获得客户端IP

每个人都可爱

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http://fendechen.blogbus.com/logs/24955413.html



String IP = httpRequest.getHeader("x-forworded-for");
  if (IP != null && IP.length() != 0) {
   while ((IP != null) && (IP.equals("unknow"))) {

    IP = httpRequest.getHeader("x-forworded-for");
   }
  }

  if (IP == null || IP.length() == 0) {
   IP = httpRequest.getHeader("Proxy-Client-IP");
  }

  if (IP == null || IP.length() == 0) {
   IP = httpRequest.getHeader("WL-Proxy-Client-IP");
  }

  if (IP == null || IP.length() == 0) {
   IP = httpRequest.getRemoteAddr();
  }
  // 得到访问者所在网段
String  subIP = IP.substring(0, IP.lastIndexOf("."));
  
  System.out.println("真实的IP地址：" + IP+"网段是："+subIP);