为不同的复合组件指定不同的错误消息 [英] Specifying different error messages for different composite components

问题描述

是否有一种方法可以为不同种类的复合组件提供必需的消息?

Is there a way to have REQUIRED messages for different kinds of composite components?

我希望能够在消息束中说出类似以下内容

I'd like to be able to say something like the following in a message bundle

javax.faces.component.UIInput.REQUIRED=Please enter a value for {0}
com.anon.sandbox.jsf.component.NameField.REQUIRED=ENTER A {} OR DIE
com.anon.sandbox.jsf.component.EmailField.REQUIRED=You forgot to enter a {0} address

我可以通过为每种输入字段实现自定义验证器来做到这一点，但是鉴于我要自定义的唯一行为是错误消息，这似乎有些过分.

I could do this by implementing custom validators for each kind of input field, but given that the only behaviour I want to customise is the error message this seems like overkill.

推荐答案

使用requiredMessage属性指定它们.

<h:inputText ... requiredMessage="#{cc.resourceBundleMap.requiredMessage}" />

对于您不知道的情况，#{cc.resourceBundleMap}引用特定于复合组件的资源束，该资源束由与同一个文件夹中的复合组件具有相同文件名的.properties文件标识.

For the case you didn't knew that, the #{cc.resourceBundleMap} refers the composite component specific resource bundle which is identified by a .properties file with the same filename as the composite component in the same folder.

因此，假设您有一个复合组件文件foo.xhtml，然后可以在同一文件夹中的foo.properties(因此，是foo_en.properties，foo_es.properties等)中指定本地化的消息.然后，这些本地化的消息可由前面提到的#{cc.resourceBundleMap}提供.

So, imagine that you've a composite component file foo.xhtml, then you can specify the localized messages in foo.properties (and consequently foo_en.properties, foo_es.properties, etc) which reside in the very same folder. Those localized messages are then available by the aforementioned #{cc.resourceBundleMap}.

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