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python实现的udp协议Server和Client代码实例

Pythonserver实例协议代码 实现 UDP Client
2023-06-13 09:15:27 时间
直接上代码：
Server端:
复制代码代码如下:

 #!/usr/bin/envpython
 #UDPEchoServer- udpserver.py
 importsocket,traceback

 host=""
 port=54321

 s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
 s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
 s.bind((host,port))

 while1:
    try:
        message,address=s.recvfrom(8192)
        print"Gotdatafrom",address,":",message
        s.sendto(message,address)
    except(KeyboardInterrupt,SystemExit):
        raise
    except:
        traceback.print_exc()
 

Client端:
复制代码代码如下:
1#!/usr/bin/envpython
 #UDPClient-udpclient.py
 importsocket,sys

 host=sys.argv[1]
 textport=sys.argv[2]

 s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
 try:
    port=int(textport)
 exceptValueError:
    port=socket.getservbyname(textport,"udp")
 s.connect((host,port))
 while1:
    print"Enterdatatotransmit:"
    data=sys.stdin.readline().strip()
    s.sendall(data)
    print"Lookingforreplies;pressCtrl-CorCtrl-Breaktostop."
    buf=s.recv(2048)
    ifnotlen(buf):
        break
    print"Serverreplies:",
    sys.stdout.write(buf)
    print"\n"
 

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