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facelets自定义标记未呈现

facelets jsf

4

Panayiotis Karabassis · 技术社区 · 16 年前

我正在尝试用facelets创建一个自定义标记,但它没有呈现(即,标记在响应中显示为未放置)。

标签(/WEB-INF/facelets/tags/inputHumbnailSelector.xhtml):

<html 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:t="http://myfaces.apache.org/tomahawk">

<ui:composition>
 <div style="position: relative;">
  <img style="position: absolute; left: 0; top: 0;" src="#{image}"/>
  <div class="thumbnail-selector" style="position: absolute; left: #{backingBean.thumbnailLeft}; top: #{backingBean.thumbnailTop};"/>
 </div>
</ui:composition>

</html>

/WEB-INF/facelets/tags/panayk.taglib.xml:

<!DOCTYPE facelet-taglib PUBLIC "-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN" "http://java.sun.com/dtd/facelet-taglib_1_0.dtd">

<facelet-taglib>
 <namespace>http://panayk.endofinternet.org/jsf</namespace>
 <tag>
  <tag-name>inputThumbnailSelector</tag-name>
  <source>inputThumbnailSelector.xhtml</source>
 </tag>
</facelet-taglib>

my web.xml包含:

<context-param>
 <param-name>javax.faces.FACELETS_LIBRARIES</param-name>
 <param-value>/WEB-INF/facelets/tags/panayk.taglib.xml</param-value>
</context-param>

以下是如何调用标记的方法:

<!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:f="http://java.sun.com/jsf/core"
   xmlns:h="http://java.sun.com/jsf/html"
   xmlns:ui="http://java.sun.com/jsf/facelets"
   xmlns:t="http://myfaces.apache.org/tomahawk"
   xmlns:my="http://panayk.endofinternet.org/jsf">

<ui:composition template="/layout/layout.xhtml">
...  
   <my:inputThumbnailSelector image="${facesContext.externalContext.requestContextPath}/image/get.servlet?id=1" 
            backingBean="#{entryHandler}"/>
...
</ui:composition>

</html>

非常感谢!

3 回复 | 直到 8 年前

1

7

Tarik mtuygun 11 年前

我在这里找到了我的答案: https://community.oracle.com/thread/1719525

我想我找到了问题和解决方案(不是100%正确)。 上下文参数应为 facelets.LIBRARIES 不 javax.faces.FACELETS_LIBRARIES .

上下文参数 javax.faces.facelets_库 应替换已弃用的(根据JSF规范弃用)上下文参数 facelets.库 . 当使用后者时,在服务器启动期间日志中会显示一条警告,说明 facelets.库 已弃用,并且 javax.faces.facelets_库 应该改为使用。但我认为这只用于记录警告,即仍然是名称 facelets.库

2

0

Ha11owed 16 年前

我建议您这样做:

<ui:composition 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:t="http://myfaces.apache.org/tomahawk">

 <div style="position: relative;">
  <img style="position: absolute; left: 0; top: 0;" src="#{image}"/>
  <div class="thumbnail-selector" style="position: absolute; left: #{backingBean.thumbnailLeft}; top: #{backingBean.thumbnailTop};"/>
 </div>
</ui:composition>

but everything seems ok, since you use a layout, did you wrap the custom tag in a ui:define like this ?

<ui:define name="body">
<my:inputThumbnailSelector image="${facesContext.externalContext.requestContextPath}/image/get.servlet?id=1" 
            backingBean="#{entryHandler}"/>
</ui:define>

3

0

Dorin Brage 8 年前

确保您的*.taglib.xml配置正确。可能我的名称空间不正确,但它不起作用。当我改变了它的工作,我有自动完成(又名。代码完成)

<facelet-taglib version="2.2"
            xmlns="http://xmlns.jcp.org/xml/ns/javaee"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facelettaglibrary_2_2.xsd">
</facelet-taglib>