使用ui:composition时如何更改页面的head元素 [英] How to change head elements of a page when using ui:composition
问题描述
我想问一个问题，我有这样的主模板
I want to ask a question that i have a master template like this
<?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:h="http://java.sun.com/jsf/html">
<h:head>
<title>Login</title>
</h:head>
<h:body>
<div id="top">
<ui:insert name="top">
<ui:include src="header.xhtml" id="header"/>
</ui:insert>
</div>
<div>
<div id="content">
<ui:insert name="content"></ui:insert>
</div>
</div>
<div id="bottom" style="position: absolute;top: 675px;width: 100%" align="center">
<ui:insert name="bottom">
<ui:include src="footer.xhtml" id="footer"/>
</ui:insert>
</div>
</h:body>
</html>
在我的每一页上，我都使用类似的东西
On my each page i am using something like this
<?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:p="http://primefaces.prime.com.tr/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>City Setup</title>
</h:head>
<h:body>
<ui:composition template="./WEB-INF/templates/layout.xhtml">
<ui:define name="content">
<h:form id="cityReviewform">
......
</h:form>
</ui:define>
</ui:composition>
</h:body>
</html>
现在由于ui; composition而发生了什么，我的tile属性现在在每个页面上都可以使用，因为ui:composition丢弃了它外面的每个标签.现在，在每个页面上，我都有一个登录名(即主模板).所以我想问问我该如何在每个页面上显示其自己的标题而不是Login(主临时标题)?
Now what is happening that because of the ui;composition my tile attribute is now working on each page, because ui:composition discard every tag outside of it. Now on each page i have a title of Login(i.e of master template). So i want to ask that how can i do this that on each page, its own title shown instead of Login(master tempalte title)?
谢谢
推荐答案
在模板客户端中，<ui:composition>之外的所有被忽略.您需要更改模板方法，以在主模板中为标题提供<ui:insert>，以便可以由模板客户端中的<ui:define>进行定义.
In the template client, everything outside <ui:composition> is ignored. You need to change your template approach to provide an <ui:insert> for the title in the master template, so that it can be defined by an <ui:define> in the template client.
主模板:
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title><ui:insert name="title">Login</ui:insert></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</h:head>
<h:body>
<div id="top">
<ui:insert name="top">
<ui:include id="header" src="header.xhtml"/>
</ui:insert>
</div>
<div>
<div id="content">
<ui:insert name="content" />
</div>
</div>
<div id="bottom">
<ui:insert name="bottom">
<ui:include id="footer" src="footer.xhtml" />
</ui:insert>
</div>
</h:body>
</html>
模板客户端:
<ui:composition template="/WEB-INF/templates/layout.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<ui:define name="title">City Setup</ui:define>
<ui:define name="content">
<h:form id="cityReviewform">
...
</h:form>
</ui:define>
</ui:composition>
另请参见:
- 如何包含另一个XHTML JSF 2.0 Facelets在XHTML中使用HTML?
- How to include another XHTML in XHTML using JSF 2.0 Facelets?
See also:
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