Cabeceras útiles para JSP

headers.jsp

<%
response.setHeader("Pragma", "No-chache");
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Content-Type","text/html;charset=UTF-8");
response.setHeader("P3P","CP=\"NOI ADM DEV PSAi COM NAV OUR OTR STP IND DEM\"");
response.setContentType("text/html; charset=UTF-8");
request.setCharacterEncoding("UTF8");
%>