使用Cookie记录访问数

 public void doPost(HttpServletRequest request, HttpServletResponse response)      throws ServletException, IOException {  
         response.setContentType("text/html;charset=gb2312"); 
         PrintWriter out = response.getWriter();          
out .println("");          
out.println("");       
   out.println(" ");   
       out.println(" ");  
         Cookie[] cookies = request.getCookies();  
         int count = 0;        
  boolean bool=true;          
Cookie cookie=null;  
         if (cookies != null) { 
             for (int i = 0; i < cookies.length; i++) {                  
cookie = cookies[i];  
                 if ("accpCount".equals(cookie.getName())) {             
         count = Integer.parseInt(cookie.getValue())+1;           
           cookie.setValue(count+"");                    
  cookie.setMaxAge(60*60*24);                     
 response.addCookie(cookie); 
                     out.println("你是第" + count + "次登录该网页。");  
                    bool=false;                   
  break;                  
 }          
     }      
        }          
    if(bool){ 
                 out.println("你是第 1 次登录该网页。在此之前没有相关Cookie信息。");               
   cookie=new Cookie("accpCount", "1");        
          cookie.setMaxAge(60*60*24);        
          response.addCookie(cookie);      
        }  
             out.println(" ");   
           out.println("");     
         out.flush();           
   out.close();       
  }