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  • Python Socket

    Socket_server:

    import socket
    import os
    
    port = 9000
    host = "127.0.0.1"
    ADDR = (host, port)
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server:
    
        server.bind(ADDR)
        server.listen(5)
    
        while True:
            print("Ready For Connection!")
            conn,addr = server.accept()
            while True:
                    print("Read For Receive")
                    try:                                      #当远程主机主动关闭后,再次conn.recv会导致ConnectionResetError,采用try处理。
                        cmd = conn.recv(1024)
                        if not cmd:                           #如果发送命令为空,说明断开连接
                            print("远程主机断开连接")
                            break
                        print("Received CMD:", cmd.decode())
                        cmd_result = os.popen(cmd.decode()).read()
                        if len(cmd_result) == 0:              #如果命令执行结果为空,避免等待,更改执行结果内容。
                            cmd_result = "Error:cmd has no output"
                        size = len(cmd_result.encode("utf-8"))  
                        conn.send(str(size).encode("utf-8"))     #发送执行结果大小
                        recv = conn.recv(1024)                   #如果client接收到大小,回馈OK信息。   如果两个send同时发送,会产生粘包,所以采用接受回送消息方式
                        print("Size Confirm",recv)
                        conn.send(cmd_result.encode("utf-8"))    #发送命令执行后的结果。
                    except ConnectionResetError as e:
                        break
    

     

    Socket_Client:

    import socket
    import sys
    
    port = 9000
    host = "127.0.0.1"
    ADDR = (host, port)
    
    
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as clinet:
        clinet.connect(ADDR)
        while True:
            data_size = 0
            data = b""
            cmd = input("操作命令:")
            if len(cmd) == 0:
                continue
            clinet.send(cmd.encode("utf-8"))
            result_size = clinet.recv(1024).decode()         #接收发送命令返回值大小
            clinet.send(b"OK")                                         #接受到返回值后,发送确认消息
    
            while data_size < int(result_size):
                data += clinet.recv(1024)
                data_size = len(data)
    
            print(data.decode())
            print("Result Size:%s, Received Size:%s" % (result_size, data_size))
    

      

     

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  • 原文地址:https://www.cnblogs.com/onlybobby/p/6858336.html
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