字段的绑定验证器对于NullPresentation值不能正常工作

public class FooClass {

        Integer number;

        String numberInLetters;

        public Integer getNumber() {
            return number;
        }

        public void setNumber(Integer number) {
            this.number = number;
        }

        public String getNumberInLetters() {
            return numberInLetters;
        }

        public void setNumberInLetters(String numberInLetters) {
            this.numberInLetters = numberInLetters;
        }
    }

例如,当我为一个名为 数字 ,关联到 :

FooObject fooObject = new FooObject();
fooObject.setNumberInLetters("thirty");

IntegerRangeValidator validator = new IntegerRangeValidator("The value must be greater than or equal to 30", 30, null);
validator.setMinValueIncluded(true);

Binder<FooObject> binder = new Binder<>();
binder.forField(number)
                .withConverter(Integer::valueOf, String::valueOf, "Must be a number")
                .withNullRepresentation(0)
                .withValidator(intervaloValidator)
                .bind(FooObject::getNumber, Fooobject::setNumber);

验证器按预期工作

除非是零(null表示),在这种情况下,验证不起作用。

我可以解决这个问题,删除 withNullRepresentation(0) 但当我对我的表格收费时 null

当我为 领域