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Asked: 2026-06-14T01:18:39+00:00

I’m using Tiles 2.2.2 in my application (Struts 2.2.3). I want to use expressions

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I’m using Tiles 2.2.2 in my application (Struts 2.2.3). I want to use expressions in order to modify my screen composition depending on some attribute in the request. Basically, I would like to change the extends of a screen depending if there is a header in the request with name “x-requested-with” and the value is “XMLHttpRequest”. Is it possible to do that? I’ve tried to do a simple example with an attribute:

<put-attribute name="test"   expression="OGNL:requestScope"  cascade="true"/>

I’ve tried different expressions like OGNL:%{#request.headers.referer}, OGNL:#request.headers.referer, OGNL:requestScope.headers.referer , etc. But it always returns null. I haven’t found any documentation on how the OGNL expressions works on Tiles, so I’m working based on how I would do it with Struts. But it doesn’t seem to work.

Any ideas?

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1 Answer

  1. Editorial Team

    How are you initializing Tiles? If you’re using the StrutsTilesListener, OGNL expressions in tiles.xml won’t be evaluated.

    In my Struts2 app, I am using the org.apache.tiles.extras.complete.CompleteAutoloadTilesListener in web.xml and OGNL evaluation is working:

    <listener>
      <listener-class>org.apache.tiles.extras.complete.CompleteAutoloadTilesListener</listener-class>
</listener>

    In my case, I have a custom TilesResult with a property called ‘content’:

    <put-attribute name="content" expression="OGNL:content" />
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