Python TCP服務器

我寫了一個簡單的Python 3 TCP多線程服務器和telnet到它。所有似乎工作，直到我去關閉telnet連接。當我關閉telnet連接時^]然後控制+ d退出telnet服務器重複打印''。

有沒有什麼微不足道的，我在這裏失蹤，以防止這種行爲。

import socket 
from threading import Thread 
from socketserver import ThreadingMixIn 

# Multithreaded Python server : TCP Server Socket Thread Pool 
class ClientThread(Thread): 

    def __init__(self,ip,port): 
     Thread.__init__(self) 
     self.ip = ip 
     self.port = port 
     print ("[+] New server socket thread started for " + ip + ":" + str(port)) 

    def run(self): 
     while True : 
      data = conn.recv(2048) 
      #data = "Echo data: " + data.decode() 
      print ("Server received data: ", data) 
      conn.send(data) # echo 

# Multithreaded Python server : TCP Server Socket Program Stub 
TCP_IP = '0.0.0.0' 
TCP_PORT = 2004 
BUFFER_SIZE = 1024 # Usually 1024, but we need quick response 

tcpServer = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
tcpServer.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 
tcpServer.bind((TCP_IP, TCP_PORT)) 
threads = [] 

while True: 
    tcpServer.listen(4) 
    print ("Multithreaded Python server : Waiting for connections from TCP clients...") 
    (conn, (ip,port)) = tcpServer.accept() 
    newthread = ClientThread(ip,port) 
    newthread.start() 
    threads.append(newthread) 

for t in threads: 
    t.join() 



Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received data: b'' 
Server received da

來源

2017-07-18 Arnab C.

您的客戶端線程似乎無限循環。它會高興地繼續（試圖）從關閉的連接中讀取。您應該添加一個檢查，從讀取的數據實際上包含字節。否則，連接關閉。

於是，經過

data = conn.recv(2048)

地址：

if not data: break

來源

2017-07-18 15:37:38

Python TCP服務器

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