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Integrating WebWork with SiteMesh is amazingly simple: you don't have to do anything in fact. WebWork stores all its value stack information in the request attributes, meaning that if you wish to display data that is in the stack (or even the ActionContext) you can do so by using the normal tag libraries that come with WebWork. That's it!

Passing data around

One thing to note is when you want to pass a value from a decorated page to a decorator using the <ww:set> tag, you need to specify a scope (request, session, application) if the decorated page is invoked directly (not a result of an action). By default if no action has been executed and no scope was specified, the set value will only availlable from the same PageContext.There are a few caveats with using WebWork's localization in Sitemesh Decorators. Take a look at Using Localized Texts in Sitemesh Decorators..

Localization

In WebWork 2.1.7, support was added that makes using i18n in decorators much easier. Now using the <ww:text/> tag works seemlessly. In the rare event where you need to reference an i18n string, use the id attribute as documented in the Text tag.

An example of such situation is given below. Typically embedding i18n in to form elements would be done using the following:

<ww:textfield label="getText('com.acme.login.text')" name="'login'"/>

However, due to the way WebWork and SiteMesh work, you would need to seperate the above code in to two tags.

<ww:text id="login" name="'com.acme.login.text'"/>
<ww:textfield label="#login" name="'login'"/>