三十socketserver模块的基本使用

Posted 2021-02-27 marin0817

一、基于tcp协议的使用
服务端：

import socketserver


class MyRequestHandle(socketserver.BaseRequestHandler):
    def handle(self):
        # 如果tcp协议，self.request=>conn
        print(self.client_address)
        while True:
            try:
                msg = self.request.recv(1024)
                if len(msg) == 0: break
                self.request.send(msg.upper())
            except Exception:
                break
        self.request.close()


#  服务端应该做两件事
# 第一件事：循环地从半连接池中取出链接请求与其建立双向链接，拿到链接对象
s = socketserver.ThreadingTCPServer((‘127.0.0.1‘, 8889), MyRequestHandle)
s.serve_forever()
# 等同于
# while True:
#     conn,client_addr=server.accept()
#     启动一个线程(conn,client_addr)

# 第二件事：拿到链接对象，与其进行通信循环===>handle

客户端：

from socket import *

client=socket(AF_INET,SOCK_STREAM)
client.connect((‘127.0.0.1‘,8889))

while True:
    msg=input(‘请输入命令>>：‘).strip()
    if len(msg) == 0:continue
    client.send(msg.encode(‘utf-8‘))

    res=client.recv(1024)
    print(res.decode(‘utf-8‘))

二、基于udp协议的使用
服务端：

import socketserver


class MyRequestHanlde(socketserver.BaseRequestHandler):
    def handle(self):
        client_data = self.request[0]
        server = self.request[1]
        client_address = self.client_address
        print(‘客户端发来的数据%s‘ % client_data)
        server.sendto(client_data.upper(), client_address)


s = socketserver.ThreadingUDPServer(("127.0.0.1", 8888), MyRequestHanlde)
s.serve_forever()
# 相当于:只负责循环地收
# while True:
#     data,client_addr=server.recvfrom(1024)
#     启动一个线程处理后续的事情(data,client_addr)

客户端：

import socket

client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  # 流式协议=》tcp协议

while True:
    msg = input(‘>>>: ‘).strip()
    client.sendto(msg.encode(‘utf-8‘), (‘115.29.65.16‘, 8888))
    res = client.recvfrom(1024)
    print(res)

client.close()