开发环境
1.Visual Studio Code
安装python extension,我使用的本地python版本是3.6.6，也可以安装2.7随时进行切换
2.Twisted安装
Windows环境下需先安装pywin32包
pip install pywin32
安装成功后继续安装Twisted包，安装的同时会自动安装zope.interface
pip install twisted
Twisted基础
Twisted的三个基础模块：Protocol,ProtocolFactory,Transport.
Protocol:实现协议内容，即通信的内容协议
ProtocolFactory：生成协议的工厂
Transport：数据的收发处理
广播服务器代码
# coding=utf-8
from twisted.internet.protocol import Protocol
from twisted.internet.protocol import Factory
from twisted.internet.endpoints import TCP4ServerEndpoint
from twisted.internet import reactor
clients = []
class Spreader(Protocol):
def __init__(self, factory):
self.factory = factory
def connectionMade(self):
self.factory.numProtocols = self.factory.numProtocols + 1
self.transport.write(
(u"欢迎来到Spread Site, 你是第%s个客户端用户!\n" % (self.factory.numProtocols)).encode('utf-8')
)
print("new connect: %d" % (self.factory.numProtocols))
clients.append(self)
def connectionLost(self, reason):
self.factory.numProtocols = self.factory.numProtocols - 1
clients.remove(self)
print ("lost connect: %d" % (self.factory.numProtocols))
def dataReceived(self, data):
if data == "close":
self.transport.loseConnection()
for client in clients:
if client != self:
client.transport.write(data)
else:
print (data)
class SpreadFactory(Factory):
def __init__(self):
self.numProtocols = 0
def buildProtocol(self, addr):
return Spreader(self)
endpoint = TCP4ServerEndpoint(reactor, 8007)
endpoint.listen(SpreadFactory())
reactor.run()
客户端代码
# coding=utf-8
from twisted.internet.protocol import Protocol, ClientFactory
class Echo(Protocol):
def __init__(self):
self.connected = False
def connectionMade(self):
self.connected = True
def connectionLost(self, reason):
self.connected = False
def dataReceived(self, data):
print (data.decode("utf-8"))
class EchoClientFactory(ClientFactory):
def __init__(self):
self.protocol = None
def startedConnecting(self, connector):
print ("Start to Connect...")
def buildProtocol(self, addr):
print ("Connected...")
self.protocol = Echo()
return self.protocol
def clientConnectionLost(self, connector, reason):
print ("Lost connection. Reason: ", reason)
def clientConnectionFailed(self, connector, reason):
print ("Connection is failed, Reason: ", reason)
from twisted.internet import reactor
import threading
import time
import sys
import datetime
bStop = False
def routine(factory):
while not bStop:
if factory.protocol and factory.protocol.connected:
factory.protocol.transport.write(("hello, I'm %s %s" % (
sys.argv[0], datetime.datetime.now()
)).encode('utf-8'))
print (sys.argv[0], datetime.datetime.now())
time.sleep(5)
host = "127.0.0.1"
port = 8007
factory = EchoClientFactory()
reactor.connectTCP(host, port, factory)
threading.Thread(target=routine, args=(factory,)).start()
reactor.run()
bStop = True
演示效果
