将JSP页面包含到另一个JSP页面中，如何避免多个HEAD / BODY段？ [英] Including JSP page into another JSP page, how to avoid multiple HEAD / BODY sections?
问题描述
我想将JSP页面包含到另一个JSP页面中。假设我有 master.jsp ，包括 slave.jsp 。
I would like to include a JSP page into another JSP page. Let's say that I have master.jsp that is including slave.jsp.
As slave.jsp 有自己的< head> 部分，用于处理JavaScript和CSS ，是否有一种方法或可能是另一种方法来合并主和奴隶 HEAD 部分成一个？同样应该对 BODY 部分做同样的事情。
As slave.jsp has its own <head> section for dealing with JavaScript and CSS, is there a way or maybe another method to merge the masterand slave HEADs section into a single one? Also the same should done for the BODYs section.
我最近一直在使用 sitemesh ，但我认为是为每个页面设置模板是非常不切实际的。
I have been using sitemesh recently but I think is quite impractical to setup a template for each page.
推荐答案
我通过传递参数包括页面时。
I went for this solution by passing a parameter when including the page.
master.jsp
<head>
blablabla
<c:import url="slave.jsp">
<c:param name="sectionName" value="HEAD" />
</c:import>
</head>
<body>
blablabla
<c:import url="slave.jsp">
</c:import>
</body>
然后在 slave.jsp 中读取参数并自定义部件页面的呈现。
and then in slave.jsp the parameter is read and the custom part of the page is rendered.
<c:choose>
<c:when test="${param.sectionName == 'HEAD'}">
head section here [without the <HEAD> tags !]
</c:when>
<c:otherwise>
body section here [without the <BODY> tags !]
</c:otherwise>
</c:choose>
不太好看，但工作正常。通过这种方式，我可以删除重复的 HEAD 和 BODY 部分。
not too nice to see but working. In this way I am able to remove the duplication of HEAD and BODY parts.
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