How do I find absolute URL of an action in Struts 2

Suppose I have two a开发者_StackOverflow社区ctions details and edit

I need to display in the view that corresponds to details action an link that points to edit action. The problem is that I need this link to be absolute. How can I find the URL of edit action?

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Maybe the s:url tag and the s:a tag will help?

http://struts.apache.org/2.1.6/docs/url.html

http://struts.apache.org/2.1.6/docs/a.html