< 
   %@page contentType="text/html;charset=GB2312"%> 
   
<% 
   
  int counter = 0; 
   
  //得到所有的Cookie 
   
  //与其它内置对象不同，Cookie首字母大写 
   
  Cookie cookies[] = request.getCookies(); 
   
  //request对象获取Cookie 
   
  if (cookies != null) { 
   
    for (int i = 0; i < cookies.length; i++) { 
   
      if (cookies[i].getName().equals("counter")) 
   
        counter = Integer.parseInt(cookies[i].getValue()) + 1; 
   
    } 
   
  } 
   
  // 首次登陆，需要创建Cookie ； 以后登陆，需更新Cookie 
   
  Cookie c = new Cookie("counter", "" + counter); 
   
  c.setMaxAge(60 * 60 * 24 * 365); //设置Cookie有效期 
   
  response.addCookie(c); 
   
  //response对象添加Cookie 
   
%> 
   
<html> 
   
  <head> 
   
    <title>    </title> 
   
  </head> 
   
  <body bgcolor="#FFFFFF"> 
   
  <% 
   
    if (counter == 0) 
   
      out.println("First!Welcome!"); 
   
    else 
   
      out.println(counter + " times!"); 
   
  %> 
   
  </body> 
   
</html>