检查哪个bean字段有违规

Question

如何检查bean中的哪个字段实际上存在违规?

考虑以下代码:

Set<ConstraintViolation<Contact>> violations = validator.validate(contact);
if(violations.isEmpty()) {
} else {
violations.forEach(violation -> {
// Check which field bean field had a violation
});
}

你可以这样做:

if(fieldWithError.equals("email") && (error instanceof ShouldBeGmail)) {
doThis();
} else if(fieldWithError.equals("phoneNumber") && (error instanceof ShouldBeWithinCountry)) {
doThat();
}

Answer 1

应该可以:

if(violations.isEmpty()) {
} else {
violations.forEach(violation -> {
String fieldName = violation.getPropertyPath().toString();
});
}