TCP-python实现

python实现TCP server and TCP client

程序设计基本框架

TCP server

import socket

host = "172.18.101.1"
port = 8888
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.bind((host, port))
server_socket.listen(2)

conn, addr = server_socket.accept()

# 开启保活机制
conn.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, True)
conn.ioctl(socket.SIO_KEEPALIVE_VALS, (5, 60 * 1000, 30 * 1000))
# 5分钟后对方还没有反应，开始探测连接是否存在；60秒钟探测一次，默认探测10次，失败则断开。

while True:
    # 打印从客户端获取的数据
    msg = conn.recv(1024)
    print(msg.decode())

    # 返回状态到客户端
    data = input()
    conn.send(data.encode())

conn.close()
server_socket.close()

TCP client

import socket

host = "172.18.101.1"
port = 8888

client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 开启保活机制
client_socket.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, True)
client_socket.ioctl(socket.SIO_KEEPALIVE_VALS, (5, 60 * 1000, 30 * 1000))
client_socket.connect((host, port))

while True:
    send_data = input()
    client_socket.send(send_data.encode())

    msg = client_socket.recv(1024)
    print(msg.decode())

client_socket.close()