python中的SocketServer.StreamRequestHandler类中的读写说明
SocketServer.StreamRequestHandler中对客户端发过来的数据是用rfile属性来处理的,rfile是一个类file对象.有缓冲.可以按行分次读取;发往客户端的数据通过wfile属性来处理,wfile不缓冲数据,对客户端发送的数据需一次性写入.
如下代码:
#! /usr/bin/env python#coding=utf-8'''单线程服务器程序'''from SocketServer import TCPServer as TCP, StreamRequestHandler as SRHclass MyTCPHandler(SRH): def handle(self): ''' 覆盖方法，对父类的方法重写 ''' self.firstline=self.rfile.readline().strip() #命令分发 if(self.firstline=='login'): print 'if login' name=self.rfile.readline().strip() print name pwd=self.rfile.readline().strip() print name self.login(name,pwd) elif(self.firstline=='start_server'): pass elif(self.firstline=='stop_server'): pass elif(self.firstline=='open_firewall'): pass elif(self.firstline=='close_firewall'): pass elif(self.firstline=='read_firewall_ip_list'): pass elif(self.firstline=='write_firewall_ip_list'): pass elif(self.firstline=='read_server_ip_list'): pass elif(self.firstline=='write_server_ip_list'): pass elif(self.firstline=='remote_update'): pass elif(self.firstline=='local_synchronize'): pass else: print 'error' '''print self.rfile.readline() print self.rfile.readline() ''' line=self.rfile.readline() while line!='': #self.wfile.write('%s' % line) line=self.rfile.readline() print line self.wfile.write('ok'+'ok2'+'ok3')#这里的ok,ok1,ok2不能分次write,会报错 def login(self,name,pwd): print 'login' self.wfile.write(name+pwd+'ok')if __name__ == "__main__": #本机，使用端口9999 HOST, PORT = "localhost", 9999 # 创建服务器并绑定到本机的9999端口 server = TCP((HOST, PORT), MyTCPHandler) # Activate the server; this will keep running until you # interrupt the program with Ctrl-C server.serve_forever()