📄 collections.jsp
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<%@ page contentType="text/html;charset=GBk" import="java.util.*"%>
<HTML>
<HEAD>
<TITLE>EL访问集合</TITLE>
</HEAD>
<BODY>
<% //定义数组
String[] firstNames = { "龙", "萍", "杨" };
//定义List
ArrayList lastNames = new ArrayList();
lastNames.add("陈");
lastNames.add("邓");
lastNames.add("于");
//定义Map
HashMap roleNames = new HashMap();
roleNames.put("volunteer", "志愿者");
roleNames.put("missionary", "工作人员");
roleNames.put("athlete", "运动员");
//使用request对象保留上面的定义
request.setAttribute("first", firstNames);
request.setAttribute("last", lastNames);
request.setAttribute("role", roleNames);
%>
<h2>EL访问集合</h2>
<UL>
<LI>${last[0]}${first[0]}: ${role["volunteer"]}
<LI>${last[1]}${first[1]}: ${role["athlete"]}
<LI>${last[2]}${first[2]}: ${role["missionary"]}
</UL>
</BODY></HTML>
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