<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.net.URL" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <% String filePath = "/WEB-INF/jsp/customerror.jsp"; URL fileURL = pageContext.getServletContext().getResource(filePath); if(fileURL!=null) { %> <% } %> ${title}