day43-2 UDP协议套接字变成，socketserver实现高并发

深碍√TFBOYSˉ_ 2021-12-14 15:05 164阅读 0赞

# UDP协议套接字编程 #

*  不用连接直接进行传输

服务端

import socket
    
    server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    server.bind(('127.0.0.1', 8000))
    print('wait...')
    
    while True:
        data, client_addr = server.recvfrom(1024)
        print(data, client_addr)
        server.sendto(data.upper(), client_addr)

客户端

import socket
    
    client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    
    while True:
        msg = input('please your enter msg')
        client.sendto(msg.encode('utf-8'), ('127.0.0.1', 8000))
    
        data, server_addr = client.recvfrom(1024)
        print(data, server_addr)

# socketserver实现高并发 #

*  实现同一时刻有多个人接听

服务端

import socketserver
    import subprocess
    import struct
    
                      # 继承父类的连接循环
    class MyHandler(socketserver.BaseRequestHandler):
        # 自己写一个通信循环，不用父类的
        def handle(self):
    
            while True:
                try:
                    cmd = self.request.recv(1024)
                    print(cmd)
    
                    pipeline = subprocess.Popen(cmd.decode('utf8'),
                                                shell=True,
                                                stderr=subprocess.PIPE,
                                                stdout=subprocess.PIPE)
    
                    stdout = pipeline.stdout.read()
                    stderr = pipeline.stderr.read()
    
                    count_len = len(stdout) + len(stderr)
                    guding_bytes = struct.pack('i', count_len)
    
                    self.request.send(guding_bytes)  # 4
    
                    self.request.send(stderr + stdout)
    
                except ConnectionResetError:
                    break
    
    
    # 使用socketserver的连接循环(并发),但是使用了自己的通信循环
    # myhandler = MyHandler()
    if __name__ == '__main__':
        server = socketserver.ThreadingTCPServer(('127.0.0.1', 8000), MyHandler, bind_and_activate=True)
        print('start...')
        server.serve_forever()

客户端（可以使用多个）

import socket
    import struct
    
    phone = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    phone.connect(('127.0.0.1', 8080))
    
    while True:
        msg = input('please your enter msg')
        phone.send(msg.encode('utf-8'))
    
        count_len = phone.recv(4)
        res_len = struct.unpack('i', count_len)[0]
    
        data = phone.recv(res_len)
        print(data.decode('gbk'))

转载于:https://www.cnblogs.com/lucky75/p/11098959.html