Qt中实现Http服务接收POST请求

#include <QtNetwork>
#include <QTcpServer>
#include <QTcpSocket>
#include <QTextStream>

class HttpServer : public QTcpServer
{
    Q_OBJECT

public:
    explicit HttpServer(QObject *parent = nullptr) : QTcpServer(parent) {}

protected:
    void incomingConnection(qintptr socketDescriptor) override
    {
        QTcpSocket *socket = new QTcpSocket(this);
        socket->setSocketDescriptor(socketDescriptor);

        connect(socket, &QTcpSocket::readyRead, this, &HttpServer::socketReadyRead);
        connect(socket, &QTcpSocket::disconnected, this, &HttpServer::socketDisconnected);
    }

private slots:
    void socketReadyRead()
    {
        QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
        if (socket)
        {
            // Read the request from the socket
            QByteArray requestData = socket->readAll();

            // Parse the request
            // In this example, we assume the request is in plain text format
            QString request = QString::fromUtf8(requestData);

            // Check if it's a POST request
            if (request.startsWith("POST"))
            {
                // Extract the POST data
                QString postData = request.split("\r\n\r\n").last();

                // Process the POST data
                processPostData(postData);

                // Send a response back to the client
                QString response = "HTTP/1.1 200 OK\r\n"
                                   "Content-Type: text/plain\r\n"
                                   "\r\n"
                                   "POST data received!";
                socket->write(response.toUtf8());
                socket->flush();
                socket->waitForBytesWritten();
            }

            socket->close();
        }
    }

    void socketDisconnected()
    {
        QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
        if (socket)
        {
            socket->deleteLater();
        }
    }

private:
    void processPostData(const QString &postData)
    {
        // Process the POST data here
        qDebug() << "POST data received:" << postData;
    }
};

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

    HttpServer server;
    if (!server.listen(QHostAddress::Any, 8080))
    {
        qDebug() << "Failed to start server.";
        return 1;
    }

    qDebug() << "Server started on port 8080.";

    return app.exec();
}

#include "main.moc"