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JSPÓï·¨£º<%-- ÄÚÈÝ --%>
XMLÓï·¨£ºÎÞ
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JSPÓï·¨:<%! declaration;[declaration;]+... %>
ÀýÈ磺
<%!
   int i=0;int a,b,c;
   Color red=new Color(255,0,0);
   private static final String OK="ok";
   public String getAnswer(){
       return OK;
   }
%>
XMLÓï·¨£º
<jsp:declaration>
    declartion;[declaration;]+...
</jsp:declaration>
ÀýÈ磺
<jsp:declaration>
   int i=0;int a,b,c;
   Color red=new Color(255,0,0);
   private static final String OK="ok";
   public String getAnswer(){
       return OK;
   }
</jsp:declaration>
3£¬±í´ïʽ
JSPÓï·¨£º<%=expression%>
ÀýÈ磺
<%=Math.round(Math.random*100)%>
XMLÓï·¨£º
<jsp:expression>
   expression
</jsp:expression>
ÀýÈ磺
<jsp:expression>
   Math.round(Math.random*100)
</jsp:expression>
4£¬´úÂëÆ¬¶Ï
JSPÓï·¨£º<% your java code %>
ÀýÈ磺
<%
   String username=request.getParameter("username").trim();
   String password=request.getParameter("password").trim();
%>
XMlÓï·¨£º
<jsp:scriptlet>
   your java code
</jsp:scriptlet>
ÀýÈ磺
<jsp:scriptlet>
   String username=request.getParameter("username").trim();
   String password=request.getParameter("password").trim();
</jsp:scriptlet>
5£¬Ö¸Áinclude
JSPÓï·¨£º<%@include file="relativeURL"%>
ÀýÈ磺<%@include file="static_head.html"%>
XMLÓï·¨£º<jsp:directive.include file="relativeURL"/>
ÀýÈ磺<jsp:directive.include file="static_head.html"/>
6£¬Ö¸Ápage
JSPÓï·¨£º<%@page attribtes%>
ÀýÈ磺<%@page import="java.util.HashMap"%>
XMLÓï·¨£


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            URL url = new URL("http://www.163.com");
            InputStream is = url.openStream();
            byte[] buffer = new byte[1024];
           ......

JSPÎļþ

<%@ page language="java" import="kg.TestBean2;" %>
<%@ page contentType="text/html;charset=gb2312" %>
<html>
<head>
<title>HelloBean</title>
</head>
<body>
<%--
<%
kg.TestBean2 testbean=(kg.TestBean2)session.setAttribute("testbean");
if ......

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