Javascript does not work under JSF template

问题

I'm using JSF templates and Primefaces.

Javascript code does not seem to be working under ui:composition and ui:define tags. The following code is not hitting the loaded() method. This is the content.xhtml file

<h:head>
<script language="javascript">
    function loaded() {
        alert("Working!!");
    }
</script>
</h:head>

<ui:composition template="/template/template.xhtml">
<ui:define name="content">
<h:body style="width:100%;height:100%;" onload="loaded()">
     <p class="item">Random text</p>
</h:body>
</ui:define>
</ui:composition>

but when i remove the define and composition tags the loaded function is called. Any idea why this is happening ?

Here is the template file

<!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:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">


<h:head>
<title><ui:insert name="title">Template</ui:insert></title>
</h:head>

<h:body>

<div id="header">
    <ui:insert name="header">
        <ui:include src="../menu.xhtml" />
    </ui:insert>
</div>


<div id="content">
    <ui:insert name="content">
        <ui:include src="../content.xhtml" />
    </ui:insert>
</div>

<div id="footer">
    <ui:insert name="footer">
        This is a footer
    </ui:insert>
</div>

回答1:

Everything outside <ui:composition> is ignored during building the view. Also, redeclaring <h:body> once again is unnecessary. To use a script which runs during on page load, better use a <h:outputScript target="body">. This will be relocated to end of body and thus be invoked after the necessary HTML DOM elements are been built. This is also somewhat faster than an onload.

All with all, your entire content.xhtml must look like this:

<ui:composition template="/template/template.xhtml"
    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"
>
    <ui:define name="content">
        <h:outputScript target="body">
            alert("Working!!");
        </h:outputScript>

        <p class="item">Random text</p>
    </ui:define>
</ui:composition>