如何让服务器接受来自多个端口的连接？

Question

如何创建一个简单的服务器(简单如接受连接并打印到终端接收的任何内容)接受来自多个端口或端口范围的连接？

我是否必须使用多个线程,每个绑定调用一个.还是有其他解决方案吗？

简单的服务器看起来像这样.

def server():
import sys, os, socket

port = 11116
host = ''
backlog = 5 # Number of clients on wait.
buf_size = 1024

try:
    listening_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    listening_socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) 
    listening_socket.bind((host, port)) 
    listening_socket.listen(backlog)
except socket.error, (value, message):
    if listening_socket:
        listening_socket.close()
    print 'Could not open socket: ' + message
    sys.exit(1)

while True:
    accepted_socket, adress = listening_socket.accept()

    data = accepted_socket.recv(buf_size)
    if data:
        accepted_socket.send('Hello, and goodbye.')
    accepted_socket.close()

server()

编辑:这是一个如何完成它的例子.感谢大家.

import socket, select

def server():
import sys, os, socket

port_wan = 11111
port_mob = 11112
port_sat = 11113

sock_lst = []
host = ''
backlog = 5 # Number of clients on wait.
buf_size = 1024

try:
    for item in port_wan, port_mob, port_sat:
        sock_lst.append(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
        sock_lst[-1].setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) 
        sock_lst[-1].bind((host, item)) 
        sock_lst[-1].listen(backlog)
except socket.error, (value, message):
    if sock_lst[-1]:
        sock_lst[-1].close()
        sock_lst = sock_lst[:-1]
    print 'Could not open socket: ' + message
    sys.exit(1)

while True:
    read, write, error = select.select(sock_lst,[],[])

    for r in read:
        for item in sock_lst:
            if r == item:
                accepted_socket, adress = item.accept()

                print 'We have a connection with ', adress
                data = accepted_socket.recv(buf_size)
                if data:
                    print data
                    accepted_socket.send('Hello, and goodbye.')
                accepted_socket.close()

server()

Answer 1

我不是蟒蛇人,但你感兴趣的功能是"选择".这将允许您观察多个套接字,并在其中任何一个发生活动时发生故障.

这是一个使用select的python示例.