QT4实现Websocket通讯
时间: 2023-08-26 08:04:48 浏览: 99
要在QT4中实现Websocket通讯,可以使用第三方库QtWebSockets。以下是实现的步骤:
1. 下载并安装QtWebSockets库,可以在GitHub上获取源代码并编译安装。
2. 在QT项目中包含QtWebSockets库的头文件。例如:
```cpp
#include <QtWebSockets/QWebSocket>
#include <QtWebSockets/QWebSocketServer>
#include <QtWebSockets/QWebSocketCorsAuthenticator>
```
3. 创建一个QWebSocket对象,连接到Websocket服务器:
```cpp
QWebSocket *m_webSocket = new QWebSocket();
m_webSocket->open(QUrl("ws://example.com"));
```
4. 在QWebSocket对象中连接信号和槽,以便在收到消息时处理它们:
```cpp
connect(m_webSocket, &QWebSocket::connected, this, &MyClass::onConnected);
connect(m_webSocket, &QWebSocket::disconnected, this, &MyClass::onDisconnected);
connect(m_webSocket, &QWebSocket::textMessageReceived, this, &MyClass::onTextMessageReceived);
```
5. 实现信号和槽的处理函数:
```cpp
void MyClass::onConnected()
{
qDebug() << "WebSocket connected";
}
void MyClass::onDisconnected()
{
qDebug() << "WebSocket disconnected";
}
void MyClass::onTextMessageReceived(QString message)
{
qDebug() << "WebSocket message received: " << message;
}
```
6. 发送消息:
```cpp
m_webSocket->sendTextMessage("Hello, server!");
```
7. 关闭Websocket连接:
```cpp
m_webSocket->close();
```
这样就可以在QT4中实现Websocket通讯了。
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