Python扭曲的客户端连接丢失 [英] Python Twisted Client Connection Lost
问题描述
我有这个扭曲的客户端,它与具有索引的扭曲服务器连接.我从命令行运行了此客户端.工作正常.现在,我对其进行了修改以使其可以循环运行(请参见main()
),以便可以继续查询.但是客户端仅运行一次.下次仅显示connection lost \n Connection lost - goodbye!
.
I have this twisted client, which connects with a twisted server having an index. I ran this client from command-line. It worked fine. Now I modified it to run in loop (see main()
) so that I can keep querying. But the client runs only once. Next time it simply says connection lost \n Connection lost - goodbye!
.
我在做什么错?在循环中,我重新连接到服务器,那是错的吗?
What am i doing wrong? In the loop I am reconnecting to the server, it that wrong?
from twisted.internet import reactor
from twisted.internet import protocol
from settings import AS_SERVER_HOST, AS_SERVER_PORT
# a client protocol
class Spell_client(protocol.Protocol):
"""Once connected, send a message, then print the result."""
def connectionMade(self):
self.transport.write(self.factory.query)
def dataReceived(self, data):
"As soon as any data is received, write it back."
if data == '!':
self.factory.results = ''
else:
self.factory.results = data
self.transport.loseConnection()
def connectionLost(self, reason):
print "\tconnection lost"
class Spell_Factory(protocol.ClientFactory):
protocol = Spell_client
def __init__(self, query):
self.query = query
self.results = ''
def clientConnectionFailed(self, connector, reason):
print "\tConnection failed - goodbye!"
reactor.stop()
def clientConnectionLost(self, connector, reason):
print "\tConnection lost - goodbye!"
reactor.stop()
# this connects the protocol to a server runing on port 8090
def main():
print 'Connecting to %s:%d' % (AS_SERVER_HOST, AS_SERVER_PORT)
while True:
print
query = raw_input("Query:")
if query == '': return
f = Spell_Factory(query)
reactor.connectTCP(AS_SERVER_HOST, AS_SERVER_PORT, f)
reactor.run()
print f.results
return
if __name__ == '__main__':
main()
推荐答案
您不太了解Twisted反应堆的工作原理.
You don't quite understand how the Twisted reactor works.
reactor.run()
正在启动反应堆的事件循环---这是一个永远"循环的阻塞调用.
reactor.run()
is starting up the reactor's event-loop --- it's a blocking call that loops "forever".
请参见 http://twistedmatrix.com/documents/10.2 .0/core/howto/reactor-basics.html 来获取与反应堆相关的各种主题.
See http://twistedmatrix.com/documents/10.2.0/core/howto/reactor-basics.html for various reactor-related topics.
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