从网上参考了一些代码，实现了一个Python实现的基于线程的socket server, 用来实现各种服务系统的原型。放在这里供以后参考。
#!/usr/bin/env python
import threading
import SocketServer
users = []
class MyTCPHandler(SocketServer.StreamRequestHandler):
def handle(self):
username = None
while True:
self.data = self.rfile.readline().strip()
cur_thread = threading.currentThread()
print "RECV from ", self.client_address[0]
cmd = self.data
if cmd == None or len(cmd) == 0:
break;
print cmd
# business logic here
try:
if cmd.startswith('echo'):
result = cmd[5:]
elif cmd.startswith('login'):
username = cmd[6:]
users.append({username:self.wfile})
result = username + ' logined.'
elif cmd == 'quit':
break
else:
result = 'error cmd'
self.wfile.write(result)
self.wfile.write('\n')
except:
print 'error'
break
try:
if username != None:
users.remove(username)
except:
pass
print username, ' closed.'
class ThreadedTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
pass
if __name__ == "__main__":
HOST, PORT = "localhost", 9999
server = ThreadedTCPServer((HOST, PORT), MyTCPHandler)
server_thread = threading.Thread(target=server.serve_forever)
server_thread.setDaemon(True)
server_thread.start()
server.serve_forever()
想请问下，为什么在线程里面调用了serve_forever，后面再调用一次这个函数。如果仅仅是为了不让进程结束，为什么不直接server_thread.setDaemon(False)?
同疑惑
根据官方文档的同样用法,并没有server.serve_forever()这一句.
# Start a thread with the server — that thread will then start one
# more thread for each request
server_thread = threading.Thread(target=server.serve_forever)
# Exit the server thread when the main thread terminates
server_thread.setDaemon(True)
server_thread.start()
from:http://docs.python.org/library/socketserver.html
应该改为
server_thread = threading.Thread(target=server.serve_forever())
#!/usr/bin/env python
#coding:utf-8
#Filename : ThraedingSocketServer.py
import sys,SocketServer
import threading
class MyTCPSocketServerHandler(SocketServer.BaseRequestHandler):
“””
The RequestHandler class for our server.
It is instantiated once per connection to the server, and must
override the handle() method to implement communication to the
client.
“””
def handle(self):
#self.request是处理来自客户端的原始类
self.data = self.request.recv(1024).strip()
print “{0} wrote :”.format(self.client_address[0])
print self.data
#收到数据后，回包
self.request.sendall(self.data.upper())
class ThreadedTCPServer(SocketServer.ThreadingMixIn,SocketServer.TCPServer):
pass
if __name__ == “__main__”:
HOST,PORT = “localhost”,8899
server = ThreadedTCPServer((HOST,PORT),MyTCPSocketServerHandler)
server_thread = threading.Thread(target=server.serve_forever())
server_thread.daemon = True
server_thread.start()
print “Server is loop running in “,server_thread.name
前几天刚开始练习 python,现在遇到验证码问题,网上查了下教程,了解到用python获取验证码还是不少.自己琢磨了整个晚上,用的是开源的打码工具tesseractor,但最后都没成功,不知道是什么问题
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