[英]Implement Client which call to server every x secs on Twisted
我正在嘗試創建客戶端應用程序(使用雙絞線),它將向服務器發送一些數據(始終相同)。 我需要這個來檢查服務器上的操作狀態。 但是我不知道如何使用Twisted做到這一點。
from twisted.internet.protocol import Protocol, ClientFactory
from twisted.internet import task
from sys import stdout
from twisted.internet import reactor
host = 'localhost'
port = 8007
class InstProtocol(Protocol):
def __init__(self):
with open('install_qeue.json','r') as jsonfile:
self.json_data = jsonfile.read()
jsonfile.close()
self.json_data_status = self.json_data.replace('"end": 1', '"end": 2')
def connectionMade(self):
self.transport.write(self.json_data)
def dataReceived(self, data):
stdout.write(data)
def sendMsg(self):
self.transport.write(self.json_data_status)
class InstFactory(ClientFactory):
protocol = InstProtocol
def __init__(self):
self.lc = task.LoopingCall(self.protocol.sendMsg)
self.lc.start(10)
def startedConnecting(self, connector):
print 'Started to connect.'
def buildProtocol(self, addr):
print 'Connected.'
return InstProtocol()
def clientConnectionLost(self, connector, reason):
print 'Lost connection. Reason:', reason
def clientConnectionFailed(self, connector, reason):
print 'Connection failed. Reason:', reason
reactor.connectTCP(host, port, InstFactory())
reactor.run()
錯誤:
Unhandled error in Deferred:
Traceback (most recent call last):
File ".\client.py", line 97, in <module>
reactor.connectTCP(host, port, InstFactory())
File ".\client.py", line 82, in __init__
self.lc.start(10)
File "C:\Python27\lib\site-packages\twisted\internet\task.py", line 168, in start
self()
File "C:\Python27\lib\site-packages\twisted\internet\task.py", line 213, in __call__
d = defer.maybeDeferred(self.f, *self.a, **self.kw)
--- <exception caught here> ---
File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 150, in maybeDeferred
result = f(*args, **kw)
exceptions.TypeError: unbound method sendMsg() must be called with InstProtocol instance as first argument (got nothing
instead)
Started to connect.
我該如何解決,請指教。
好,
在這種情況下,每次您收到來自服務器的消息時,您都會在30秒內做出反應並發送另一個消息。 每個聯系服務器都收到了您的請求-它將立即發送響應。 這就是如何處理time.sleep()和while()循環的方法。
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