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  • 黏包现象之udp

    老师的博客:http://www.cnblogs.com/Eva-J/articles/8244551.html

    server端

    import socket
    import subprocess
    server=socket.socket(type=socket.SOCK_DGRAM)
    ip_port=('192.168.43.155',8895)
    server.bind(ip_port)
    while 1:
        message,address=server.recvfrom(1024)
        if message==b'q':
            break
        get=subprocess.Popen(message.decode('utf-8'),
                             shell=True,
                             stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE)
        server.sendto(get.stdout.read(),address)
        print(get.stdout.read())
        server.sendto(get.stderr.read(),address)
        print(get.stderr.read())
    server.close()

    client端

    import socket
    ip_port=('192.168.43.155',8895)
    client=socket.socket(type=socket.SOCK_DGRAM)
    while 1:
        cmd=input('<<:').encode('utf-8')
        if cmd==b'q':break
        client.sendto(cmd,ip_port)
        message,addresss=client.recvfrom(4096)
        conformation,site=client.recvfrom(4096)
        print(message.decode('gbk'),'out')
        print(conformation.decode('gbk'),'erre')
    client.close()

    注意 udp永不黏包,但是如果传送的数据包大于bufsize将会报错,及上面server端的信息发送的长度不能超过4096,否则报错

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  • 原文地址:https://www.cnblogs.com/accolade/p/10535532.html
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