如何將請求從服務器斷開連接發送到所有客戶端并且服務器仍然存在（python套接字）

當我斷開服務器中的所有客戶端時，服務器不會繼續運行。我該怎么做活服務器

import socket, threading, tkinter

服務器

import socket, threading, tkinter
import time

def sendDisconnectAll(my_clients):
    for client in my_clients:
        conn = client[0]
        conn.sendall('Disconnect'.encode('utf8'))
        conn.close()
    
def handle_client(conn, addr):
    while True:
        try:
            request_from_clients = conn.recv(1024).decode('utf8') #sample request
            print(request_from_clients)
            if request_from_clients == 'SignIn':
                conn.sendall('Accept Sign in'.encode('utf8'))
        except:
            print('Client has been shutdown')
            break

my_clients = []
def live_server():
    global thr
    global s
    while True:
        try:
            conn, addr = s.accept()
            my_clients.append((conn, addr))
            thr = threading.Thread(target=handle_client, args=(conn, addr))
            thr.daemon = True
            thr.start()
        except:
            print("Error")

HOST = '127.0.0.1'
PORT = 8000
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen()
print('HOST: ', HOST)
print('PORT: ', PORT)

thr = threading.Thread(target=live_server)
thr.daemon = True
thr.start()
count_time = time.time()
while True:
    now = time.time()
    if (int(now - count_time)   1) % 10 == 0:       #Disconnect all clients after 10 seconds
        count_time = now
        request = 'Disconnect'
        print('Disconnect all')
        sendDisconnectAll(my_clients)

客戶

import socket, threading
import tkinter as tk
from tkinter import *

def signIn():
    global client
    request = 'SignIn'
    try:
        client.sendall(request.encode('utf8'))
        client.recv(1024).decode('utf8')
    except:
        print('Server has been shutdown')

IP = input("Enter IP: ")
PORT = input("Enter PORT: ")

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

try:
    client.connect((IP, int(PORT)))
except:
    print("Can't connect to server")
    client.close()
def live_client():
    global client
    while True:
        print(client.recv(1024).decode('utf8'))
thr = threading.Thread(target=live_client)
thr.daemon = True
thr.start()
app = Tk()
app.title('CLIENT')
but_connect = tk.Button(app, text="SIGN IN",
                            width=20, command=signIn)
but_connect.pack(pady=6)
app.mainloop()

謝謝！

uj5u.com熱心網友回復：

問題是您只將客戶添加到my_clients串列中。讓我們看看在服務器中發生了什么：

• 服務器啟動
• 它接收一個客戶并將其添加到 my_clients
• 在下一次斷開所有操作時，該客戶端的套接字已關閉，但該客戶端仍保留在串列中
• 在以下斷開所有操作時，服務器的主執行緒嘗試寫入關閉的套接字并引發例外
• 由于所有其他執行緒都是守護執行緒，因此應用程式結束。

my_clients關閉所有客戶端套接字后，您必須清除串列：

def sendDisconnectAll(my_clients):
    for client in my_clients:
        conn = client[0]
        conn.sendall('Disconnect'.encode('utf8'))
        conn.close()
    my_clients.clear()

當心：我沒有看客戶端代碼......

標籤：Python 插座 特金特

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