如何签署HttpGet请求？

Question

我一直感谢你们所有人。

我想通过Binance API查看我的帐户状态

（https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#account-information-user_data） （请参阅“帐户信息（USER_DATA）”部分）

我知道如何发送纯HTTPGet请求，但不知道如何对其进行签名。

我的代码如下

    public static void wallet_status () throws NoSuchAlgorithmException, InvalidKeyException {
    //GET /api/v3/account (HMAC SHA256)

    String url = "https://api.binance.com/api/v3/account";

    //sign url
    Mac shaMac = Mac.getInstance("HmacSHA256");
    SecretKeySpec keySpec = new SecretKeySpec(BINANCE_SECRET_KEY.getBytes(), "HmacSHA256");
    shaMac.init(keySpec);       
    final byte[] macData = shaMac.doFinal(url.getBytes());
    String sign = Hex.encodeHexString(macData);

    HttpClient client = HttpClientBuilder.create().build();
    HttpGet request = new HttpGet("https://api.binance.com/api/v3/account");
    request.addHeader("timestamp", nonce);

    try {
        HttpResponse response = client.execute(request);
        HttpEntity entity = response.getEntity();

        if (entity != null) {
            try (InputStream stream = entity.getContent()) {
                BufferedReader reader =
                        new BufferedReader(new InputStreamReader(stream));
                String line;
                while ((line = reader.readLine()) != null) {
                      System.out.println(line);
                }
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

}

我知道这部分应该修改

HttpGet request = new HttpGet("https://api.binance.com/api/v3/account");

请帮助。