import org.apache.bval.jsr303.ApacheValidationProvider;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
public class BeanValidator {
public static void main(String[] args) {
ValidatorFactory factory = Validation.byProvider(ApacheValidationProvider.class).configure().buildValidatorFactory();
Validator validator = factory.getValidator();
User user = new User();
user.setName(null);
user.setAge(17);
Set<ConstraintViolation<User>> violations = validator.validate(user);
if (violations.isEmpty()) {
} else {
for (ConstraintViolation<User> violation : violations) {
System.out.println(violation.getPropertyPath() + ": " + violation.getMessage());
}
}
}
}
public class User {
private String name;
private int age;
}
