https://blog.csdn.net/dream_broken/article/details/53584169

public class BeanValidator {// private static Validator validator = SpringContextHolder.getBean(Validator.class);/*** 驗證某個bean的參數** @throws ValidationException 如果參數校驗不成功則拋出此異常*/public static void validate(Validator validator ,Object object) {//獲得驗證器//執行驗證Set constraintViolations = validator.validate(object);//如果有驗證信息，則將第一個取出來包裝成異常返回ConstraintViolation constraintViolation = getFirst(constraintViolations);if (constraintViolation != null) {throw new ValidationException(constraintViolation.getMessage()+"||"+object.toString());}}public static ConstraintViolation getFirst(Set<ConstraintViolation> constraintViolations){if(constraintViolations == null || constraintViolations.size() == 0){return null;}return constraintViolations.iterator().next();}}

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