java获取硬盘序列号和cpuID和MAC地址

    // 获取硬盘序列号
    private static String getWindowsSerialNumber() {
        String result = "";
        try {
            Process process = Runtime.getRuntime().exec(new String[] { "wmic", "diskdrive", "get", "serialnumber" });
            process.getOutputStream().close();
            Scanner scanner = new Scanner(process.getInputStream());
            scanner.next();
            result = scanner.next();
            scanner.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

    //获取cpuId
    private  static  String getCpuInfo(){
        String cpuId="";
        try {
            Process process = Runtime.getRuntime().exec("wmic cpu get ProcessorID");
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                if (!line.trim().isEmpty()) {
                    cpuId=line.trim();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return cpuId;
    }

  // 获取 MAC 地址
    private static String getMacAddress() {
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
            StringBuilder macAddress = new StringBuilder();
            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface networkInterface = networkInterfaces.nextElement();
                byte[] mac = networkInterface.getHardwareAddress();
                if (mac != null) {
                    for (int i = 0; i < mac.length; i++) {
                        macAddress.append(String.format("%02X", mac[i]));
                        if (i < mac.length - 1) {
                            macAddress.append("-");
                        }
                    }
                    break; // 只获取第一个非空的 MAC 地址
                }
            }
            return macAddress.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null; // 获取失败时返回空字符串
        }
    }