QTcpServer类

最新推荐文章于 2025-04-12 17:51:37 发布

潇湘李某

最新推荐文章于 2025-04-12 17:51:37 发布

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分类专栏： qt5 文章标签： qt

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This class makes it possible to accept incoming TCP connections. You can specify the port or have QTcpServer pick one automatically. You can listen on a specific address or on all the machine’s addresses.

Call listen() to have the server listen for incoming connections. The newConnection() signal is then emitted each time a client connects to the server.

Call nextPendingConnection() to accept the pending connection as a connected QTcpSocket. The function returns a pointer to a QTcpSocket in QAbstractSocket::ConnectedState that you can use for communicating with the client.

If an error occurs, serverError() returns the type of error, and errorString() can be called to get a human readable description of what happened.

When listening for connections, the address and port on which the server is listening are available as serverAddress() and serverPort().

Calling close() makes QTcpServer stop listening for incoming connections.

Although QTcpServer is mostly designed for use with an event loop, it’s possible to use it without one. In that case, you must use waitForNewConnection(), which blocks until either a connection is available or a timeout expires.

(一）public functions
1.QTcpServer(QObject *parent = Q_NULLPTR)

2.virtual ~QTcpServer()

3.void close()

4.QString errorString() const

5.virtual bool hasPendingConnections() const

6.bool isListening() const

7.bool listen(const QHostAddress &address = QHostAddress::Any, quint16 port = 0)

8.int **maxPending**Connections() const

9.virtual QTcpSocket * **nextPending**Connection()

10.void pauseAccepting()

11.QNetworkProxy proxy() const

12.void resumeAccepting()