据我所知，默认情况下没有这样的指标，但您可以创建自己的指标，如下所示：

@Component
public class FailedRequestsCounter {
  private final Counter counter;

  public FailedRequestsCounter(MeterRegistry registry) {
    counter = Counter.builder("failed_requests.count")
        .description("Number of requests failed due to json serialization or validation error.")
        .register(registry);
  }

  public void increment(){
    counter.increment();
  }
}

FailedRequestsCounter组件应用于在处理由验证和序列化错误引起的异常时递增计数器。理想情况下，您应该有一个全局处理异常的@ControllerAdvice，例如：

@ControllerAdvice
public class GlobalExceptionHandler {
  @Autowired
  private FailedRequestsCounter failedRequestsCounter;

  // Validation errors - RequestParam
  @ExceptionHandler(ConstraintViolationException.class)
  ResponseEntity<String> handleConstraintViolationException(ConstraintViolationException e) {
    failedRequestsCounter.increment();
    return new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);
  }

  // Validation errors - RequestBody and PathVariable
  @ExceptionHandler(MethodArgumentNotValidException.class)
  ResponseEntity<String> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
    failedRequestsCounter.increment();
    return new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);
  }

  // Serialization errors
  @ExceptionHandler(HttpMessageNotReadableException.class)
  ResponseEntity<String> handleHttpMessageNotReadableException(HttpMessageNotReadableException e) {
    failedRequestsCounter.increment();
    return new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);
  }
}