<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title> </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">
</head>
<body>
<%
String currentvar ="currentvar";
pageContext.setAttribute("pageContextvar", "pageContextvar");
request.setAttribute("requestvar", "requestvar");
session.setAttribute("sessionvar", "sesstionvar");
application.setAttribute("applicationvar", "applicationvar");
pageContext.setAttribute("var","pageContext/var");
request.setAttribute("var", "request/var");
%>
<c:set var="setvar" value="setvar" />
<h3> :</h3>
<%=pageContext.getAttribute("var") %>
<br/>
<%=request.getAttribute("var")%>
<jsp:useBean id="person" class="home.Person" scope="page">
<jsp:setProperty name="person" property="id" value="064109003" />
<jsp:setProperty name="person" property="name" value="boy" />
</jsp:useBean>
<br/>--------------------------<br/>
<c:out value="${applicationvar}"/>
<br/>
userBean
<%=person.getId() %>
<c:out value="${person.getId()}"></c:out>
</body>
</html>
<%--
Scope
1. jsp
<%=currentvar%>
<%out.println(currentvar)%>
<c:out /> ， ， pageContext scope
2. pageContext ( scope pageContext )
<%=pageContext.getAttribute("pageContextvar")%>
<%out.println(pageContext.getAttribute("pageContext"))%>
<c:out value="pageContextvar" /> pageContext ，
3. userBean
<%=person.getId()%> or <%out.println(person.getId())%>
<c:out>
<c:out value="${person.getId()}" />
--%>