Python中的套接字编程返回错误10061或让我的服务器不接收数据

Question

正在学习套接字编程，我的两个代码之间出现了一个奇怪的问题，这取决于我尝试运行它们的 IP。

服务器：

import socket
import time
import datetime
import filecmp

HOST = 'localhost'
PORT = 9100

n = 1
x = 0
average_list = []

print('I am ready for any client side request \n')

file_comparison = "send.txt"

s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

s.bind((HOST,PORT))

s.listen(1)

conn, addr = s.accept()

while n <= 100:

  data = conn.recv(1024)

  file = 'receive1.txt';

  print('I am starting receiving file', file,'for the',n,'th time')

  a = datetime.datetime.now()

  f = open(file, 'wb')

  f.write(data)

  print('I am finishing receiving file', file,'for the',n,'th time')

  b = datetime.datetime.now()

  rawtime = b - a

  millidelta = rawtime * 1000

  average_list.append(millidelta)

  real_average = ((sum(average_list, datetime.timedelta(0,0))) / n)

  print('The time used in milliseconds to receive',file,'for the',n,'th time','is:',millidelta,'milliseconds')

  print('The average time to receive',file,'in milliseconds is:',real_average)

  if filecmp.cmp(file,file_comparison,shallow=False):

    x = x+1

  n=n + 1

f.close()

conn.close()

s.close()

print('I am done \n')

print('Total errors: ',x,'out of',n-1 )

客户：

import socket
import datetime
import time
import filecmp

#initializing host, port, filename, total time and number of times to send the file

host = 'localhost'

port = 9100

fileName = "send.txt"

n = 1

average_list = []

file_to_send = open(fileName,'rb')

while n <= 100:

    data = file_to_send.read(1024)

    s=socket.socket()

    s.connect((host,port))

    s.sendall(data)

    #reading the next 1024 bits

    print('I am connecting to server side:',host,'\n')

    print('I am sending file',fileName,'for the',n,'th time')

    a = datetime.datetime.now()

    print('I am finishing sending file',fileName,'for the',n,'th time')

    b = datetime.datetime.now()

    rawtime = b - a

    millidelta = rawtime * 1000

    average_list.append(millidelta)

    real_average = ((sum(average_list, datetime.timedelta(0,0))) / n)

    print('The time used in milliseconds to send',fileName,'for the',n,'th time','is:',millidelta,'milliseconds')

    print('The average time to send',fileName,'in milliseconds is:',real_average)

    n = n + 1

file_to_send.close()

s.close()



print('I am done')

在当前的迭代中，我的客户端代码只是在循环中运行，试图将 .txt 文件的数据发送到没有接收任何内容的服务器。如果我将 'localhost' 更改为我的实际 IP 地址，我会让服务器端代码在其 while 循环中循环，而客户端在 2 次迭代后放弃：

ConnectionRefusedError: [WinError 10061] 由于目标机器主动拒绝，无法建立连接

引用第 15 行的错误，“s.connect((host,port)) 是问题的原因。最终我卡住了，因为在我认为是两个正确的主机实现之间更改我的主机给了我极大的不同的结果，两者都没有按预期工作。

Answer 1

我认为该错误试图从其他时间告诉我们，套接字尝试连接的端口仍连接到另一个套接字。

所以我对为什么会发生这种情况的诊断是 s.close() 不在 while 循环中，所以它不断创建一个新套接字，然后尝试在同一个端口上连接。

编辑：我有机会在我身边运行它，如果我像这样将套接字的整个制作和绑定从循环中拉出来，它对我有用：

import socket
import datetime
import time
import filecmp

#initializing host, port, filename, total time and number of times to send the file

host = 'localhost'

port = 9100

fileName = "send.txt"

n = 1

average_list = []

file_to_send = open(fileName,'rb')

s=socket.socket()

s.connect((host,port))  
while n <= 100:
    data = file_to_send.read(1024)
    s.sendall(data)

    #reading the next 1024 bits

    print('I am connecting to server side:',host,'\n')

    print('I am sending file',fileName,'for the',n,'th time')

    a = datetime.datetime.now()

    print('I am finishing sending file',fileName,'for the',n,'th time')

    b = datetime.datetime.now()

    rawtime = b - a

    millidelta = rawtime * 1000

    average_list.append(millidelta)

    real_average = ((sum(average_list, datetime.timedelta(0,0))) / n)

    print('The time used in milliseconds to send',fileName,'for the',n,'th time','is:',millidelta,'milliseconds')

    print('The average time to send',fileName,'in milliseconds is:',real_average)

    n = n + 1
s.close()
file_to_send.close()

这绝对适用于我，发送文件 100 次，并收到 100 次，但我不知道在您的用例中，您是否需要它是一百个新套接字，而不是一个套接字发送 100 个成功获得的文件收到了。