我正在尝试处理POST请求中丢失的json数据。我的控制器类
@Controller
@RequestMapping("/testMetrics")
public class TestMetricsEndPoint extends StatusEndpointHandler implements RestEndPoint<TestMetrics,String> {
@Autowired
private ObjectMapper mapper;
@Autowired
private TestMetricsService testMetricsService;
@Override
public Status get(String id) {
// TODO Auto-generated method stub
return null;
}
@Override
@RequestMapping(method = RequestMethod.POST,consumes = "application/json", produces = "application/json")
public @ResponseBody Status create(@RequestBody TestMetrics core, BindingResult bindingResult) {
try {
if(bindingResult.hasErrors()){
throw new InvalidRequestException("Add failed, Please try again ", bindingResult);
}
if((core.getGroupName()==""||core.getGroupName()==null)&&(core.getTestName()==null||core.getTestName()=="")){
throw new MissingParametersException(HttpStatus.BAD_REQUEST.value(),"Please provide all necessary parameters");
}
TestMetrics dataObject = testMetricsService.create(core);
return response(HttpStatus.CREATED.value(),dataObject);
}catch (MissingParametersException e) {
return response(HttpStatus.BAD_REQUEST.value(),e.getLocalizedMessage());
}
}
扩展类：
public class StatusEndpointHandler {
public Status response(Integer statusCode,Object data){
Status status = new Status();
status.setData(data);
status.setStatus(statusCode);
return status;
}
}
已实现的接口：
public interface RestEndPoint<T extends SynRestBaseJSON, ID extends Serializable> {
Status get(ID id);
Status create(T entity, BindingResult bindingResult);}
请看突出显示的部分，所以，当我试图通过邮差测试结果，我得到的状态为200 OK。我不知道怎么解决它。请帮我处理一下这种情况。如何获得正确的状态代码？？
您应该将返回类型从@responseBody更改为responseEntity，这将允许您操作头，因此设置状态，这是文档中的一个片段
@RequestMapping("/handle")
public ResponseEntity<String> handle() {
URI location = ...;
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.setLocation(location);
responseHeaders.set("MyResponseHeader", "MyValue");
return new ResponseEntity<String>("Hello World", responseHeaders, HttpStatus.CREATED);
}
问题是处理字符串比较的代码，要比较字符串，必须使用equals，Postman还会传递空的testName和groupName
if ((core.getGroupName() == "" || core.getGroupName() == null) && (core.getTestName() == null || core.getTestName() == "")) {
}
因此将代码更改为下面
if ((core.getGroupName() == null || core.getGroupName().trim().isEmpty()) && (core.getTestName() == null || core.getTestName().trim().isEmpty())) {
}
还要为此编写exceptionhandler
@ExceptionHandler({ MissingParametersException.class })
public ModelAndView handleException(ServiceException ex, HttpServletResponse response) {
response.setStatus(HttpStatus.BAD_REQUEST.value());
ModelMap model = new ModelMap();
model.addAttribute("message", ex.getMessage());
return new ModelAndView("error", model);
}
您还可以使用验证api在实体类中定义验证约束，在这种情况下，您需要将@valid添加到请求模型对象
@Entity
class TestMetrics {
@Id
Long id;
@NotNull
@NotEmpty
@Column
String groupName;
@NotNull
@NotEmpty
@Column
String testName;
// Getters and Setters
}
在catch语句中，尝试通过
response.setStatus( HttpServletResponse.SC_BAD_REQUEST );
来源
