socketserver模块TCP和UDP协议形式

Posted 2020-12-03 lijieshi

# >>>>>>>>>>>>>>>>>>>>服务端socketserver模块通讯循环>>>>>>>>>>>>>>
import socketserver

class MyHandler(socketserver.BaseRequestHandler):
    def handle(self):#通过对象调用handle方法,方法名一个字都不能改
        while True:
            # 通信循环
            try:
                #self.request相当于conn
                # print(self.client_address)
                # print(self.request) #self.request=conn
                data=self.request.recv(1024)
                if len(data)==0:break
                self.request.send(data.upper())
            except ConnectionResetError:
                break

if __name__==‘__main__‘:
    #额,bind_and_activate相当于bind 和listen
    s=socketserver.ThreadingTCPServer((‘127.0.0.1‘,8080),MyHandler,bind_and_activate=True)
    #这里拿到一个socketserver的对象
    s.serve_forever()#代表连接循环
    # 循环建立连接,每建立一个连接就会启动一个线程(服务员)+调用Myhandler类产生一个对象,调用该对象下的handle方法,专门与刚刚建立好的连接做通信循环



# >>>>>>>TCP协议的客户端

import socket ,time
phone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
phone.connect((‘127.0.0.1‘,8080))#指定服务端的IP 的端口

while True:
    time.sleep(1)
    msg=‘client23223‘
    if len(msg)==0:continue
    phone.send(msg.encode(‘utf-8‘))
    data=phone.recv(1024)
    print(data)
phone.close()



# ..........................end....................

# >>>>>>>>>>>>>>>>>>>>>>>>>socketsever基于UDP通讯的服务端>>>>>>>>>>>
import socketserver
class MyHandler(socketerver.BaserequestHandler):
     def handle(self):
        #通讯循环
        #print(self.client_address)
        #这里的结果为客户端的IP和端口
        #print(self.request)
        #结果为一个元组有两个参数,第一个是收到的客户端的内容,第二个是socket的套接字对象
        data=self.request[0]
        print(‘客户消息‘,data)
        self.request[1].sendto(data.upper(),self.client_address)

if __name__ == ‘__main__‘:
     s=sockserver.ThreadingUDPServer((‘127.0.0.1‘,8080),MyHandler)
     s.serve_forever()#永远建立链接


# >>>>>>>>>>>>>>>>>>>>>>>>>>客户端>>>>>>>>>>>>>>>>>>>
import socket
client=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
while True:
    msg=‘client444444444‘
    client.sendto(msg.encode(‘utf-8‘),(‘127.0.0.1‘,8080))
    data.server_addr=client.recvfrom(1024)

client.close()