获取本机iP,该如何处理_Java Web开发

获取本机iP
在项目中，我要做一个考勤模块，需要保存本机的iP到数据库，请问如何获取到ip，使用js脚本可以获取到吗

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百度一下很多
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Java code

        String ip = request.getHeader("x-forwarded-for");        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))        {            ip = request.getHeader("Proxy-Client-IP");        }        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))        {            ip = request.getHeader("WL-Proxy-Client-IP");        }        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))        {            ip = request.getRemoteAddr();        }
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Java codepublic static String getRealIp() throws SocketException {        String localip = null;// 本地IP，如果没有配置外网IP则返回它        String netip = null;// 外网IP        Enumeration<NetworkInterface> netInterfaces =        NetworkInterface.getNetworkInterfaces();        InetAddress ip = null;        boolean finded = false;// 是否找到外网IP        while (netInterfaces.hasMoreElements() && !finded) {            NetworkInterface ni = netInterfaces.nextElement();            Enumeration<InetAddress> address = ni.getInetAddresses();            while (address.hasMoreElements()) {                ip = address.nextElement();                if (!ip.isSiteLocalAddress()                && !ip.isLoopbackAddress()                && ip.getHostAddress().indexOf(":") == -1) {// 外网IP                    netip = ip.getHostAddress();                    finded = true;                    break;                } else if (ip.isSiteLocalAddress()                && !ip.isLoopbackAddress()                && ip.getHostAddress().indexOf(":") == -1) {// 内网IP                    localip = ip.getHostAddress();                }            }        }        if (netip != null && !"".equals(netip)) {            return netip;        } else {            return localip;        }    }
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>JavaScript获取客户端IP</title>
</head>
  
<body>
<script type="text/javascript" language="javascript">
<!--
function GetLocalIPAddress()
{
    var obj = null;
    var rslt = "";
    try
    {
        obj = new ActiveXObject("rcbdyctl.Setting");
        rslt = obj.GetIPAddress;
        obj = null;
    }
    catch(e)
    {
        //异常发生
    }
   
   return rslt;
}
  
document.write("你的IP是：" + GetLocalIPAddress());
//-->
</script>
</body>
</html>