socketserver网络编程基础

http://www.cnblogs.com/alex3714/articles/5830365.html

并发处理

#!/usr/bin/env python
# Author:Zhangmingda
import socketserver
class Mytcphandler(socketserver.BaseRequestHandler):
    '''
    定义一个socketserver的handler处理类，必须继承socketserver.BaseRequestHandler
    '''
    def handle(self):
        '''所有的与单个客户端的交互都在此方法'''
        print('定义自己的socketserver.子handler类hander方法')
        while True:
            try:
                print('客户端IP:{}端口：{}'.format(self.client_address[0], self.client_address[1]))
                print('等待接收数据...')
                self.data = self.request.recv(1024)
                print('收到数据：',self.data.decode())
                self.request.sendall(self.data.decode().upper().encode())
            except ConnectionResetError as e:
                print('连接出现错误/客户端已断开：%s'% e)
                break
if __name__ == "__main__":
    HOST,PORT = 'localhost',6969
    print('开启服务，监听端口')
    server = socketserver.ForkingTCPServer((HOST,PORT),Mytcphandler) #多进程并发
    # server = socketserver.ThreadingTCPServer((HOST,PORT),Mytcphandler)#多线程并发
    server.serve_forever()

服务端并发(多线程、多进程)

#!/usr/bin/env python
# Author:Zhangmingda

#!/usr/bin/env python
# Author:Zhangmingda
import  socket
print('创建客户端实例')
client = socket.socket()
print('开始连接服务器')
client.connect(('localhost',6969))
while True:
    msg = input('>>>输入要发送的命令：')
    print('开始发送数据')
    client.send(msg.encode('utf-8')) #发送汉子，必须encode()成bytes类型数据进行传输
    if msg == '断开':
        print('关闭数据连接')
        client.close()
        break
    print('开始接受数据')
    recv_data = client.recv(1024)
    print('返回数据：',recv_data.decode())

客户端