Boa tarde galera Antigamente eu criava sites e redirecionava os links para um iframe, fazendo isso não precisava re-criar a pagina novamente(com menus,banner,etc..) Porém vejo que hoje em dia no html5 para cada link …

Paginas html

Ola @nielzinnxd,
para templates é assim mesmo, isto porque ele não dependem de nada, apenas o browser para abrir e renderizar o HTML. Em aplicações JavaEE eu uso o Tiles da apache que me ajuda a compor meus layouts, fica bem legal, só implemento o conteúdo mesmo, o restante ele já faz o include que preciso ex:

Tiles Framework

Abaixo um exemplo com bootstrap para ver como fica.

Head

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="tiles" uri="http://tiles.apache.org/tags-tiles"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="icon" href="${pageContext.request.contextPath}/assets/images/favicon.ico">

    <title>Starter Template for Bootstrap</title>

    <!-- Bootstrap core CSS -->
    <link href="${pageContext.request.contextPath}/assets/css/bootstrap.min.css" rel="stylesheet">

    <!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
    <link href="${pageContext.request.contextPath}/assets/css/ie10-viewport-bug-workaround.css" rel="stylesheet">

    <!-- Custom styles for this template -->
    <link href="${pageContext.request.contextPath}/assets/css/starter-template.css" rel="stylesheet">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
  </head>

Master

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="tiles" uri="http://tiles.apache.org/tags-tiles"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<!-- HEAD -->
<tiles:insertAttribute name="head" />

<!-- BODY -->
<tiles:insertAttribute name="body" />

<!-- FOOTER -->
<tiles:insertAttribute name="footer" />

Footer

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!-- Bootstrap core JavaScript
    ================================================== -->
    <!-- Placed at the end of the document so the pages load faster -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script>window.jQuery || document.write('<script src="${pageContext.request.contextPath}/assets/js/vendor/jquery.min.js"><\/script>')</script>
    <script src="${pageContext.request.contextPath}/assets/js/bootstrap.min.js"></script>
    <!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
    <script src="${pageContext.request.contextPath}/assets/js/ie10-viewport-bug-workaround.js"></script>
  </body>
</html>

Minha Dashboard

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<body>
    <nav class="navbar navbar-inverse navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="#">Project name</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
          <ul class="nav navbar-nav">
            <li class="active"><a href="#">Home</a></li>
            <li><a href="#about">About</a></li>
            <li><a href="#contact">Contact</a></li>
          </ul>
        </div><!--/.nav-collapse -->
      </div>
    </nav>

    <div class="container">

      <div class="starter-template">
        <h1>Bootstrap starter template</h1>
        <p class="lead">Use this document as a way to quickly start any new project.<br> All you get is this text and a mostly barebones HTML document.</p>
      </div>

    </div><!-- /.container -->

A parte chata é que o Tiles tem um arquivo chamado tiles.xml que ficam os mapeamentos, mas não é nada tão complicado, só precisa ficar bem mapeado, ex:

<?xml version="1.0"?>
<!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration 3.0//EN" "http://tiles.apache.org/dtds/tiles-config_3_0.dtd">
<tiles-definitions>
    <definition name="layout.master" template="/WEB-INF/jsp/layout/master.jsp">
        <put-attribute name="head" value="/WEB-INF/jsp/layout/head.jsp" />
        <put-attribute name="footer" value="/WEB-INF/jsp/layout/footer.jsp" />
    </definition>    
    
    <definition name="index.dashboard" extends="layout.master">
        <put-attribute name="body" value="/WEB-INF/jsp/index/dashboard.jsp" />
    </definition>
</tiles-definitions>

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