Python twisted reactor - 已经在使用的地址

Question

我正在按照教程http://www.raywenderlich.com/3932/how-to-create-a-socket-based-iphone-app-and-server在Mac OS X环境中使用套接字编程创建示例.

我正在使用post 80 for reactor.listenTCP(80,factory).当我运行server.py文件时,收到错误:

File "server.py", line 10, in <module>
    reactor.listenTCP(6, factory)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twisted/internet/posixbase.py", line 436, in listenTCP
    p.startListening()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twisted/internet/tcp.py", line 641, in startListening
    raise CannotListenError, (self.interface, self.port, le)
twisted.internet.error.CannotListenError: Couldn't listen on any:80: [Errno 48] Address already in use.

源代码如下:

from twisted.internet.protocol import Factory, Protocol
from twisted.internet import reactor

class IphoneChat(Protocol):
    def connectionMade(self):
        self.factory.clients.append(self)
        print "clients are ", self.factory.clients

    def connectionLost(self, reason):
        self.factory.clients.remove(self)

factory = Factory()
factory.protocol = IphoneChat
factory.clients = []
reactor.listenTCP(80, factory)
print "Iphone Chat server started"
reactor.run()

如果我正在使用另外的端口,如6等,它工作正常.我只是想知道,我怎样才能将端口80用于同一个应用程序.

Answer 1

打开Activity Monitor,搜索Python并终止进程.你可能搞砸了一次关闭服务器.

Answer 2

实际上,我刚刚遇到了这个问题.

这是我做的:

MacBook-Air:Desktop user$ sudo lsof -i:80
COMMAND  PID USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
Python  1276 root    3u  IPv4 ******      0t0  TCP *:http (LISTEN)
MacBook-Air:Desktop user$ sudo kill 1276
MacBook-Air:Desktop user$ sudo python server.py 
Iphone Chat server started

一切顺利.

Answer 3

对我来说,问题是apache已经在端口80上听了.似乎很多人谷歌通过这篇文章和其他有这个问题,但我没有看到这个特定的答案提供.这对我有用,所以我认为如果它有所帮助我会添加它:运行Mac/Mavericks但问题会出现在Apache默认运行的任何其他系统上......或者可能会忘记它正在运行.

难道

sudo lsof -i TCP:80 | grep LISTEN

拿到

httpd      20 root    4u  IPv6 0x1d12a12e12345b12      0t0  TCP *:http (LISTEN)
httpd     109 _www    4u  IPv6 0x1d12a12e12345b12      0t0  TCP *:http (LISTEN)
httpd     437 _www    4u  IPv6 0x1d12a12e12345b12      0t0  TCP *:http (LISTEN)
httpd     438 _www    4u  IPv6 0x1d12a12e12345b12      0t0  TCP *:http (LISTEN)
httpd     439 _www    4u  IPv6 0x1d12a12e12345b12      0t0  TCP *:http (LISTEN)

没有

sudo apachectl stop

之后服务器在端口80上工作得很好.