XAPIExceptionHandlerAdvice.java 文件源码

@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
@ResponseBody
public XAPIErrorInfo handleMethodArgumentNotValidException(final HttpServletRequest request, MethodArgumentNotValidException e) {
    final List<String> errorMessages = new ArrayList<String>();
    for (ObjectError oe : e.getBindingResult().getAllErrors()) {
        if (oe instanceof FieldError) {
            final FieldError fe = (FieldError)oe;
            final String msg = String.format(
                    "Field error in object '%s' on field '%s': rejected value [%s].", fe.getObjectName(), fe.getField(), fe.getRejectedValue());
            errorMessages.add(msg);
        } else {
            errorMessages.add(oe.toString());
        }
    }
    final XAPIErrorInfo result = new XAPIErrorInfo(HttpStatus.BAD_REQUEST, request, errorMessages);
    this.logException(e);
    this.logError(result);
    return result;
}