Java で実装されたロボットの音声認識および対話テクノロジー

private String recognize(byte[] bytes) {        
        try {
            String result = "";
            String url = "http://api.xfyun.cn/v1/service/v1/iat";
            byte[] data = bytes;
            String curTime = System.currentTimeMillis() / 1000L + "";
            String param = "{"engine_type":"sms16k","aue":"raw"}";
            String paramBase64 = new String(Base64.getEncoder().encode(param.getBytes()));
            String checkSum = DigestUtils.md5Hex(base64ApiKey + curTime + paramBase64);
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
            //设置请求头
            conn.setRequestMethod("POST");
            conn.setRequestProperty("X-Appid", appId);
            conn.setRequestProperty("X-CurTime", curTime);
            conn.setRequestProperty("X-Param", paramBase64);
            conn.setRequestProperty("X-CheckSum", checkSum);
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
            conn.setDoOutput(true);
            conn.getOutputStream().write(data);
            // 打印请求结果
            if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = conn.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
                StringBuilder resultBuffer = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) {
                    resultBuffer.append(line);
                }
                result = resultBuffer.toString();
                reader.close();
            }
            return result;
        } catch (Exception e) {
            logger.error("Exception: {}", e);
        }
        return null;
}

public void speak(String text) {
    try {
        Token token = new Token(appKey, appSecret);
        String speechUrl = "http://api.changchun.igroups.cn/synth";

        String body = "{"s":"" + text + ""}";
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url(speechUrl)
                .post(RequestBody.create(MediaType.parse("application/json"), body.getBytes("UTF-8")))
                .addHeader("Authorization", token.getToken())
                .addHeader("Content-Type", "application/json")
                .addHeader("User-Agent", "Mozilla/5.0")
            .build();
        Response response = client.newCall(request).execute();
        if (response.isSuccessful()) {
            InputStream inputStream = response.body().byteStream();
            AdvancedPlayer player = new AdvancedPlayer(inputStream);
            player.play();
            inputStream.close();
        } else {
            logger.error("Response code: {}, message: {}", response.code(), response.message());
        }
    } catch (Exception e) {
        logger.error("Exception: {}", e);
    }
}