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POUsing SiteMesh with RequestDispatcher's forward()
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  1. POUsing SiteMesh with RequestDispatcher's forward()
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    copied!<p>I'm attempting to integrate <a href="http://www.opensymphony.com/sitemesh/" rel="noreferrer">SiteMesh</a> into a legacy application using Tomcat 5 as my a container. I have a <code>main.jsp</code> that I'm decorating with a simple decorator.</p> <p>In <code>decorators.xml</code>, I've just got one decorator defined:</p> <pre><code>&lt;decorators defaultdir="/decorators"&gt; &lt;decorator name="layout-main" page="layout-main.jsp"&gt; &lt;pattern&gt;/jsp/main.jsp&lt;/pattern&gt; &lt;/decorator&gt; &lt;/decorators&gt; </code></pre> <p>This decorator works if I manually go to <code>http://example.com/my-webapp/jsp/main.jsp</code>. However, there are a few places where a servlet, instead of doing a redirect to a jsp, does a <a href="http://java.sun.com/javaee/5/docs/api/javax/servlet/RequestDispatcher.html#forward(javax.servlet.ServletRequest,%20javax.servlet.ServletResponse)" rel="noreferrer">forward</a>:</p> <pre><code>getServletContext().getRequestDispatcher("/jsp/main.jsp").forward(request, response); </code></pre> <p>This means that the URL remains at something like <code>http://example.com/my-webapp/servlet/MyServlet</code> instead of the jsp file and is therefore not being decorated, I presume since it doesn't match the pattern in <code>decorators.xml</code>.</p> <p>I can't do a <code>&lt;pattern&gt;/*&lt;/pattern&gt;</code> because there are other jsps that do not need to be decorated by <code>layout-main.jsp</code>. I can't do a <code>&lt;pattern&gt;/servlet/MyServlet*&lt;/pattern&gt;</code> because <code>MyServlet</code> may forward to <code>main.jsp</code> sometimes and perhaps <code>error.jsp</code> at other times.</p> <p>Is there a way to work around this without expansive changes to how the servlets work? Since it's a legacy app I don't have as much freedom to change things, so I'm hoping for something configuration-wise that will fix this.</p> <p>SiteMesh's documentation really isn't that great. I've been working mostly off the example application that comes with the distribution. I really like SiteMesh, and am hoping I can get it to work in this case.</p>
 

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