在Java中实现交叉验证 [英] Implementing cross-validation in java

问题描述

我使用Spring Roo + jpa + hibernate，并且我想在我的应用程序中实现交叉验证(同时验证多个字段).

I use Spring Roo + jpa + hibernate and I would like to implement cross-validation (validation of several fields at the same time) in my application.

我不确定如何实施它.谁能给我建议和/或指导我找到相关文档?

I am not sure how to go about implementing it. Can anyone please advise me and/or direct me to relevant documentation?

推荐答案

看看Hibernate Validator，它可以进行实体验证(使用批注).

Have a look at Hibernate Validator, which allows entity validation (using annotations).

http://www.hibernate.org/subprojects/validator.html

简而言之，您可以通过在其上方放置休眠验证器/JPA注释来注释字段约束. (例如@Min(10))，并使用以下代码查找任何无效字段；

In short, you annotate your field constraints by placing hibernate validator/ JPA annotations above them. (E.g. @Min(10)) and use the following piece of code to find any invalid fields;

ValidatorFactory factory = Validation.byDefaultProvider().configure().traversableResolver(new CustomTraversableResolver() ).buildValidatorFactory();
Validator validator = factory.getValidator();
Set<ConstraintViolation<BaseValidationObject>> constraintViolations = Validator.validate(myEntityToValidate);

如果需要验证实体之间的特定关系，则可以编写自定义验证器来满足需要.

If you need to validate specific relationships between entities, you can write custom validators to fit that need.

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