<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.2.0.Final</version>
</dependency>
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotBlank;
public class Person {
private String name;
private int age;
}
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import javax.validation.ConstraintViolation;
import java.util.Set;
public class ValidatorExample {
public static void main(String[] args) {
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
Person person = new Person();
person.setName("");
person.setAge(16);
Set<ConstraintViolation<Person>> violations = validator.validate(person);
for (ConstraintViolation<Person> violation : violations) {
System.out.println(violation.getMessage());
}
}
}
