from twisted.internet.protocol import Factory,Protocol
from twisted.internet import reactor
class ChatServer(Protocol):
def connectionMade(self):
print("A Client Has Connected")
factory = Factory()
reactor.listenTCP(80,factory)
print("Chat Server Started")
reactor.run()
上面的代码运行成功。但是当我尝试打开 TCP(telnet localhost 80) 时。
发生错误:
Unhandled Error
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\twisted\python\log.py", line 69, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "C:\Python27\lib\site-packages\twisted\python\context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "C:\Python27\lib\site-packages\twisted\python\context.py", line 81, in callWithContext
return func(*args,**kw)
File "C:\Python27\lib\site-packages\twisted\internet\selectreactor.py", line 150, in _doReadOrWrite
why = getattr(selectable, method)()
--- <exception caught here> ---
File "C:\Python27\lib\site-packages\twisted\internet\tcp.py", line 718, in doRead
protocol = self.factory.buildProtocol(self._buildAddr(addr))
File "C:\Python27\lib\site-packages\twisted\internet\protocol.py", line 104, in buildProtocol
p = self.protocol()
exceptions.TypeError: 'NoneType' object is not callable
如果有人知道解决方案,请帮助我。我是扭曲的新手。
最佳答案
class ChatServer(Protocol):
def connectionMade(self):
print("A Client Has Connected")
factory = Factory()
reactor.listenTCP(80,factory)
在此代码中,您尚未在 factory
和 ChatServer
之间建立任何关联。尝试插入这一行:
factory.protocol = ChatServer
在 Twisted 即将推出的(尚未发布)版本中,Factory
正在获取一个新的类方法,以使此设置更加容易。使用该版本,此示例会更短:
class ChatServer(Protocol):
def connectionMade(self):
print("A Client Has Connected")
reactor.listenTCP(80, Factory.forProtocol(ChatServer))
关于python - 当 TCP 服务器尝试接受来自扭曲的客户端的连接时,出现 "Unhandled Error",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17371792/