References: JSTL 1.2

Assumptions: Your apps server is Tomcat 5.x or above; JSTL 1.2 is now part of the Java EE 5 platform;

In a file called showandtell.jsp somewhere in the 'webapps' directory, it has something similar to the following:

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

     The remote host is ${header["host"]}<br>
     The user agent is ${header["User-Agent"]}<br>
     The encoding scheme(s) accepted is (are) ${header["Accept-Encoding"]}<br>			
			

 
     The remote host is www.any2any.info:8080
     The user agent is Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11
     The encoding scheme(s) accepted is (are) gzip,deflate