使用@valid where/how自定义错误消息进行春季验证 [英] spring validation with @valid where/how custom error messages

问题描述

我正在尝试使用属性文件中的错误消息进行一些Spring验证. 但是我发现所有示例似乎都对值进行了硬编码，或者从属性文件中获取了值，但使用了Validator类并在那里进行了检索.

I'm trying to do some spring validation with the error messages in properties files. But the examples I find all seem to have the values hardcoded, or gotten from a properties file but using a validator class and retrieving it there.

我的设置有些不同. 我在requestmapping中使用@Valid批注，而我的@Valid类使用@NotNull等. 我看过一些人在做@NotNull(message ="blablabla");的例子. 但这也是经过硬编码的，我想将消息放入属性文件中，以便我可以轻松地对其进行即时编辑，以便将来可以轻松实现i18n.

My setup is a bit different. I'm using the @Valid annotation in my requestmapping, and my @Valid class uses @NotNull etc. I've seen some examples where people do @NotNull(message = "blablabla"); But that's also hardcoded, and I'd like to put the messages in a properties file so I can easily edit it on the fly and so I can easily implement i18n in the future.

对于如何实现这一目标的任何投入，我们将不胜感激.

Any input on how to achieve this would be appreciated.

推荐答案

它的工作方式与显式Validator完全相同-您

It works exactly the same way as with explicit Validator - you declare a MessageSource and write error messages in .properties files. Messages codes are formed as constraintName.modelAttributeName.propertyName:

publib class Foo {
    @NotNull private String name;
    ...
}

.

@RequestMapping
public String submitFoo(@Valid Foo foo, ...) { ... }

messages.properties:

NotNull.foo.name=...

MessageSource声明:

<bean id="messageSource"
    class="org.springframework.context.support.ResourceBundleMessageSource">
    <property name="basename" value = "messages" />
</bean>

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