파이썬 UDP와 TCP 통신

1. 파이썬 UDP 통신

서버가 먼저 실행됩니다

import socket
import time


def recv_msg(udp_socker):
    recv_data = udp_socker.recvfrom(1024)  #接收最大1024字节大小的数据
    print("%s:%s" % (str(recv_data[1]), recv_data[0].decode("utf-8")))  #接收的数据是数组，第一个是ip：端口，第二个值才是数据

if __name__ == "__main__":
    udp_socket2 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    udp_socket2.bind(("", 7789))
    # 接收并显示
    while True:
        recv_msg(udp_socket2)
        time.sleep(1)

클라이언트가 데이터를 보냅니다.

import socket

def send_msg(udp_socket):
    #发送信息
    dest_ip = "127.0.0.1"  #没有服务器，就本机做服务器
    dest_port = 7789
    send_data = "111he11lloworld"
    udp_socket.sendto(send_data.encode("utf-8"),(dest_ip,dest_port))



def main():
    # 创建套接字
    udp_socket1 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    # 绑定信息
    udp_socket1.bind(("", 7788))
    # 发送
    send_msg(udp_socket1)


if __name__ == "__main__":
    main()

2. 파이썬 TCP 통신

섬기는 사람

import socket

def main():
    tcp_server_socker = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    tcp_server_socker.bind(("",7789))
    #服务器拒绝(超过限制数量的)连接之前，操作系统可以挂起的最大连接数量，即最大连接数
    tcp_server_socker.listen(128)

    #连接监听，这是个阻塞函数
    new_client_socket, client_addr = tcp_server_socker.accept()
    print(client_addr)
    #接收数据，缓存池1024字节大小
    recv_data = new_client_socket.recv(1024)
    print(recv_data)
    print("接收数据"+str(recv_data,encoding="utf-8"))

    #回送数据
    new_client_socket.send("success receive".encode())

    #后置动作，关闭套接字
    new_client_socket.close()
    tcp_server_socker.close()

if __name__ == "__main__":
    while True:
        main()

고객

import socket
import json
import time
import datetime


def main():
    tcp_client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server_addr = ("127.0.0.1",7789)
    tcp_client_socket.connect(server_addr)

    #发送数据
    print("ready to sending")
    date = (datetime.datetime.now()).strftime("%Y-%m-%d %H:%M:%S")
    data = f'<46>USM |1|{date}|1|1|dfs1|10.5.68.136|登录系统: 密码登录||\n'

    tcp_client_socket.send(data.encode("utf-8"))
    print("success to send---")
    recv_data = tcp_client_socket.recv(1024)
    print("recv:"+str(recv_data,encoding="utf-8"))


    #释放socket
    tcp_client_socket.close()

if __name__ == "__main__":
    main()

여기에 전송되는 데이터는 syslog 형식으로 표준 데이터는 끝에 \n(darkpit)을 붙여야 하며 데모를 원하시면 추가하지 않으셔도 됩니다.