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<script language="javascript">
function window.onunload(){
//ËùÓд°¿Ú¹Ø±Õ
  if((window.screenLeft>=10000 && window.screenTop>=10000) || event.altKey)
  { //µã»÷ÓÒÉϽǵĴ°¿Ú¹Ø±Õ
    alert("aaaaaaaaaaaaaaaaaa");   
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jsp         url          ${param.serialID}
action    jsp          String commentId = ServletActionContext.getRequest().getParameter("commentId");
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jsp visit spring


<%@page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="org.springframework.context.ApplicationContext"%>
<%@page import="org.springframework.web.context.support.WebApplicationContextUtils"%>
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        v512_servlet+jsp
01 ÔÚÐÞ¸ÄÍêCookieºó,Ò»¶¨Òª¼ÓÉÏresponse.addCookie(c);
   CookieÖÐÖ»Äܱ£´æ×Öĸ»òÊý×ÖÐÅÏ¢;
02 req.getSession()Óëreq.getSession(boolean create)
   ÎÞ²ÎÊýµÄ == ÓвÎÊýµÄ²ÎÊýÎ ......

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package com.filter;
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