Python实现基于tornado的异步TCPServer和TCPClient即时通信小程序代码

TCPServer端，tcp_server.py：

# -*- coding: utf-8 -*-
#!/usr/bin/env python 
# @Time    : 2018/5/15 17:34
# @Desc    : 
# @File    : tcp_server.py
# @Software: PyCharm
from tornado import ioloop, gen, iostream
from tornado.tcpserver import TCPServer
class MyTcpServer( TCPServer ):
    @gen.coroutine
    def handle_stream( self, stream, address ):
        try:
            while True:
                msg = yield stream.read_bytes( 20, partial = True )
                print msg, 'from', address
                stream.write(str(msg))
                yield stream.write( msg[::-1] )
                if msg == 'over':
                    stream.close()
        except iostream.StreamClosedError:
            pass
if __name__ == '__main__':
    server = MyTcpServer()
    server.listen( 8036 )
    server.start()
    ioloop.IOLoop.current().start()

tcp_client端，（ 键盘输入）tcp_client.py：

# -*- coding: utf-8 -*-
#!/usr/bin/env python 
# @Time    : 2018/5/15 17:38
# @Desc    : 
# @File    : tcp_client.py
# @Software: PyCharm
from tornado import ioloop, gen, iostream
from tornado.tcpclient import TCPClient
@gen.coroutine
def Trans():
    stream = yield TCPClient().connect( 'localhost', 8036 )
    try:
        while True:
            DATA = raw_input("Enter your input: ");
            yield stream.write( str(DATA) )
            back = yield stream.read_bytes( 20, partial = True )
            msg =  yield stream.read_bytes(20, partial=True)
            print msg
            print back
            if DATA=='over':
                break
    except iostream.StreamClosedError:
        pass
if __name__ == '__main__':
    ioloop.IOLoop.current().run_sync( Trans )

先启动tcp_server.py端，后启动tcp_client.py端，输入值结果如下：

tcp_server.py端：

tcp_client.py端：

温馨提示：使用该小程序前，得下载安装tornado==4.5.1，命令pip  install tornado==4.5.1 ，用该命令前你得安装好pip。