<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'simple.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>  
  <body>
	<%
		Collection customers=new ArrayList();
		customers.add(new String("user1"));
		customers.add(new String("user2"));
		customers.add(new String("user3"));
		customers.add(new String("user4"));
		//设置customer为的request属性
		request.setAttribute("customers",customers);
	 %>
	 <h4>Customers in the request:</h4>
	 <c:set var="customer" scope="session" value="${requestScope.customers}"/>
	 <c:forEach var="customer" items="${customers}">
	 	<c:out value="${customer}"/><br/>
	 </c:forEach>
  </body>
</html>




<c:set>标签用于设置一个属性，可以把这个属性设置到Session中，也可以设置到Application中。<c:forEach>用于迭代Customers中的内容，<c:out>用于把一些计算器结果显示到客户端,输出到JspWriter流中。