learning_record_doc/java/工具类/Validation工具类.md

JAVAX Validation工具类

手动对对象进行验证

/**
 * @author dss
 * @since 2022/7/6
 */
public class ValidationUtil {
    /**
     * 开启快速结束模式 failFast (true)
     */
    private static final Validator validator = Validation.byProvider(HibernateValidator.class).configure().failFast(false).buildValidatorFactory().getValidator();
    /**
     * 校验对象
     *
     * @param t bean
     * @param groups 校验组
     * @return ValidResult
     */
    public static <T> void validateBean(T t,Class<?>...groups) {
        if (t==null) throw new MyException(RestResponse.MSG.PARAM_VALIDATION_FAILURE);
        Set<ConstraintViolation<T>> violationSet = validator.validate(t,groups);
        boolean hasError = violationSet != null && !violationSet.isEmpty();
        //存在验证错误直接抛出异常
        if (hasError){
            for (ConstraintViolation<T> violation : violationSet) {
                throw new MyException(RestResponse.MSG.PARAM_VALIDATION_FAILURE).setMsg(violation.getMessage());
            }
        }

    }
    /**
     * 校验bean的某一个属性
     *
     * @param obj          bean
     * @param propertyName 属性名称
     * @return ValidResult
     */
    public static <T> void validateProperty(T obj, String propertyName) {
        Set<ConstraintViolation<T>> violationSet = validator.validateProperty(obj, propertyName);
        boolean hasError = violationSet != null && !violationSet.isEmpty();
        //存在验证错误直接抛出异常
        if (hasError){
            for (ConstraintViolation<T> violation : violationSet) {
                throw new MyException(RestResponse.MSG.PARAM_VALIDATION_FAILURE).setMsg(violation.getMessage());
            }
        }
    }
}