python手记-twisted(4)

from twisted.internet.protocol import Protocol
from twisted.internet import reactor
from twisted.internet.protocol import Factory
from twisted.internet.endpoints import TCP4ServerEndpoint
#http://blog.csdn.net/myhaspl
class Echo(Protocol):

def connectionMade(self):
self.factory.numProtocols=self.factory.numProtocols+1
self.transport.write("welcome!\nthere are currently %d open connections.\n"%(self.factory.numProtocols,))

def dataReceived(self,data):
mydata=data.strip()
if mydata!="quit" and  mydata!="quit\r\n" and mydata!="quit\r":
self.transport.write(self.factory.message+data)
else:
self.transport.write(self.factory.message+"byebye\n")
self.transport.numProtocols=self.factory.numProtocols-1
self.transport.loseConnection()
def connectionLost(self, reason):
self.factory.numProtocols = self.factory.numProtocols - 1

#http://blog.csdn.net/myhaspl
class EchoFactory(Factory):
#use the default buildProtocol to create protocol
protocol=Echo
numProtocols=0

def __init__(self,message=None):
self.message=message or "hello,world"
#http://blog.csdn.net/myhaspl
endpoint=TCP4ServerEndpoint(reactor,8001)
endpoint.listen(EchoFactory("myhaspl:"))
reactor.run()

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$ telnet 120.55.*.* 8001Trying 120.55.*.* ...Connected to 120.55.*.* .Escape character is '^]'.welcome!there are currently 1 open connections.hellomyhaspl:helloworldmyhaspl:worldquitmyhaspl:byebyeConnection closed by foreign host.