【发布时间】:2023-03-30 01:40:02
【问题描述】:
假设我在 python 中有一个多客户端服务器套接字和一个客户端套接字。
服务器:(您不必阅读所有服务器的代码,只需知道它是一个多客户端服务器。
import socket, select
CONNECTION_LIST = [] # list of socket clients
RECV_BUFFER = 4096 # Advisable to keep it as an exponent of 2
PORT = 5000
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# this has no effect, why ?
RealServerIP = ? # I want to have a real server ip which would let me connect to the server from any computer around the globe...
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind((RealServerIP, PORT))
server_socket.listen(10)
# Add server socket to the list of readable connections
CONNECTION_LIST.append(server_socket)
print "Chat server started on port " + str(PORT)
while 1:
# Get the list sockets which are ready to be read through select
read_sockets,write_sockets,error_sockets = select.select(CONNECTION_LIST,[],[])
for sock in read_sockets:
#New connection
if sock == server_socket:
# Handle the case in which there is a new connection recieved through server_socket
sockfd, addr = server_socket.accept()
CONNECTION_LIST.append(sockfd)
print "Client (%s, %s) connected" % addr
#Some incoming message from a client
else:
# Data recieved from client, process it
try:
#In Windows, sometimes when a TCP program closes abruptly,
# a "Connection reset by peer" exception will be thrown
data = sock.recv(RECV_BUFFER)
# echo back the client message
if data:
sock.send(data)
# client disconnected, so remove from socket list
except:
broadcast_data(sock, "Client (%s, %s) is offline" % addr)
print "Client (%s, %s) is offline" % addr
sock.close()
CONNECTION_LIST.remove(sock)
continue
server_socket.close()
(来自http://www.binarytides.com/code-chat-application-server-client-sockets-python/ 的示例)。
还有 3 个客户,它们是您能想象到的最简单的客户:
import socket # imports module named 'socket'
RealServerIP = ? # I need your help here.... read the continuation
my_socket = socket.socket() # creates new socket named 'my_socket'
my_socket.connect((RealServerIP, 5000)) # connects to the server
my_socket.send(str) # sends string to the server
data = my_socket.recv(1024)
print data # prints data
my_socket.close()
我想检查我的服务器是否可以同时与这 3 个客户端通信。所以我想让我的服务器成为一个公共服务器,比如 Facebook 的网络服务器等。 因此,世界各地的任何计算机都可以连接到它。
所以,我试图弄清楚如何使用与我的本地主机无关的特定 IP 和 PORT 在线存储我的 python 服务器套接字,我希望它是真实的!就像你知道的任何聊天/网络服务器一样..
【问题讨论】:
-
你需要绑定你的ip地址而不是环回接口。或在您的路由器/防火墙处转发到服务器绑定到的任何地址/端口。
-
谢谢。可以举个例子吗?