python 扭曲的简单服务器客户端答案

【问题标题】：python twisted simple server clientpython 扭曲的简单服务器客户端
【发布时间】：2012-12-09 16:13:51
【问题描述】：

我正在尝试构建一个简单的“每日报价”服务器和客户端，该服务器和客户端是从扭曲的教程文档修改而来的。我希望从客户那里打印“当日报价”以证明沟通。但是，据我所知，客户端没有连接。这是我的代码。

服务器

from twisted.python import log
from twisted.internet.protocol import Protocol
from twisted.internet.protocol import Factory
from twisted.internet.endpoints import TCP4ServerEndpoint
from twisted.internet import reactor

class QOTD(Protocol):
    def connectionMade(self):
        self.transport.write("An apple a day keeps the doctor away\r\n") 
        self.transport.loseConnection()

class QOTDFactory(Factory):
    def buildProtocol(self, addr):
        return QOTD()

# 8007 is the port you want to run under. Choose something >1024
endpoint = TCP4ServerEndpoint(reactor, 8007)
endpoint.listen(QOTDFactory())
reactor.run()

客户

import sys
from twisted.python import log
from twisted.internet import reactor
from twisted.internet.protocol import Factory, Protocol
from twisted.internet.endpoints import TCP4ClientEndpoint

class SimpleClient(Protocol):
    def connectionMade(self):
        log.msg("connection made")
        #self.transport.loseConnection()

    def lineReceived(self, line):
        print "receive:", line

class SimpleClientFactory(Factory):
    def buildProtocol(self, addr):
        return SimpleClient()

def startlog():
    log.startLogging(sys.stdout)

point =  TCP4ClientEndpoint(reactor, "localhost", 8007)
d = point.connect(SimpleClientFactory)
reactor.callLater(0.1, startlog)
reactor.run()

【问题讨论】：

标签： python networking network-programming twisted

【解决方案1】：

将 SimpleClientFactory 的实例，而不是类本身传递给 point.connect()
如果您使用lineReceived，则从 twisted.protocol.basic.LineReceiver 子类 SimpleClient 而不是 Protocol
对endpoint.listen和point.connect的结果调用addErrback来处理错误

【讨论】：

它是 LineReceiver 的子类，使其工作。谢谢！