<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
public class User {
private String username;
private String password;
private String email;
}
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import java.util.Set;
public class UserService {
private Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
public void createUser(User user) {
Set<ConstraintViolation<User>> violations = validator.validate(user);
if (!violations.isEmpty()) {
StringBuilder errorMessage = new StringBuilder();
for (ConstraintViolation<User> violation : violations) {
errorMessage.append(violation.getMessage()).append("; ");
}
throw new IllegalArgumentException(errorMessage.toString());
}
}
}
properties
javax.validation.Validation.messageInterpolator=org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator
