发送TTS语音消息

import cn.hutool.core.codec.Base64;
import cn.hutool.crypto.SecureUtil;
import cn.hutool.http.Header;
import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpResponse;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.ZoneId;

public void sendCode() {
    final String baseUrl = "https://api.itniotech.com/voice";
    final String apiKey = "your api key";
    final String apiPwd = "your api secret";
    final String appId = "{{appId}}";
    final String callee = "{{callee}}";
    final String displayNum = "{{displayNum}}";
    final String language = "{{language}}";
    final double speakingRate = "{{speakingRate}}";
    final Integer ssmlGender = "{{ssmlGender}}";
    final String accent = "{{accent}}";
    final String text = "{{text}}";
    final Integer loopCount = "{{loopCount}}";
    final String calledInfo = "{{calledInfo}}";
    final Integer recallCount = "{{recallCount}}";
    final Integer recallInterval = "{{recallInterval}}";
    final Integer maxDuration = "{{maxDuration}}";
    final Integer maxRingingTime = "{{maxRingingTime}}";

    final String url = baseUrl.concat("/sendCode");
    HttpRequest request = HttpRequest.post(url);

    // generate md5 key
    final String datetime = String.valueOf(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant().getEpochSecond());
    final String sign = SecureUtil.md5(apiKey.concat(apiPwd).concat(datetime));

    request.header(Header.CONTENT_TYPE, "application/json;charset=UTF-8")
            .header("Sign", sign)
            .header("Timestamp", datetime)
            .header("Api-Key", apiKey);

    final String body = JSONUtil.createObj()
            .set("callee", callee)
            .set("displayNum", displayNum)
            .set("language", language)
            .set("speakingRate", speakingRate)
            .set("ssmlGender", ssmlGender)
            .set("accent", accent)
            .set("text", text)
            .set("appId", appId)
            .set("loopCount", loopCount)
            .set("calledInfo", calledInfo)
            .set("recallCount", recallCount)
            .set("recallInterval", recallInterval)
            .set("maxDuration", maxDuration)
            .set("maxRingingTime", maxRingingTime)
            .toString();

    HttpResponse response = request.body(body).execute();
    if (response.isOk()) {
        String result = response.body();
        System.out.println(result);
    }
}