字符的Hibernate验证器 [英] Hibernate validator for chars

问题描述

是否可以验证字符是M还是F，还是需要使用正则表达式的字符串？

Is it possible to validate that a Character is either M or F or do I need to use a string with a regex?

@Pattern(regexp = "^[MF]{1}$", message = "customer.sex.regex")
private String sex;

我想使用

I would like to use

private Character sex;

推荐答案

你应该这个正则表达式只接受M或F 。

Your should this regular expression for accepting only M or F.

@Pattern(regexp = "^[M|F]{1}$", message ="Must be M or F")

在第二种使用字符的情况下，您需要验证此字符是否M或F。其他可以设置为性别。

In your second case of using as Character, you need to validate that this character is whether "M" or "F". Other can be set as sex.

对于字符，您不能使用 @Pattern
$ b

You cannot use @Pattern for Character variable, You will get below exception.

javax.validation.UnexpectedTypeException：HV000030：没有验证器可以

$ b

找到类型为：java.lang.Character。

javax.validation.UnexpectedTypeException: HV000030: No validator could be found for type: java.lang.Character.

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