python 客户端点对点通信小案例

点对点通讯分为客户端和服务器，多个客户端通过服务器进行信息的交流

服务器端代码  service端

 #!/usr/bin/env python
 # -*- coding:utf-8 -*-

 import SocketServer
 import subprocess

 ##  代号 地址和端口 连接对象
 class myconn(object):   ##存放连接
     listconn = {}  ##  地址端口  连接对象
     # codeflage = {}  ##  代号   地址端号

 class MyServer(SocketServer.BaseRequestHandler):

     def setup(self):
         myconn.listconn[self.client_address] = self.request
         pass

     def handle(self):
         print("got connection from",self.client_address)
         while True:
             conn = self.request
             data = conn.recv(1024)
             if not data:
                 break
             print data

             #如果目标客户端在发送数据给目标客服端
             # 这里可以根据对方的ip和端口号来查找 我这里直接发给每一个用户了
             print len(myconn.listconn)
             if len(myconn.listconn) > 1:
                 for i in myconn.listconn.keys():
                     if self.client_address != i:
                         myconn.listconn[i].sendall(data)
                 pass
             else: ##不再      则发送数据给客户端
                 conn.sendall(data)
                 pass
             conn.sendall(data)

     def finish(self):
         del myconn.listconn[self.client_address]
         pass
     pass

 if __name__ == '__main__':
     server = SocketServer.ThreadingTCPServer(('localhost',8022),MyServer)
     print 'waiting for connection...'
     server.serve_forever()

客户端代码

 # -*- coding:utf-8 -*-

 from socket import *
 import threading

 HOST = 'localhost'  ##
 PORT=8022
 BUFSIZ = 1024  ##缓冲区大小  1K
 ADDR = (HOST,PORT)

 tcpCliSock = socket(AF_INET,SOCK_STREAM)
 tcpCliSock.connect(ADDR)

 class inputdata(threading.Thread):
     def run(self):
         while True:
             data = raw_input('> ')
             tcpCliSock.send(data)
         pass

 class getdata(threading.Thread):
     def run(self):
         while True:
             data = tcpCliSock.recv(BUFSIZ)
             print data
     pass

 def main():
     myinputd = inputdata()
     mygetdata = getdata()
     myinputd.start()
     mygetdata.start()
     myinputd.join()
     mygetdata.join()

 if __name__ == '__main__':
     main()

程序需要先运行服务端在运行多个客户端，多个客户端可已进行通讯