在JSF 2.0组件中包含子元素
[英]Include sub-element inside JSF 2.0 component
问题描述
This must be simple. 
这一定很简单。 I am trying to pass sub-element into a JSF component. 我试图将子元素传递给JSF组件。 I have my component declared as: 我将我的组件声明为：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
</composite:interface>
<composite:implementation>
<div style="border: 1px solid black;">
<ui:insert />
</div>
</composite:implementation>
</html>
Then I use this in a page by: 然后我在页面中使用它：
<box:box>
<p>Hello world!</p>
</box:box>
Unfortunately, the box renders ok (the black border) but the "Hello world!" 不幸的是，盒子呈现好（黑色边框），但“Hello world！” text is not included within it. 文本不包含在其中。 I also tried more verbose syntax by using <ui:insert name="content"> and calling by <ui:define name="content">Hello World!</ui:define> but it didn't work. 我还尝试使用<ui:insert name="content">并通过<ui:define name="content">Hello World!</ui:define>调用更详细的语法，但它不起作用。
Where might I be making a mistake? 我哪里可能犯错？
2 个解决方案
解决方案1
12 已采纳 2010-08-13 11:33:36
Ok I figured it out. 好吧我明白了。 You should use <composite:insertChildren /> instead as in: 您应该使用<composite:insertChildren />而不是：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
</composite:interface>
<composite:implementation>
<div style="border: 1px solid black;">
<composite:insertChildren />
</div>
</composite:implementation>
</html>
This works. 这有效。
解决方案2
0 2010-08-13 08:11:25
You have to send the content as parameter: 您必须将内容作为参数发送：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="content"/>
</composite:interface>
<composite:implementation>
<div style="border: 1px solid black;">
<h:outputText value="#{cc.attrs.content}" escape="false"/>
</div>
</composite:implementation>
</html>
and in your code: 在你的代码中：
<box:box content="<p>Hello world!</p>" />
I added the escape="false" since you are using HTML tags inside the EL expression. 我添加了escape="false"因为您在EL表达式中使用HTML标记。
Read more about composite elements in David Geary's article 在David Geary的文章中阅读有关复合元素的更多信息
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