<我：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
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> <的复合组件/ code>。但是当我尝试在<$ c c的，抛出以下异常：< cc：implementation> 中使用< my：foo> 时$ c>< my：bar>
I have a composite component named <my:foo> and I'm building another composite component named <my:bar>. But when I attempt to use <my:foo> inside the <cc:implementation> of <my:bar>, the following exception is been thrown:
< my：foo>标签库支持命名空间： http：/ /java.sun.com/jsf/composite/mycomponents ，但没有为名称定义标签：foo
<my:foo>Tag Library supports namespace: http://java.sun.com/jsf/composite/mycomponents, but no tag was defined for name: foo
如何这是由于这引起的，我该如何解决呢？
How is this caused and how can I solve it?
推荐答案
这是由Mojarra 2.1.8中引入的错误引起的，继续在2.1.9，并在2.1.10中修复。此错误导致复合组件自己的XML命名空间无法在根XML元素中声明，如< ui：component> / < ui：composition> / < html> / etc如下：
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. 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:
<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>
当您尝试嵌套< my时，会导致以下异常：foo> 在< cc：implementation> 内。
< my：foo>标签库支持命名空间： http://java.sun.com/jsf/composite/mycomponents ，但没有为名称定义标签：foo
<my:foo>Tag Library supports namespace: http://java.sun.com/jsf/composite/mycomponents, but no tag was defined for name: foo
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> 。
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>.
<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>
参见：
- Mojarra issue 2392
- < a href =http://java.net/jira/browse/JAVASERVERFACES-2437 =nofollow> Mojarra issue 2437
- Mojarra issue 2392
- Mojarra issue 2437
See also:
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