code100.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>获取requestScope范围的数据</title>
</head>
<body>
<%
request.setAttribute("userName", "tom");
%>
${requestScope.userName}
<%
session.setAttribute("manager", "lucy");
%>
${sessionScope.manager}
<%
application.setAttribute("message", "欢迎来到聊天室");
%>
${applicationScope.message}
</body>
</html>
