我的Richfaces 4.0项目不适用于ui:composition标签。
这是一个xhtml文件代码:
<!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:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:rich="http://richfaces.org/rich"
xmlns:a4j="http://richfaces.org/a4j">
<h:head>
<title>RichFaces</title>
</h:head>
<h:body>
<ui:composition>
<h:form>
<h:selectOneMenu value="#{selectsBean.currentType}"
valueChangeListener="#{selectsBean.valueChanged}">
<f:selectItems value="#{selectsBean.firstList}" />
<a4j:ajax event="valueChange" render="second" execute="@this" />
</h:selectOneMenu>
<a4j:outputPanel id="second" layout="block">
<h:selectOneMenu value="#{selectsBean.currentType}"
rendered="#{not empty selectsBean.currentType}">
<f:selectItems value="#{selectsBean.secondList}" />
</h:selectOneMenu>
</a4j:outputPanel>
</h:form>
</ui:composition>
</h:body>
</html>
如果我删除ui:composition标签,页面工作正常,但是使用此标签时,外观不会加载,而valueChangeListener也不起作用。哪里可能是问题?
UPD: 托马斯指出了一个错误,但页面仍无效。现在xhtml文件内容:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich">
<h:form>
<h:selectOneMenu value="#{selectsBean.currentType}"
valueChangeListener="#{selectsBean.valueChanged}">
<f:selectItems value="#{selectsBean.firstList}" />
<a4j:ajax event="valueChange" render="second" execute="@this" />
</h:selectOneMenu>
<a4j:outputPanel id="second" layout="block">
<h:selectOneMenu value="#{selectsBean.currentType}"
rendered="#{not empty selectsBean.currentType}">
<f:selectItems value="#{selectsBean.secondList}" />
</h:selectOneMenu>
</a4j:outputPanel>
</h:form>
</ui:composition>
答案 0 :(得分:1)
来自facelets doc:Any content outside of the UI Composition tag will be ignored by the Facelets view handler.
来自官方JSF2文档:JSF disregards everything outside of the composition...
AFAIK <ui:composition>
标记必须是文件中的顶级元素。