Caching Struts Tiles
This is not an easy nut to crack, but if you want to cache Struts Tiles, you can clone the Tiles JSP InsertTag to suit the need. Around where doInclude(page) appears, render the referenced JSP page using an HTTPResponseWrapper, and ehcache the result before writing it to the tag pageContext writer. You might also consider augmenting the tile controller with a getCacheKey() method that returns a rich cache key in the form of a java.lang.Object with judiciously implemented overrides of equals() and hashcode(). Then, in the tag code, you can get a reference to the controller and therefore to getCacheKey() and cache the rendered-in-place content.
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