用socketserver实现简单的FTP

#socketserver使用的的四个步骤
#1、创建一个请求的处理类,它是BaseReauestHanndler子类,并且重写父类的handler的方法
#2、实例化一个服务类(TCPServer、UTPServer、UnixStreamServer、UnixDatagramServer)
#并且对实例化的服务类(如:TCPServer)将实例化的handler的方法当参数传入
#3、调用实例化服务类的handler的方法,(如:server.server_forever()),处理请求。
#4、通过server.close()关闭服务
ex:服务端
 1 import socketserver
 2 class MyTCPServer(socketserver.BaseRequestHandler):
 3     def handle(self):
 4         while True:
 5             try:
 6                 self.data = self.request.recv(1024).strip()
 7                 print("{} wrote:".format(self.client_address[0]))
 8                 print(self.data)
 9                 self.request.send(self.data.upper())
10             except ConnectionResetError as e:
11                 print("err",e)
12                 break
13 if __name__ == "__main__":
14     HOST, PORT = "localhost", 9999
15     # Create the server, binding to localhost on port 9999
16     server = socketserver.ThreadingTCPServer((HOST, PORT),MyTCPServer)#ThreadingTCPServer多线程
17     server.serve_forever()
18 server.server_close()

ex:客户端

 

 1 import socket
 2 client=socket.socket()#声明socket类型,同时生成连接对象
 3 client.connect(('localhost',9999))
 4 
 5 while True:
 6     msg=input(">>:").strip()
 7     if len(msg)==0:#当输入的消息是空时,不发送,等待输入非空后再发送
 8         continue
 9     client.send(msg.encode("utf-8"))
10     data=client.recv(1024)
11     print("recv:",data.decode())
12 client.close()

 

posted on 2017-11-01 20:17  Alan_chow  阅读(502)  评论(0编辑  收藏  举报

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