jstl function length
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <hr width="500" color="red" align="left"> <c:set var="str" value="JSTL(JSP Standard Tag Library)"/> length : <b>${fn:length(str)}</b><br> <hr width="500" color="red" align="left"> </body> </html> JSTL tag ex) ...