How to change contentType of a jsp page response at run time without using scriplet

write the following lines of code in your jsp

<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<c:set property="contentType" target="${pageContext.response}" value="text/html;charset=UTF-8"/>