In order to do this you would have to:
1-Get the source code for the version of
struts you're using. It's available at
The struts home page.
2-Subclass the ActionServlet and possibly the RequestProcessor classes so that the configuration information is read from a database instead of the struts-config.xml file.
3-Change the web.xml file so that your subclass is now the class specified for the action
servlet.
4-Create a process that would update the in-memory configuration every n minutes.