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In servlets, getAttribute() and setAttribute() are only associated with HttpSession, ServletRequest and ServletContext, i.e attributes are defined only for context, request and session scopes. Why not for, say, ServletResponse or ServletConfig?
init-paramsdefined in web.xml.HttpServletResponsewill not avail anything, and neither it will make any sense, as response is for the client — not from the client, i.e. browser, and that is not capable of understanding that, nonetheless. And you must understand that JSP and Servlet both run on server-side, whatsoever. Hence, settng attributes torequestin servlet and getting those in JSP, doesn’t involve the client at all.