其中要使用jstl标签库，需要导入jstl必要的jar包
<%@page import="cn.itcast.domain.Person"%>
<%@page import="java.util.*"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>
<%
List list = new ArrayList();
list.add(new Person("aaa"));
list.add(new Person("bbb"));
list.add(new Person("ccc"));
request.setAttribute("list", list);
%>
<c:forEach var="person" items="${list }">
${person.name } <br>
</c:forEach>
<br>
<%
Map map = new HashMap();
map.put("aa",new Person("aa"));
map.put("bb",new Person("bb"));
map.put("cc",new Person("cc"));
map.put("dd",new Person("dd"));
request.setAttribute("map", map);
%>
<c:forEach var="entry" items="${map }">
${ entry.key} :${entry.value.name}<br>
</c:forEach>
</body>
</html>
结果：
