用Python实现一个简单的多线程TCP服务器的教程
最近看《python核心编程》,书中实现了一个简单的1对1的TCPserver,但是在实际使用中1对1的形势明显是不行的,所以研究了一下如何在server端通过启动不同的线程(进程)来实现每个链接一个线程。
其实python在类的设计上已经考虑到了这一方面的需求,我们只要在自己的server上继承一下SocketServer.BaseRequestHandler就可以了。
server端代码如下:
#!/usr/bin/env python import SocketServer from time import ctime HOST = '' PORT = 21567 ADDR = (HOST, PORT) class MyRequestHandler(SocketServer.BaseRequestHandler): def handle(self): print '...connected from:', self.client_address while True: self.request.sendall('[%s] %s' % (ctime(),self.request.recv(1024))) tcpServ = SocketServer.ThreadingTCPServer(ADDR, MyRequestHandler) print 'waiting for connection...' tcpServ.serve_forever()
客户端代码如下(基本和书中一模一样,只是把循环中的关闭链接注释掉了):
#!/usr/bin/env python from socket import * HOST = 'localhost' PORT = 21567 BUFSIZ = 1024 ADDR = (HOST, PORT) while True: tcpCliSock = socket(AF_INET, SOCK_STREAM) tcpCliSock.connect(ADDR) data = raw_input('> ') if not data: break tcpCliSock.send('%s\r\n' % data) data = tcpCliSock.recv(BUFSIZ) if not data: break print data.strip() #tcpCliSock.close()
从客户端的代码可以看出,每次输入都会建立一次新的请求。
测试一下,启动server和client之后,在client中输入测试:

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