json - Spring Boot HttpMediaTypeNotSupportedException

Question

我目前正在绞尽脑汁想知道为什么包含参数 @RequestBody Car car 会破坏我的终点。

我对 Spring Boot 非常陌生，并尝试将 json 字符串发布到我的 rest Controller 。

这是我的 Controller :

@RestController
@RequestMapping("/v1/car")
@EnableWebMvc
public class CarController  {

private static final Log LOGGER = LogFactory.getLog(CarController.class);

@Autowired
private CarService carService;


@RequestMapping(value="/{accountId}", method = RequestMethod.POST, consumes={"text/plain", "application/*"})
ResponseEntity<?> start(@PathVariable final Integer accountId, @RequestBody Car car) {
    System.out.println("E: "+accountId);
    final long tid = Thread.currentThread().getId();
    final Boolean status = this.smarterWorkFlowService.startWorkFlow(accountId, car);
    return new ResponseEntity<Car>(new Car(), HttpStatus.ACCEPTED); 
}
}

我也使用 jackson 作为我的 json 解析器。我找了几个小时，没有找到任何可以帮助我解释为什么我收到 415 回复的原因。

{
"timestamp": 1425341476013,
"status": 415,
"error": "Unsupported Media Type",
"exception": "org.springframework.web.HttpMediaTypeNotSupportedException",
"message": "Unsupported Media Type",
"path": "/v1/experiences/12"
}
谢谢你的帮助!!

Answer 1

一、 Spring 开机@EnableWebMvc不需要。然后，如果您的 REST 服务需要生成 json 或 xml 使用

@RequestMapping(value = "properties", consumes = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE}, method = RequestMethod.POST)

测试您的服务

HttpHeaders headers = new HttpHeaders();
headers.add("Content-type", header);
headers.add("Accept", header);

UIProperty uiProperty = new UIProperty();
uiProperty.setPassword("emelendez");
uiProperty.setUser("emelendez");

HttpEntity entity = new HttpEntity(uiProperty, headers);

RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.exchange("http://localhost:8080/properties/1", HttpMethod.POST, entity,String.class);
return response.getBody();

用 application/json 替换标题或 application/xml .如果你使用的是xml，添加这个依赖

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
</dependency>