<dependency>
<groupId>org.apache.bval</groupId>
<artifactId>bval-jsr303</artifactId>
<version>1.2.0</version>
</dependency>
groovy
implementation 'org.apache.bval:bval-jsr303:1.2.0'
public class User {
@NotNull
String username;
}
import org.apache.bval.jsr303.ApacheValidationProvider;
public class Main {
public static void main(String[] args) {
ApacheValidationProvider provider = new ApacheValidationProvider();
ValidatorFactory factory = provider.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
User user = new User();
user.setUsername(null);
Set<ConstraintViolation<User>> violations = validator.validate(user);
if (violations.isEmpty()) {
} else {
for (ConstraintViolation<User> violation : violations) {
}
}
}
}
