hibernateValidator 升级

hibernateValidator框架返回 ：："字段 不能为null"

public class ValidatorUtils {

	public static String validateModel(Object obj) {
		StringBuffer buffer = new StringBuffer();
		ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
		Validator validator = factory.getValidator();
		Set<ConstraintViolation<Object>> constraintViolations = validator.validate(obj);
		Iterator<ConstraintViolation<Object>> iter = constraintViolations.iterator();
		ConstraintViolation<Object> filed;
		while (iter.hasNext()) {
			filed = iter.next();
			String message = filed.getMessage();
			Path current = filed.getPropertyPath();
			message = current.toString() + " " + message;
			buffer.append(message).append(";");
		}
		return buffer.toString();
	}
}