){
    logger.info("PersonRestController  - getPerson - id: {}", id);
    Person person = personMapRepository.findPerson(id);
    return person;
}

我的问题是:

  1. 如果出于确凿的原因或特定情况,必须强制使用另一种选择
  2. 如果(1)无关紧要,则建议采用什么方法以及为什么。

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2020-04-13

共1个答案

小编典典

ResponseEntity旨在表示整个HTTP响应。你可以控制其中的所有内容:状态码,标头和正文。

@ResponseBody是HTTP响应正文的标记,并@ResponseStatus声明HTTP响应的状态代码。

@ResponseStatus不是很灵活。它标记了整个方法,因此你必须确保你的处理程序方法始终具有相同的行为。而且你仍然无法设置标题。你需要HttpServletResponseHttpHeaders参数。

基本上,ResponseEntity你可以做更多的事情。

2020-04-13