This is a quick and dirty way to log the request parameters, when using a servlet.

                Enumeration db = request.getParameterNames();
                while (db.hasMoreElements()) {
                        String foo = (String)db.nextElement();
                        Logger.debug("***********************************");
                        Logger.debug("***" + foo + " : " + request.getParameter(foo) + "***");
                        Logger.debug("***********************************");
                }