Pyqt如何通过QThread类来创建多线程并进行后台TCP的监听和实时处理网络请求
时间: 2024-05-03 07:20:41 浏览: 133
可以通过以下代码来创建多线程并进行后台TCP的监听和实时处理网络请求:
```python
import sys
import socket
from PyQt5.QtCore import QThread, pyqtSignal
from PyQt5.QtWidgets import QApplication, QWidget
class TcpThread(QThread):
received = pyqtSignal(str)
def __init__(self, host, port):
super(TcpThread, self).__init__()
self.host = host
self.port = port
self.socket = None
def run(self):
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.bind((self.host, self.port))
self.socket.listen(1)
while True:
connection, address = self.socket.accept()
data = connection.recv(1024).decode()
if not data:
break
self.received.emit(data)
connection.sendall(data.encode())
self.socket.close()
class Widget(QWidget):
def __init__(self):
super(Widget, self).__init__()
self.tcp_thread = TcpThread('127.0.0.1', 1234)
self.tcp_thread.received.connect(self.on_received)
self.tcp_thread.start()
def on_received(self, data):
print(data)
if __name__ == '__main__':
app = QApplication(sys.argv)
widget = Widget()
widget.show()
sys.exit(app.exec_())
```
在上面的代码中,我们定义了一个TcpThread类,它继承自QThread,用于后台监听TCP连接并实时处理网络请求。TcpThread类有一个received信号,用于将接收到的数据发送给外部。其中run方法用于处理TCP连接,当有连接进来时,会通过received信号将接收到的数据发送给外部,并将该数据发送回客户端。最后,我们在Widget类中创建TcpThread实例,并连接received信号到一个槽函数,用于处理接收到的数据。启动应用程序后,TcpThread会在后台监听TCP连接,并实时处理网络请求。
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