python tcp server-client

基本思路：
1、指定IP、端口号；
2、绑定；
3、开启监听；
4、接受连接创建socket；
5、收发数据

参考来源 python tcp server 连接多个客户端

tcp_server

# tcp_server
# coding=utf-8
# !/usr/bin/env python

import socket
import time
import threading

serverIP = "0.0.0.0"
serverPort = 10620
clientSocketList = []  # 放每个客户端的socket

def init_server():
    sockServer = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sockServer.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    server_addr = (serverIP, serverPort)
    sockServer.bind(server_addr)
    sockServer.listen(10)
    print(server_addr)
    print("The server has started, waiting for the client to connect ......")
    return sockServer


def accept_client(sockServer):
    while True:
        time.sleep(0.1)
        clientSock, addr = sockServer.accept()
        strTime = time.strftime('%Y-%m-%d %H:%M:%S')
        strPrint = 'connected from: {}'.format(addr)
        strPrint = strTime + strPrint
        print(strPrint)
        clientSock.setblocking(0)
        clientSocketList.append([clientSock, addr])


def server_Send(direction):
    while True:
        time.sleep(0.1)
        try:
            sendByte = bytes(direction)
            for clientInfo in clientSocketList:
                currClient, addr = clientInfo
                currClient.sendall(sendByte)
                print("to {}, send <{}> ".format(addr, sendByte))
        except Exception as e:
            clientSocketList.remove(clientInfo)
            continue


def server_Recv():
    while True:
        time.sleep(0.1)
        for clientInfo in clientSocketList:
            # print(client.getsockname())
            # print(client.getpeername())
            currClient, addr = clientInfo
            try:
                dataRecv = currClient.recv(1024)
            except Exception as e:
                continue

            if not dataRecv:
                clientSocketList.remove(clientInfo)
                print("currClient{} has closeed.\n".format(addr))
                continue
            try:
                direction = float(dataRecv)
                strTime = time.strftime('%Y-%m-%d %H:%M:%S')
                strRecv = "from {} recv len={}, data={}".format(addr, len(dataRecv), direction)
                print(strRecv)
            except Exception as e:
                print(e)
                pass


if __name__ == '__main__':
    sockServer = init_server()
    threadCheckClient = threading.Thread(target=accept_client, args=(sockServer, ))  # 子线程
    # threadCheckClient.setDaemon(True)
    threadCheckClient.start()

    threadSend = threading.Thread(target=server_Recv)  # 子线程
    # threadSend.setDaemon(True)
    threadSend.start()

tcp_client

# tcp_client

# coding=utf-8
# !/usr/bin/env python

import socket
import sys, time
from threading import Thread

serverIP = '127.0.0.1'
serverPort = 10620 

def init_client():
  tcp_client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  try:
    tcp_client.connect((serverIP, serverPort))
  except socket.error:
    print('fail to setup socket connection')
  return tcp_client


def client_Send(tcp_client):
    while True:
        time.sleep(0.1)
        time.sleep(1)
        try:
            strTime = time.strftime('%Y-%m-%d %H:%M:%S')
            strTime = str(12345.5678909)
            sendBytes =strTime.encode()
            tcp_client.sendall(sendBytes)
            print(sendBytes)
        except Exception as e:
            break


def client_Recv(tcp_client):
    while True:
        time.sleep(0.1)
        try:
            dataRecv = tcp_client.recv(1024)  # 到这里程序继续向下执行
        except Exception as e:
            continue
        if not dataRecv:
            break
        else:
            strTime = time.strftime('%Y-%m-%d %H:%M:%S')
            strRecv = "from server recv len={}, data={}".format( len(dataRecv), dataRecv)
            strPrint = strTime + strRecv
            print(strPrint)
            

if __name__ == "__main__":
    tcp_client = init_client()
    threadSend = Thread(target=client_Send, args=(tcp_client, ))  # 子线程
    threadSend.start()