简单的网站页面计数器（防刷新，用txt文件保存）

26 //判断cookie,第一次登陆时加1,刷新时不累计计数

27 else if (request.getHeader("Cookie")==null)

28     { writeStr = Integer.parseInt(readStr)+1;}

29 else

30     { writeStr = Integer.parseInt(readStr);}

31

32 //写入时控制因为刷新引起的重复计数

33 if (request.getHeader("Cookie")==null)

34     {

35         try {

36                 PrintWriter pw = new PrintWriter(new FileOutputStream(nameOfTextFile));

37                 pw.println(writeStr);

38                 pw.close();}

39         catch(IOException e) {

40                     out.println(e.getMessage());}

41     }