从具有Java地址和端口号的服务器获取状态代码

Question

我能够使用Socket类完成此操作。但是我希望得到HttpUrlConnection提供的内容。

现在我正在做以下事情：

public void checkServerStatus(String IP_ADDRESS, int PORT, String SERVER_NAME) {

        try(Socket s = new Socket(IP_ADDRESS, PORT)) {

            System.out.println("Connection good on "+SERVER_NAME);

        } catch (IOException ex) {
            System.out.println("There was an IO error "+ ex);
        }catch(SecurityException ex) {
            System.out.println("There was an security error "+ ex);
        } catch (IllegalArgumentException ex){
            System.out.println("There was an IllegalArgumentException "+ ex);
        }
    }

但是我想做点什么：

public static String getStatus(String url) throws IOException {

        String result = "";
        try {
            URL siteURL = new URL(url);
            HttpURLConnection connection = (HttpURLConnection) siteURL.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();

            int code = connection.getResponseCode();
            if (code == 200) {
                result = "Green";
            }
        } catch (Exception e) {
            result = "->Red<-";
        }
        return result;
    }

但是只有IP地址和我要检查的端口。

阅读URL API后，我无法做到这一点，HttpUrlConnection依赖于URL。

我正在尝试创建服务器运行状况类型的程序，如果出现问题则返回代码。