基于socketserver模块并发套接字

1、基于tcp协议

服务端：

import socketserver
class MyHandler(socketserver .BaseRequestHandler ):
    def handle(self):  #通信循环
        while True :
            try:
                data = self.request .recv(1024)  #request表示建立的链接 
                if len(data)== 0:break
                self.request .send(data.upper())
            except ConnectionResetError :
                break
if __name__=='__main__' :
    s= socketserver .ThreadingTCPServer (('127.0.0.1',8080),MyHandler ,bind_and_activate= True )
    s.serve_forever()
# 链接循环，每建立一个链接就会启动一个线程，并调用Myhanlder类产生一个对象，调用对象下的handle方法
# 与刚刚建立好的链接做通讯循环

客户端：

import socket
phone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
phone.connect(('127.0.0.1',8080)) # 指定服务端ip和端口

while True:
    msg=input('>>: ').strip() #msg=''
    #msg = 'client22222'  # msg=''
    if len(msg) == 0:continue
    phone.send(msg.encode('utf-8'))
    data=phone.recv(1024)
    print(data)
phone.close()

2、基于udp协议

#服务端
class Myhandler(socketserver .BaseRequestHandler ):
    def handler(self):
        #print(self.client_address ) #客户端IP和端口
# 套接字对象 (b'gg', <socket.socket fd=344, family=AddressFamily.AF_INET, type=SocketKind.SOCK_DGRAM, proto=0, laddr=('127.0.0.1', 8080)>)
        #print(self.request) 
        data = self.request [0]  #对应着客户端发来的信息
        print('客户消息',data)
        self.request [1].sendto(data.upper(),self.client_address )
if __name__ == '__main__':
    s= socketserver .ThreadingUDPServer (('127.0.0.1',8080),Myhandler )
    s.serve_forever()

客户端：

import socket
client=socket.socket(socket.AF_INET,socket.SOCK_DGRAM) #数据报协议-》udp
while True:
    msg=input('>>: ').strip() #msg=''
    client.sendto(msg.encode('utf-8'),('127.0.0.1',8080))
    data,server_addr=client.recvfrom(1024)
    print(data)

client.close()