7

我正在编写一个简单的基于套接字的聊天程序，它允许服务器向客户端发送和接收消息。客户端可以向服务器发送消息，但是当我尝试从服务器发送消息时，它会崩溃，说“文件”对象具有属性“recv”。

服务器.py

import socket
import os
import select
import sys

def prompt():
    sys.stdout.write('<You> ')
    sys.stdout.flush()

try:
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except:
    print 'Failed to create socket'
    sys.exit()

PORT = 9050
HOST = '127.0.0.1'
RECV_BUFFER = 4096

server_socket.bind((HOST, PORT))
server_socket.listen(10)

input = [server_socket, sys.stdin]

print 'Chat Program'
prompt()

while 1:

    inputready, outputready, exceptready = select.select(input,[],[])

    for sock in inputready:

        if sock == server_socket:
            client, address = server_socket.accept()
            input.append(client)
            #data = sock.recv(RECV_BUFFER)
            #if data:
                #sys.stdout.write(data)
        else:
            data = sock.recv(RECV_BUFFER)
            if data:
                sys.stdout.write(data)
            else:
                msg = sys.stdin.readline()
                server_socket.send('\r<Server>: ' + msg)
                prompt()



server_socket.close()

客户端.py

import socket
import os
import select
import sys

def prompt():
   sys.stdout.write('<You> ')
   sys.stdout.flush()

HOST = '127.0.0.1'
PORT = 9050
try:
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except socket.error:
    print 'Failed to create socket'
    sys.exit()

s.connect((HOST, PORT))

print 'Connected to remote host. Start sending messages'
prompt()

while 1:

    socket_list = [sys.stdin, s]

    read_sockets, write_sockets, error_sockets = select.select(socket_list, [], [])

    for sock in read_sockets:
        if sock == s:
            data = sock.recv(4096)
            if not data:
                print '\nDisconnected from chat server'
                sys.exit()
            else:
                sys.stdout.write(data)
                prompt()
        else:
            msg = sys.stdin.readline()
            s.send('\r<Client>: ' + msg)
            prompt()
4

2 回答 2

4

好吧，在你的服务器上你正在做（缩写）

input = [server_socket, sys.stdin]
inputready, outputready, exceptready = select.select(input,[],[])
for sock in inputready:
    if sock == server_socket:
        ...
    else:
        data = sock.recv(RECV_BUFFER)

因此，当某物进入时sys.stdin，它不会server_socket进入else并尝试进入recv，但它不是套接字。 stdin应该使用readnot recv。像下面这样的结构对我来说最有意义。

if sock == server_socket:
    ...
elif sock == sys.stdin:
    data = sock.readline()
    for s in input:
        if s not in (server_socket, sys.stdin):
            s.send(data)
else:
    ...
于 2013-05-13T20:38:59.967 回答
0

我从下面提供的链接中尝试了类似类型的程序，但select()Windows 操作系统不支持问题。

File objects on Windows are not acceptable, but sockets are. On
Windows, the underlying select() function is provided by the WinSock
library, and does not handle file descriptors that don’t originate
from WinSock.

http://www.binarytides.com/code-chat-application-server-client-sockets-python/

于 2015-06-11T10:38:53.987 回答