我试图在globalexceptionhandler中处理httpmediatypenotsupportedexception，我想通过调用restcontroller的哪个方法知道发生了这个异常，或者我需要将pathvariables从requesturi中分离出来，在我将参数“consumes”添加到@patchmapping annotation之前，一切都正常REST控制器。如果没有这个参数，当我从 Postman 发送请求时，我也会得到httpmediatypenotsupportedexception和415代码，例如xml类型，但是我需要这个参数。所以，没有这个论点，我可以做以下两件事：
为了找出发生httpmediatypenotsupportedexception的方法，我在globalexceptionhandler的@exceptionhandler方法中添加了参数handlermethod，一切正常：

@ControllerAdvice
public class GlobalExceptionHandler {

    private static final Logger LOG = LogManager.getLogger();

    @ExceptionHandler(HttpMediaTypeNotSupportedException.class)
    public ResponseEntity<ApiError> handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex,
                                                                  HandlerMethod handlerMethod) {

        System.out.println("methodName: " + handlerMethod.getMethod().getName()); //methodName: updateOrder

    return new ResponseEntity<>(constructError(ex.getMessage(), HttpStatus.UNSUPPORTED_MEDIA_TYPE),
        new HttpHeaders(),
        HttpStatus.UNSUPPORTED_MEDIA_TYPE);

    }
}

要分离pathvariables或从requesturi获取它们，我做了以下操作：

@ControllerAdvice
public class GlobalExceptionHandler {

    private static final Logger LOG = LogManager.getLogger();

    @ExceptionHandler(HttpMediaTypeNotSupportedException.class)
    public ResponseEntity<ApiError> handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex,
                                                                  HttpServletRequest request
) {
Map pathVariables = (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
System.out.println("map : " + pathVariables); // map : {id=3} 

String path = (String)request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
System.out.println("path : " + path); // path : /reservation/{id}

return new ResponseEntity<>(constructError(ex.getMessage(), HttpStatus.UNSUPPORTED_MEDIA_TYPE),
        new HttpHeaders(),
        HttpStatus.UNSUPPORTED_MEDIA_TYPE);

    }
}

但是，如果我在restcontroller中将参数“consumes”添加到@patchmapping中，那么如果尝试在@exceptionhandler中添加handlermethod参数，那么我就没有为参数[1]和spring句柄获得合适的解析程序，然后httpmediatypenotsupportedexception由他自己完成。
另外，如果我尝试在没有参数handlermethod的情况下获取pathvariables，那么会得到null：

@ExceptionHandler(HttpMediaTypeNotSupportedException.class)
    public ResponseEntity<ApiError> handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex,
                                                                  HttpServletRequest request
) {
Map pathVariables = (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
System.out.println("map : " + pathVariables); // null
String path = (String)request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
System.out.println("path : " + path); // null

return new ResponseEntity<>(constructError(ex.getMessage(), HttpStatus.UNSUPPORTED_MEDIA_TYPE),
        new HttpHeaders(),
        HttpStatus.UNSUPPORTED_MEDIA_TYPE);

    }
}

问题：我应该如何处理这个异常，在restcontroller的@patchmapping注解中使用参数，并且我可以有发生这个异常的方法名，或者可以从requesturi中分离pathvariables？
我的控制器：

@RestController
    @RequestMapping(value = "/reservation")
    public class ReservationController {

        @PatchMapping(
                value = "/{id}",
               // consumes = MediaType.APPLICATION_JSON_UTF8_VALUE, // reason for my problems
                produces = MediaType.APPLICATION_JSON_UTF8_VALUE
        )
        public ResponseEntity<Void> updateOrder (@Valid @RequestBody Order order,
        @PathVariable Integer id) {

         // some logic

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

Thank you in advance!