Qt/C++ get Json请求

#include <QCoreApplication>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    // 创建QNetworkAccessManager对象
    QNetworkAccessManager manager;

    // 发送GET请求
    QNetworkReply *reply = manager.get(QNetworkRequest(QUrl("http://example.com/api/data")));

    // 响应数据接收完成时触发finished信号
    QObject::connect(reply, &QNetworkReply::finished, [&]() {
        // 读取响应数据
        QByteArray responseData = reply->readAll();

        // 解析JSON数据
        QJsonDocument jsonDoc = QJsonDocument::fromJson(responseData);
        if (!jsonDoc.isNull()) {
            if (jsonDoc.isObject()) {
                QJsonObject jsonObj = jsonDoc.object();
                // 处理JSON对象数据
            } else if (jsonDoc.isArray()) {
                QJsonArray jsonArray = jsonDoc.array();
                // 处理JSON数组数据
            }
        }

        // 释放资源
        reply->deleteLater();
        a.quit();
    });

    return a.exec();
}