java 获取本机外网IP

发起HTTP请求获取IP的网站然后用正则过滤出IP地址
发起HTTP请求并不是100%成功 来个死循环直到拿到IP为止

 public int getServerPort() {
        return serverPort;
    }

    private int serverPort;

    public String getUrl() {
        InetAddress address = null;
        try {
            address = InetAddress.getLocalHost();
        } catch (Exception e) {
            e.printStackTrace();
        }
        String v4IP = "";
        while (StrUtil.isBlank(v4IP)){
            v4IP = getV4IP();
        }

        return "http://"+v4IP+":"+this.serverPort;
    }

    public String getHost() {
        InetAddress address = null;
        try {
            address = InetAddress.getLocalHost();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return address.getHostAddress();
    }

    @Override
    public void onApplicationEvent(WebServerInitializedEvent event) {
        serverPort = event.getWebServer().getPort();
    }

  public static String getV4IP(){
        String ip = "";
        String url = "https://api.live.bilibili.com/client/v1/Ip/getInfoNew";
        Request request = new Request.Builder().url(url).build();
        Response response = null;
        try {
            response = client.newCall(request).execute();
            if(ObjectUtil.isNotNull(response)){
                String data =  response.body().string();
                Object succesResponse = JSON.parse(data);
                ip = JsonUtils.getValueByKey(succesResponse, "addr").toString();
            }
        } catch (Exception e) {
            System.err.println(e);
            ip="";
        }
        return ip;
    }