pageContext的一些属性

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<%@ page language="java" contentType="text/html;charset=gb2312" import="java.util.*" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>   </head>    <body><%pageContext.setAttribute("name","page_James");//page范围的namerequest.setAttribute("name","request_name");//request范围的namesession.setAttribute("name","session_James");//session范围的nameapplication.setAttribute("name","application_James");//application范围的name%><%//获取page范围name属性String pageString=(String)pageContext.getAttribute("name",PageContext.PAGE_SCOPE);//获取request范围name属性String requestString=(String)pageContext.getAttribute("name",PageContext.REQUEST_SCOPE);//获取session范围name属性String sessionSting=(String)pageContext.getAttribute("name",PageContext.SESSION_SCOPE);//获取application范围name属性String applicationString=(String)pageContext.getAttribute("name",PageContext.APPLICATION_SCOPE);%><%="page范围：name属性值"+pageString %><br><%="request范围：name属性值"+requestString %><br><%="session范围：name属性值"+sessionSting %><br><%="application范围：name属性值"+applicationString %><br>  </body></html>