# -*- coding:utf-8 -*-
#放在Linux下运行
# socketserver一共有这么几种类型
#
# class socketserver.TCPServer(server_address, RequestHandlerClass, bind_and_activate=True)
# This uses the Internet TCP protocol, which provides for continuous streams of data between the client and server.
#
# class socketserver.UDPServer(server_address, RequestHandlerClass, bind_and_activate=True)
# This uses datagrams, which are discrete packets of information that may arrive out of order or be lost while in transit. The parameters are the same as for TCPServer.
#
import socketserver
class MyTCPHandler(socketserver.BaseRequestHandler):
    def handle(self): #每个请求都会走这里
        while True:
            try :
                self.data = self.request.recv(1024).strip()
                print("{} wrote:".format(self.client_address[0]))
                print(self.data)
                self.request.send(self.data.upper())
            except ConnectionResetError as e:
                print(e)
                break
if __name__ == "__main__":
    HOST, PORT = "localhost", 9999
    #多线程
    server = socketserver.ThreadingTCPServer((HOST, PORT), MyTCPHandler) #修改的地方
    #多进程(window下不行，Linux下可以)
    # ForkingTCPServer 每来一个请求，启动一个进程，太费资源 pass
    #server = socketserver.ForkingTCPServer((HOST, PORT), MyTCPHandler) #修改的地方
    server.serve_forever()