Python--Socket样例
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SocketServer包对socket包进行了包装(封装),使得创建socket服务非常简单。
TCPServer+BaseRequestHandler
使用TCPServer和BaseRequestHandler编写socket服务的样例。#-*- coding:utf-8 -*-from SocketServer import TCPServer, BaseRequestHandlerimport tracebackclass MyBaseRequestHandlerr(BaseRequestHandler): """ #从BaseRequestHandler继承,并重写handle方法 """ def handle(self): #循环监听(读取)来自客户端的数据 while True: #当客户端主动断开连接时,self.recv(1024)会抛出异常 try: #一次读取1024字节,并去除两端的空白字符(包括空格,TAB,\r,\n) data = self.request.recv(1024).strip() #self.client_address是客户端的连接(host, port)的元组 print "receive from (%r):%r" % (self.client_address, data) #转换成大写后写回(发生到)客户端 self.request.sendall(data.upper()) except: traceback.print_exc() breakif __name__ == "__main__": #telnet 127.0.0.1 9999 host = "" #主机名,可以是ip,像localhost的主机名,或"" port = 9999 #端口 addr = (host, port) #购置TCPServer对象, server = TCPServer(addr, MyBaseRequestHandlerr) #启动服务监听 server.serve_forever()
TCPServer+StreamRequestHandler
使用TCPServer和StreamRequestHandler编写socket服务的样例。StreamRequestHandler从BaseRequestHandler,并做了封装,使得读写数据更容易。
#-*- coding:utf-8 -*-from SocketServer import TCPServer, StreamRequestHandlerimport tracebackclass MyStreamRequestHandlerr(StreamRequestHandler): """ #继承StreamRequestHandler,并重写handle方法 #(StreamRequestHandler继承自BaseRequestHandler) """ def handle(self): while True: #客户端主动断开连接时,self.rfile.readline()会抛出异常 try: #self.rfile类型是socket._fileobject,读写模式是"rb",方法有 #read,readline,readlines,write(data),writelines(list),close,flush data = self.rfile.readline().strip() print "receive from (%r):%r" % (self.client_address, data) #self.wfile类型是socket._fileobject,读写模式是"wb" self.wfile.write(data.upper()) except: traceback.print_exc() breakif __name__ == "__main__": host = "" #主机名,可以是ip,像localhost的主机名,或"" port = 9999 #端口 addr = (host, port) server = TCPServer(addr, MyStreamRequestHandlerr) server.serve_forever()
ThreadingTCPServer+StreamRequestHandler=多线程socket
使用ThreadingTCPServer和StreamRequestHandler编写socket服务的样例。ThreadingTCPServer从ThreadingMixIn和TCPServer继承,实现多线程。
#-*- coding:utf-8 -*-from SocketServer import ThreadingTCPServer, StreamRequestHandlerimport tracebackclass MyStreamRequestHandlerr(StreamRequestHandler): def handle(self): while True: try: data = self.rfile.readline().strip() print "receive from (%r):%r" % (self.client_address, data) self.wfile.write(data.upper()) except: traceback.print_exc() breakif __name__ == "__main__": host = "" #主机名,可以是ip,像localhost的主机名,或"" port = 9999 #端口 addr = (host, port) #ThreadingTCPServer从ThreadingMixIn和TCPServer继承 #class ThreadingTCPServer(ThreadingMixIn, TCPServer): pass server = ThreadingTCPServer(addr, MyStreamRequestHandlerr) server.serve_forever()
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