我在REST控制器中一起使用@ControllerAdvice和@Valid注释时遇到了麻烦.
我有一个休息控制器声明如下:
@Controller
public class RestExample {
...
/**
* <XmlRequestUser><username>user1</username><password>password</password><name>Name</name><surname>Surname</surname></XmlRequestUser>
* curl -d "@restAddRequest.xml" -H "Content-Type:text/xml" http://localhost:8080/SpringExamples/servlets/rest/add
*/
@RequestMapping(value="rest/add", method=RequestMethod.POST)
public @ResponseBody String add(@Valid @RequestBody XmlRequestUser xmlUser) {
User user = new User();
user.setUsername(xmlUser.getUsername());
user.setPassword(xmlUser.getPassword());
user.setName(xmlUser.getName());
user.setSurname(xmlUser.getSurname());
// add user to the database
StaticData.users.put(xmlUser.getUsername(), user);
LOG.info("added user " + xmlUser.getUsername());
return "added user " + user.getUsername();
}
}
还有一个ErrorHandler类:
@ControllerAdvice
public class RestErrorHandler extends ResponseEntityExceptionHandler {
private static Logger LOG = Logger.getLogger(RestErrorHandler.class);
@ExceptionHandler(RuntimeException.class)
public ResponseEntity<Object> …Spring 验证返回长错误消息而不是自定义一次。
这是 dto 中的代码部分。
public class RequestDto implements Serializable {
@NotNull(message="{id.required}")
private Long id;
}
在控制器中为输入添加了@Valid。
@RequestMapping(value = ApiPath.PATH, method = RequestMethod.POST, produces = { "application/xml",
"application/json" })
public @ResponseBody ResultDecorator saveRequest(
@Valid @RequestBody RequestDto msaDisabScreenRequestDto) throws Exception {
}
API 返回以下错误。
<message>Validation failed for argument at index 0 in method: public om.gov.moh.msa.framework.resolver.ResultDecorator om.controller.MaController.saveRequest(om..dto.RequestDto) throws java.lang.Exception, with 1 error(s): [Field error in object 'requestDto' on field 'id': rejected value [null]; codes [NotNull.requestDto.id,NotNull.id,NotNull.java.lang.Long,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [requestDto.id,id]; arguments []; default …