Qt翻译api封装

static QByteArray createSign(const QByteArray &text, const QByteArray &appid, const QByteArray &key, const QByteArray &salt)
{
    return QCryptographicHash::hash(appid+text+salt+key, QCryptographicHash::Md5).toHex();
}

QByteArray appid = "389283589"; 
QByteArray key   = "12345678"; // 密钥
QByteArray text  = "apple";   // 需要翻译的文本
QByteArray salt  = QByteArray::number(QDateTime::currentSecsSinceEpoch());
QByteArray sign  = createSign(text, appid, key, salt);

static HttpClient client;
client.get("http://api.fanyi.baidu.com/api/trans/vip/translate")
      .queryParam("from",  "en") // 英文类型
      .queryParam("to",    "zh") // 翻译中文
      .queryParam("q",     text)
      .queryParam("appid", appid)
      .queryParam("salt",  salt)
      .queryParam("sign",  sign)
      .onSuccess([](QJsonObject result) { qDebug().noquote()<<result; })
      .onFailed([](QByteArray error) { qDebug()<<error; })
      .exec();
// 输出打印：
// QJsonObject({"from":"en","to":"zh","trans_result":[{"dst":"苹果","src":"apple"}]})