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JSP, can it work similar to yield, layout, content_for in Ruby/Rails/Erb

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我在风中等你
我在风中等你 2020-12-16 02:46

I am trying to figure out how to most effectively reuse JSP code. I love the way Rails/erb works in that way ... with yield, layout, content_for

Example:

mai

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  • 甜味超标
    2020-12-16 03:32

    I'm not familiar with what yield and content_for provide, but JSP tag files allow you a more robust way to template pages than JSP includes.

    Example:

    layout.tag

    <%@ tag body-content="scriptless" %>
<%@ attribute name="pageTitle" required="true" type="java.lang.String" %>

<html>
<head>
    <title>${pageTitle}</title>
</head>
<body>
    <jsp:doBody/>
</body>
</html>

    An individual JSP

    <%@ taglib prefix="z" tagdir="/WEB-INF/tags" %>
<z:layout pageTitle="A simple page">
    <p>Hello, JSP!</p>
</z:layout>

    Just place your layout.tag in the /WEB-INF/tags directory. You can use any available prefix you want, I just used "z" for the example.

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  • 自闭症患者
    2020-12-16 03:46

    While you mentioned wanting no frameworks on top of stock jsp, the Layout functionality of the Stripes Framework does pretty much exactly what you're asking for.

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