Spring MVC跨域验证:代码味道？

Question

这是一种代码味道，还是在Spring表单中实现跨域验证的最佳方式？

@FieldRequiredIf.List({
    @FieldRequiredIf(ifField="firstHomePhoneNumber", matches={EMPTY, NULL},require ="firstMobilePhoneNumber",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.firstMobilePhoneNumber",groups=FirstLife.class),
    @FieldRequiredIf(ifField="secondHomePhoneNumber", matches={EMPTY,NULL},require ="secondMobilePhoneNumber",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.secondMobilePhoneNumber",groups=SecondLife.class),
    @FieldRequiredIf(ifField="lifeAssuredIsPolicyOwner", matches={FALSE},require ="policyOwnerName",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.policyOwnerName"),
    @FieldRequiredIf(ifField="lifeAssuredIsPolicyOwner", matches={FALSE},require ="policyOwnerAddress",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.policyOwnerAddress"),
    @FieldRequiredIf(ifField="insurableInterest", matches={InsurableInterestConstants.OTHER},require ="insurableInterestReason",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.insurableInterestReason",groups = NonSingleNonMortgage.class),
    @FieldRequiredIf(ifField="firstAddress2", matches={NOT_EMPTY},require ="firstAddress1",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.firstAddress1",groups=FirstLife.class),
    @FieldRequiredIf(ifField="firstAddress3", matches={NOT_EMPTY},require ="firstAddress2",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.firstAddress2",groups=FirstLife.class),
    @FieldRequiredIf(ifField="firstAddress4", matches={NOT_EMPTY},require ="firstAddress3",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.firstAddress3",groups=FirstLife.class),
    @FieldRequiredIf(ifField="firstAddress5", matches={NOT_EMPTY},require ="firstAddress4",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.firstAddress4",groups=FirstLife.class),
    @FieldRequiredIf(ifField="secondAddress2", matches={NOT_EMPTY},require ="secondAddress1",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.secondAddress1",groups=SecondLife.class),
    @FieldRequiredIf(ifField="secondAddress3", matches={NOT_EMPTY},require ="secondAddress2",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.secondAddress2",groups=SecondLife.class),
    @FieldRequiredIf(ifField="secondAddress4", matches={NOT_EMPTY},require ="secondAddress3",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.secondAddress3",groups=SecondLife.class),
    @FieldRequiredIf(ifField="secondAddress5", matches={NOT_EMPTY},require ="secondAddress4",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.secondAddress4",groups=SecondLife.class)
})
public class CorrespondenceDetailsForm {
    ...
}

重构

为了简化上述工作，我开始将列出的批注的几个逻辑组重构为单个自定义批注：(@FirstLifeContactDetailsObserver和@ started )。下面是重构后的类级注释：

@FieldRequiredIf.List({
    @FieldRequiredIf(ifField="lifeAssuredIsPolicyOwner", matches={FALSE},require ="policyOwnerName",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.policyOwnerName"),
    @FieldRequiredIf(ifField="lifeAssuredIsPolicyOwner", matches={FALSE},require ="policyOwnerAddress",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.policyOwnerAddress"),
    @FieldRequiredIf(ifField="insurableInterest", matches={InsurableInterestConstants.OTHER},require ="insurableInterestReason",elseDisplay = "FieldRequiredIf.correspondenceDetailsForm.insurableInterestReason",groups = NonSingleNonMortgage.class)
})
@FirstLifeContactDetailsObserver
@SecondLifeContactDetailsObserver
public class CorrespondenceDetailsForm {
    ...
}

但这并没有真正改善这种情况，因为我需要为每个新注释创建一个验证器类。

在Spring MVC中有没有更好的跨域验证方法？

Answer 1

为了完成这个问题并把它打成一个漂亮的小结，勘误表中的两个评论者提到，这个场景的前图实际上是the recommended way to implement cross-field validations。

虽然这肯定是从Spring MVC的迎风方向散发出的一种设计气息，但这对您的代码来说不是问题。

Answer 2

这就是你在Spring中要做的事情。您可能想看看JSF已经发展到什么程度，并重新评估Spring是否仍然是您的首选。Seams可能有助于更整洁的多字段验证。