socketserver模块

基于tcp协议通信服务端必须满足至少三点:1. 绑定一个固定的ip和port2. 一直对外提供服务,稳定运行3. 能够支持并发

# 服务端必须满足至少三点: # 1. 绑定一个固定的ip和port # 2. 一直对外提供服务,稳定运行 # 3. 能够支持并发 import socketserver  # 自定义类用来处理通信循环 class MyTCPhanler(socketserver.BaseRequestHandler):     def handle(self):         while True:             try:                 data = self.request.recv(1024)                 if len(data) == 0: break  # 针对linux系统                 print('-->收到客户端的消息: ', data)                 self.request.send(data.upper())             except ConnectionResetError:                 break          self.request.close()   if __name__ == '__main__':     server=socketserver.ThreadingTCPServer(('127.0.0.1',8081),MyTCPhanler)     server.serve_forever() # 链接循环

from socket import *  client = socket(AF_INET, SOCK_STREAM) client.connect(('127.0.0.1', 8081))  # 通信循环 while True:     msg=input('>>: ').strip() #msg=''     if len(msg) == 0:continue     client.send(msg.encode('utf-8')) #client.send(b'')     client.send('hello'.encode('utf-8')) #client.send(b'')     print('has send')     data=client.recv(1024)     print('has recv')     print(data)  client.close()  或 from socket import *  client = socket(AF_INET, SOCK_STREAM) client.connect(('127.0.0.1', 8081))  # 通信循环 while True:     client.send('hello'.encode('utf-8')) #client.send(b'')     data=client.recv(1024)     print(data)  client.close()

基于udp协议通信

import socketserver  class MyUdphandler(socketserver.BaseRequestHandler):     def handle(self):         data,sock=self.request         sock.sendto(data.upper(),self.client_address)  if __name__ == '__main__':     server=socketserver.ThreadingUDPServer(('127.0.0.1',8081),MyUdphandler)     server.serve_forever()

from socket import *  client=socket(AF_INET,SOCK_DGRAM)  while True:     client.sendto(b'hello',('127.0.0.1',8081))     data,server_addr=client.recvfrom(1024)     print(data)