Qt QJson解析json数据

Qt QJson解析json数据

//加载根目录文件

void TeslaManageData::loadRootFolderFiles()

{

    QNetworkAccessManager *manager = new QNetworkAccessManager(this);;

    QNetworkRequest network_request;

    QByteArray post_data;

    network_request.setUrl(QUrl("http://121.60.49.57:9080/tsinghuaVCService/init/selectAllFolder.action"));

    network_request.setHeader(QNetworkRequest::UserAgentHeader, "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 UBrowser/6.2.4098.3 Safari/537.36");

    connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));

    //发送请求

    manager->get(network_request);

}

void TeslaManageData::replyFinished(QNetworkReply* networkReply)

{

    QTextCodec *codec = QTextCodec::codecForName("utf8");

    QByteArray allData = networkReply->readAll();

    //使用utf8编码，这样才可以显示中文

    QString all = codec->toUnicode(allData);

    QJsonParseError jsonError;

    QJsonDocument doucment = QJsonDocument::fromJson(allData, &jsonError);  // 转化为 JSON 文档

    if (!doucment.isNull() && (jsonError.error == QJsonParseError::NoError)) {  // 解析未发生错误

        QJsonArray jsonArray1 = doucment.array();

        QJsonArray::Iterator iter1;

        for (iter1 = jsonArray1.begin();iter1 != jsonArray1.end();++iter1)

        {

            QJsonObject jsonObject1 = (*iter1).toObject();

            parseJsonObjectI(jsonObject1);

        }

    }

    networkReply->deleteLater();

}