大家好!
我是新的python网络编程。
我的开发环境如下。
- Windows 7的
- 的Python 3.4
我与 “Python的网络编程食谱” 学习。在本书中,有一个示例ThreadingMixIn套接字服务器应用程序。
本书的代码是用Python 2.7编写的。所以我修改了python 3.4。 代码是...
# coding: utf-8
import socket
import threading
import socketserver
SERVER_HOST = 'localhost'
SERVER_PORT = 0 # tells the kernel to pick up a port dynamically
BUF_SIZE = 1024
def client(ip, port, message):
""" A client to test threading mixin server"""
# Connect to the server
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((ip, port))
try:
message = bytes(message, encoding="utf-8")
sock.sendall(message)
response = sock.recv(BUF_SIZE)
print("Client received: {0}".format(response))
finally:
sock.close()
class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):
""" An example of threaded TCP request handler """
def handle(self):
data = self.request.recv(1024)
current_thread = threading.current_thread()
response = "{0}: {0}".format(current_thread.name, data)
response = bytes(response, encoding="utf-8")
self.request.sendall(response)
class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
"""Nothing to add here, inherited everything necessary from parents"""
pass
if __name__ == "__main__":
# Run server
server = ThreadedTCPServer((SERVER_HOST, SERVER_PORT),
ThreadedTCPRequestHandler)
ip, port = server.server_address # retrieve ip address
# Start a thread with the server -- one thread per request
server_thread = threading.Thread(target=server.serve_forever)
# Exit the server thread when the main thread exits
server_thread.daemon = True
server_thread.start()
print("Server loop running on thread: {0}".format(server_thread))
# Run clients
client(ip, port, "Hello from client 1")
client(ip, port, "Hello from client 2")
client(ip, port, "Hello from client 3")
此代码完美无缺。每个客户的请求都由新线程处理。当客户的请求结束时,程序结束。
我想让服务器永远服务。因此,当附加客户端的请求到来时,服务器会将其响应发送给该客户端。
我该怎么办?
谢谢你阅读我的问题。
P.S:哦,多一个。我总是在我的堆栈溢出帖子的顶部打个招呼。预览中显示正常。但是,当帖子保存后,第一行总是消失。请任何人都帮我XD
我没有安装python3,但我没有看到任何可能导致服务器停止的事情。你确定程序退出吗?只是因为你看到python输入提示符>>>并不意味着程序已经停止运行。尝试在底部添加'server_thread.join()'。编辑:我只是意识到你正在使服务器线程守护进程。不要这样做。它在那里说“**主线程退出**时退出服务器线程”。 –
@Rawing,我使用PyCharm作为Python IDE。当代码运行时,它会向我显示此消息。 “处理完成退出码0”。我按照你的建议添加了server_thread.join(),它起作用了!它永远服务! – passion053
@饶,我的天啊!拉你是对的!我刚刚评论了“server_thread.daemon = True”,服务器永远服务没有“server_thread.join()”谢谢拉威。你救了我整整一天!XD – passion053