qt的QWebSocketServer 如何使用wss ,请写出相关服务端和客户端代码

要使用wss，需要使用Qt的QSslSocket和QSslKey等相关类来实现SSL/TLS协议，以下是一个简单的使用QWebSocketServer实现wss的示例代码：

服务端代码：

#include <QtCore/QCoreApplication>
#include <QtWebSockets/QWebSocketServer>
#include <QtWebSockets/QWebSocket>
#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtNetwork/QSslSocket>
#include <QtNetwork/QSslKey>
#include <QtNetwork/QSslCertificate>

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

    QWebSocketServer server(QStringLiteral("WebSocket Server"), QWebSocketServer::SecureMode);

    QSslConfiguration sslConfiguration;
    QFile certFile(QStringLiteral("/path/to/cert.pem"));
    QFile keyFile(QStringLiteral("/path/to/privkey.pem"));
    certFile.open(QIODevice::ReadOnly);
    keyFile.open(QIODevice::ReadOnly);
    QSslCertificate sslCertificate(&certFile, QSsl::Pem);
    QSslKey sslKey(&keyFile, QSsl::Rsa, QSsl::Pem);
    sslConfiguration.setLocalCertificate(sslCertificate);
    sslConfiguration.setPrivateKey(sslKey);
    server.setSslConfiguration(sslConfiguration);

    if (!server.listen(QHostAddress::Any, 12345)) {
        qWarning() << "Failed to listen:" << server.errorString();
        return -1;
    }

    QObject::connect(&server, &QWebSocketServer::newConnection, [&server]() {
        QWebSocket *socket = server.nextPendingConnection();
        qDebug() << "New connection:" << socket->peerAddress().toString();
        socket->sendTextMessage(QStringLiteral("Hello, client!"));
        socket->close();
    });

    qDebug() << "Server started:" << server.serverUrl();
    return a.exec();
}

客户端代码：

#include <QtCore/QCoreApplication>
#include <QtWebSockets/QWebSocket>
#include <QtCore/QDebug>
#include <QtCore/QUrl>

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

    QWebSocket socket;
    socket.setSslConfiguration(QSslConfiguration::defaultConfiguration());
    socket.open(QUrl(QStringLiteral("wss://localhost:12345")));

    QObject::connect(&socket, &QWebSocket::connected, [&socket]() {
        qDebug() << "Connected to server:" << socket.peerAddress().toString();
    });

    QObject::connect(&socket, &QWebSocket::textMessageReceived, [&socket](const QString &message) {
        qDebug() << "Received message:" << message;
        socket.close();
    });

    return a.exec();
}

注意事项：

- 需要提供证书和私钥文件，可以通过Let's Encrypt等工具获得免费的SSL证书。
- 客户端需要设置SslConfiguration，使用默认配置即可。
- 以上示例代码仅供参考，实际使用时需要根据具体业务需求进行修改。