<dependency>
<groupId>org.apache.bval</groupId>
<artifactId>bval-jsr</artifactId>
<version>2.0.0</version>
</dependency>
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
public class User {
@NotNull
@Size(min = 2, max = 20)
private String name;
@Min(18)
private int age;
}
import org.apache.bval.jsr.ApacheValidatorFactory;
public class Main {
public static void main(String[] args) {
ApacheValidatorFactory factory = ApacheValidatorFactory.getDefault();
Validator validator = factory.getValidator();
User user = new User();
user.setName("John");
user.setAge(20);
Set<ConstraintViolation<User>> violations = validator.validate(user);
for (ConstraintViolation<User> violation : violations) {
System.out.println(violation.getPropertyPath() + ": " + violation.getMessage());
}
}
}
