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                        /JAVA遇見HTML——JSP篇

兩個頁面創建的ID不一樣，怎么回事？

session:

%@ page language="java" import="java.text.*"? import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
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>My JSP 'session.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">
?? ?

? </head>
?
? <body>
? <h1>csession內置對象</h1>
??? <%? session.setAttribute("user_name","jinyubao");
??????? SimpleDateFormat s=new SimpleDateFormat("yyyy-MM-dd hh:ss:mm");
??????? Date? d=new Date(session.getCreationTime());
???? %>
???? 創建時間：<%=s.format(d) %>
???? 創建ID:<%=session.getId() %>
???? 用戶名：<%=session.getAttribute("user_name")%>
???? <br>
???? <a? href="session1.jsp"?? target="_blank">跳轉到session1頁面</a>
??? ?
??? <br>
? </body>
</html>

session1:

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
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>My JSP 'session.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">
?? ?

? </head>
?
? <body>
???? 創建ID:<%=session.getId()%><br>
???? 用戶名：<%=session.getAttribute("user_name")%>
??? hello world<br>
? </body>
</html>