Dear All, Can any one here please guide me that what are the types of various xml files in tomcat like web.xml etc and what are the functions of each of this xml file.
The deployment descriptor (web.xml) is not Tomcat specific. It is part of the servlet spec and would be the same in any spec compliant container that you use. As Bear mentioned, the servlet spec is the best resource for learning about this file.
There is a link to the servlet spec in my signature.