用twisted，用工厂管理连接，每个连接建立transport. 使用简单方便！参看下面代码：
# Copyright (c) The PyAMF Project.
# See LICENSE.txt for details.
“””
Example socket server using Twisted.
@see: U{Documentation for this example<http://pyamf.org/tutorials/actionscript/socket.html>}
@since: 0.1
“””
try:
import twisted
except ImportError:
print “This examples requires the Twisted framework. Download it from http://twistedmatrix.com”
raise SystemExit
from twisted.internet.protocol import Protocol, Factory
from twisted.internet import reactor
from datetime import datetime
import pyamf
class TimerProtocol(Protocol):
interval = 1.0 # 客户端链接到server后，server往客户端发送时间的间隔
encoding = pyamf.AMF3
timeout = 20 #客户端链接到server后多少时间不操作就断开链接的timeout
def __init__(self):
self.started = False
#设置编码器
self.encoder = pyamf.get_encoder(self.encoding)、
#设置server端将数据编码成amf后存放的缓存地址
self.stream = self.encoder.stream
def connectionLost(self, reason):
Protocol.connectionLost(self, reason)
print “locst connection:”,reason
#客户端没断开一个链接，总连接数-1
self.factory.number_of_connections -= 1
print “number_of_connections:”,self.factory.number_of_connections
def connectionMade(self):
#如果服务器连接数超过最大连接数，拒绝新链接建立
if self.factory.number_of_connections >= self.factory.max_connections:
self.transport.write(‘Too many connections, try again later’)
self.transport.loseConnection()
return
#总连接数+1
self.factory.number_of_connections += 1
self.timeout_deferred = reactor.callLater(TimerProtocol.timeout, self.transport.loseConnection)
def dataReceived(self, data):
#去除server收到client数据两端的空格
data = data.strip()
#如果收到的是’start’命令
if data == ‘start’:
# start sending a date object that contains the current time
if not self.started:
self.start()
elif data == ‘stop’: