qt tcp通信 心跳包 服务端代码示例
时间: 2023-09-12 20:03:05 浏览: 58
你好,关于qt tcp通信心跳包的服务端代码示例,可以参考以下代码:
```cpp
#include <QTcpServer>
#include <QTcpSocket>
// 定义心跳包内容
const QByteArray HEARTBEAT_PACKET = QByteArrayLiteral("Heartbeat Packet");
int main(int argc, char **argv) {
QCoreApplication app(argc, argv);
QTcpServer server;
if (!server.listen(QHostAddress::Any, 8888)) {
qFatal("Failed to start server!");
return -1;
}
QObject::connect(&server, &QTcpServer::newConnection, [&]{
QTcpSocket *socket = server.nextPendingConnection();
if (!socket) {
return;
}
// 添加心跳包定时器
QTimer *heartbeatTimer = new QTimer(socket);
QObject::connect(heartbeatTimer, &QTimer::timeout, [=]{
socket->write(HEARTBEAT_PACKET);
});
// 定义socket readyRead信号的槽函数
QObject::connect(socket, &QTcpSocket::readyRead, [=]{
while (socket->bytesAvailable() > 0) {
// 处理完整的心跳包
QByteArray packet = socket->read(HEARTBEAT_PACKET.size());
if (packet != HEARTBEAT_PACKET) {
continue;
}
// 重置定时器
heartbeatTimer->start();
}
});
});
return app.exec();
}
```
如果您有其它问题,欢迎随时提出。