QT 读取Json 配置文件

{

    QString ProjectPath = "";

    QString ConfigPath = ".json";

    const char* PathEnvVar = getenv("");

    if (PathEnvVar != nullptr) {

        ProjectPath = PathEnvVar;

        ConfigPath = ProjectPath + "/.json";

    }

    if (!QFile::exists(ConfigPath)) {

        qCritical()<< __func__ << " NOT EXIST!";

    }

    QFile ConfigFile(ConfigPath);

    QString jsonContent;

    // Open ConfigFile File

    if (ConfigFile.open(QIODevice::ReadOnly | QIODevice::Text)) {

        // Read JSON Content

        jsonContent = ConfigFile.readAll();

        // Close ConfigFile File

        ConfigFile.close();

    } else {

        qCritical()<< __func__ << " ConfigFile Not Open";

    }

    QJsonParseError err_rpt;

    QJsonDocument  root_Doc = QJsonDocument::fromJson(jsonContent.toUtf8(), &err_rpt);

    if(err_rpt.error != QJsonParseError::NoError)

    {

        qDebug() <<__func__<< "JSON error";

    }

    else

    {

        QJsonObject root_Obj = root_Doc.object();

        QJsonValue result_Value = root_Obj.value("results");

        if(result_Value.isArray())

        {

            QJsonObject result_Obj = result_Value.toArray().at(0).toObject();

            for(QJsonObject::iterator it = result_Obj.begin(); it != result_Obj.end(); it++)

            {

                if(it.key() == "" || it.key() == "")

                {

                    continue;

                }

                else{

                    QJsonObject warningKey = result_Obj.value(it.key()).toObject();

                    int Id = warningKey.value("id").toString().toInt(nullptr,16);

                    QString Title = warningKey.value("title").toString();

                }

            }

            qDebug() << " " ;

        }

    }

}