python 基础教程 24章 虚拟茶话会 async2

#/usr/bin/python
# *-*coding:utf-8 *-*




"""
#python 基础教程24章 24-4 带有ChatSession类的服务器程序


在python2中运行，python3需要用 encode('utf-8')转码
set.terminator(term)设置要在信道上识别的终止对象
collect_incoming_data(data)在每次从套接字中读取一些数据时被自动调用
found_terminator()当输入的数据流与set_terminator()设置的终止条件匹配时调用


"""


from asyncore import dispatcher
from asynchat import async_chat
import socket, asyncore


PORT = 5005




class ChatSession(async_chat):

def __init__(self, sock):
async_chat.__init__(self, sock)
self.set_terminator("\r\n")
self.data = []

def collect_incoming_data(self, data):
self.data.append(data)

def found_terminator(self):
line = ''.join(self.data)
self.data = []
#处理这行数据.在服务器端打印出来
print(line)




class ChatServer(dispatcher):

def __init__(self, port):
dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind(('', port))
self.listen(5)
self.sessions = []

def handle_accept(self):
conn, addr = self.accept()
self.sessions.append(ChatSession(conn))




if __name__ == '__main__':
s = ChatServer(PORT)
try:
asyncore.loop()
except KeyboardInterrupt:
print(' End run')