In this project ....
Web.xml is located under Project Folder > web > Web-INF > web.xml
This project is already created by or clients and we are maintaining it.
Actually we do the build using the build.xml script using ant, it will generate a app.war then we will deploy it in tomcat to run.
In the above process there is no way i can debug the code.
More info: This is not a struts project, it is Spring MVC project