<my:foo>标记库支持命名空间：http：//java.sun.com/jsf/composite/mycomponents，但没有为name定义标记：foo
[英]<my:foo> Tag Library supports namespace: http://java.sun.com/jsf/composite/mycomponents, but no tag was defined for name: foo
问题描述
I have a composite component named <my:foo> and I'm building another composite component named <my:bar> . 
我有一个名为<my:foo>的复合组件，我正在构建另一个名为<my:bar>复合组件。 But when I attempt to use <my:foo> inside the <cc:implementation> of <my:bar> , the following exception is been thrown: 但是当我尝试在<my:foo>的<cc:implementation>中使用<my:foo> <my:bar> ，抛出了以下异常：
<my:foo>Tag Library supports namespace: http://java.sun.com/jsf/composite/mycomponents , but no tag was defined for name: foo<my:foo>标记库支持命名空间： http ： //java.sun.com/jsf/composite/mycomponents ，但没有为name定义标记：foo
How is this caused and how can I solve it? 这是怎么造成的，我该如何解决？
1 个解决方案
解决方案1
2 已采纳 2012-06-05 15:05:02
This is caused by a bug which was introduced in Mojarra 2.1.8, continued in 2.1.9 and is fixed in 2.1.10. 这是由Mojarra 2.1.8中引入的错误引起的，在2.1.9中继续，并在2.1.10中修复。 This bug causes that composite component's own XML namespace cannot be declared in a root XML element like <ui:component> / <ui:composition> / <html> /etc as follows: 此错误导致复合组件自己的XML命名空间无法在<ui:component> / <ui:composition> / <html> / etc等根XML元素中声明，如下所示：
<ui:component
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:cc="http://java.sun.com/jsf/composite"
xmlns:my="http://java.sun.com/jsf/composite/mycomponents"
>
<cc:interface>
...
</cc:interface>
<cc:implementation>
<my:foo />
</cc:implementation>
</ui:component>
This would result in the following exception when you attempt to nest <my:foo> inside the <cc:implementation> . 当您尝试在<cc:implementation>嵌套<my:foo>时，这将导致以下异常。
<my:foo>Tag Library supports namespace: http://java.sun.com/jsf/composite/mycomponents , but no tag was defined for name: foo<my:foo>标记库支持命名空间： http ： //java.sun.com/jsf/composite/mycomponents ，但没有为name定义标记：foo
The current workaround, apart from downgrading to 2.1.7 and waiting for 2.1.10 to be released, is to move the XML namespace declaration into the <cc:implementation> . 除了降级到2.1.7并等待2.1.10发布之外，当前的解决方法是将XML名称空间声明移动到<cc:implementation> 。
<ui:component
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:cc="http://java.sun.com/jsf/composite"
>
<cc:interface>
...
</cc:interface>
<cc:implementation xmlns:my="http://java.sun.com/jsf/composite/mycomponents">
<my:foo />
</cc:implementation>
</ui:component>
See also: 也可以看看：
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