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(1). forward()·½·¨
    ʹÓõ½javax.servlet.RequestDispatcherÀà
    RequestDispatcher rd = getServletContext().getRequestDispatcher("url");
    rd.forward(requestVar,requestVar); //´«µÝservletµÄÈë¿Ú²ÎÊý
    /*forwardº¯ÊýÒѾ­°ÑÔ­Ò³ÃæµÄrequest,response¶ÔÏó´«ÈëеÄÒ³Ãæ£¬Òò´ËÕâоÉÒ³ÃæÓµÓÐÏàͬµÄrequest,response¶ÔÏó¡£request.getparameter("var")¾Í¿ÉÒԵõ½ÏàÓ¦µÄÖµ.*/
    /*forward()ÊÇÖ±½ÓÔÚserver×öµÄ£¬ä¯ÀÀÆ÷²¢²»ÖªµÀ£¬Ò²²»ºÍä¯ÀÀÆ÷´ò½»µÀ£¬ä¯ÀÀÆ÷µÄµØÖ·²»±ä»¯¡£*/
    ¼´£º
    getServletContext().getRequestDispatcher("url").forward(requestVar,responseVar);
    ·þÎñÆ÷¶ËServlet½øÐÐתÏòµÄ4ÖÖ·½·¨£º
    1.ServletContextµÄgetRequestDispatcher()    
    2.ServletContextµÄgetNamedDispatcher()   
    3.ServletRequestµÄgetRequestDispatcher()   
    4.ServletResponseµÄsendredirect()½øÐÐתÏò¡£
    forward·½·¨£¬ÒòΪÕâЩÕâÑù±È½Ï¸ßЧ¡£Ö»ÓÐÔÚforward·½·¨²»ÄÜʹÓÃʱ£¬ÔÙʹÓÃservletresponseµÄsendredirect()·½·¨¡£
(2).response.sendRedirect(url);  
    ÆäʵÊÇÏòä¯ÀÀÆ÷·¢ËÍÒ»¸öÌØÊâµÄHeader£¬È»ºóÓÉä¯ÀÀÆ÷À´×öתÏò£¬×ªµ½Ö¸¶¨µÄÒ³Ãæ£¬ËùÒÔÓÃsendRedirectʱ£¬ä¯ÀÀÆ÷µÄµØÖ·À¸ÉÏ¿ÉÒÔ¿´µ½µØÖ·µÄ±ä»¯¡£ÐÂÒ³Ãæ²»ÄÜ´¦Àí¾ÉÒ³ÃæµÄpagecontext(request,response,...)¶ÔÏó.
    ÔÚresponse.sendRedirectÖ®ºó£¬Ó¦¸Ã½ô¸úÒ»¾äreturn;
(3).HTMLÓïÑÔµÄ×Ô¶¯Ìø×ª
    <html>
    <head>
        <meta http-equiv="refresh" content="0;url="http://www.baidu.com">
        0Êǵȴýʱ¼ä£¬Èç¹ûÉèÖÃΪ5±íʾµÈ´ý5sºó¿ªÊ¼Ìø×ª
    </head>
    …………
(4).JavaScriptÌø×ª
A:    <script languate="javascript">
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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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ͨ¹ýjsp(SUNÆóÒµ¼¶Ó¦ÓõÄÊ×Ñ¡)³ÌÐò»ñµÃdatabaseÀïµÄÊý¾Ý£¬È»ºóͨ¹ý³ÌÐò¿ØÖÆÆäÏÔʾ·½Ê½£¬ÕâÖÖ·½Ê½Ã÷ÏÔȱµãÊÇÈç¹ûÊý¾ÝÁ¿±È½Ï´óµÄʱºò»áÓÐÃ÷ÏÔµÄÐÔÄÜϽµ
    ÏÖ½«²âÊÔ´úÂë·îÉÏ£¬¾¡¹ÜÎÒ¾¡Á¿ÏÞÖÆ´úÂëµÄ³¤¶È
    ÏÈ˵Ï¿ª·¢²½Ö裻DB½Å±¾£¬²âÊÔ»ñµÃµÄÊý¾ÝÊÇ·ñÕýÈ·µÄÏÔʾÔÚÒ»¸ötableÖУ¬Ìí¼ÓÄÇ ......

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<%String sConn="ÄãµÄÁ¬½Ó"
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn=DriverManager.getConnection(sConn,"ÄãµÄÓû§Ãû","ÃÜÂë");
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
Statement stmtcount=conn.createStat ......

jsp ¹Ø±Õ´°¿Ú´¥·¢µÄʼþ

<script language="javascript">
function window.onunload(){
//ËùÓд°¿Ú¹Ø±Õ
  if((window.screenLeft>=10000 && window.screenTop>=10000) || event.altKey)
  { //µã»÷ÓÒÉϽǵĴ°¿Ú¹Ø±Õ
    alert("aaaaaaaaaaaaaaaaaa");   
  }
}
</s ......

JSPÌø×ªµÄ¼¸ÖÖ·½Ê½|Struts¶¯Ì¬Ìø×ª

String url="http://www.baidu.com";
   ActionForward gotourl = new ActionForward(url);
   gotourl.setPath(url);
   gotourl.setRedirect(true);
   return gotourl;
  1.RequestDispatcher.forward()
¡¡¡¡ ÊÇÔÚ·þÎñÆ÷¶ËÆð×÷ÓÃ,µ±Ê¹ÓÃforward()ʱ,Servlet engine´ ......
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