PythonSocket-缺少最后一個符號

所以，我創建了客戶端和服務器唱套接字。
一切正常，但我剛剛使用 MySQL 資料庫中的字串破壞了它。

服務器：

import socket
import threading


PORT = 9696
SERVER = "localhost"
ADDR = (SERVER, PORT)
FORMAT = 'utf-8'

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(ADDR)


def handle_client(conn):
    while True:
        actual_size = int(conn.recv(30).decode(FORMAT).replace("#", ""))
        size = int(actual_size / 1024)
        rest_msg = actual_size - (size * 1024)
        received_message = ""
        for chunk in range(size):
            received_message  = conn.recv(1024).decode(FORMAT)
        received_message  = conn.recv(rest_msg).decode(FORMAT)
        print(rest_msg)
        print(len(received_message))


def start():
    server.listen()
    while True:
        conn, addr = server.accept()
        thread = threading.Thread(target=handle_client, args=(conn,))
        thread.start()


start()

客戶：

import socket
import time

HEADER = 64
PORT = 9696
FORMAT = 'utf-8'
SERVER = "localhost"
ADDR = (SERVER, PORT)

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


def send(msg):
    client.send(msg.encode("utf-8"))


msg_to_send = "Some random message"

time.sleep(3)
for i in range(1000):
    send(str(len(msg_to_send))   ("#" * (30 - len(str(len(msg_to_send))))   msg_to_send))

while True:
    pass

如果我msg_to_send用以下文字替換：

[('index', 'bigint(20)', 'YES', 'MUL', None, ''), ('LP', 'text', 'YES', '', None, ''), (' NR-a', 'text', 'YES', '', None, ''), ('LITERA-a', 'text', 'YES', '', None, ''), ('MUFA-a', 'double', 'YES', '', None, ''), ('UWAGI-a', 'text', 'YES', '', None, ''), ('TUBY-a', 'double', 'YES', '', None, ''), ('DATA1-a', 'text', 'YES', '', None, ''), ('DATA2-a', 'text', 'YES', '', None, ''), ('SPAWY-i', 'text', 'YES', '', None, ''), ('SPAWY_DAC-i', 'text', 'YES', '', None, ''), ('LOG-a', 'text', 'YES', '', None, ''), ('SPLIT1X4-i', 'text', 'YES', '', None, ''), ('SPLIT1X8-i', 'text', 'YES', '', None, ''), ('SPLIT1X16-i', 'text', 'YES', '', None, ''), ('ADAPTERY SIMPLE-i', 'double', 'YES', '', None, ''), ('ADAPTERY DUPLEX-i', 'double', 'YES', '', None, ''), ('PIGTAIL-i', 'double', 'YES', '', None, ''), ('OLT-a', 'double', 'YES', '', None, ''), ('NEXT-a', 'double', 'YES', '', None, ''), ('ODNOGA_1-a', 'double', 'YES', '', None, ''), ('ODNOGA_2-a', 'double', 'YES', '', None, ''), ('ODNOGA_3-a', 'double', 'YES', '', None, ''), ('ODNOGA_4-a', 'double', 'YES', '', None, ''), ('DROP30-i', 'double', 'YES', '', None, ''), ('DROP50-i', 'double', 'YES', '', None, ''), ('DROP70-i', 'double', 'YES', '', None, ''), ('DROP80-i', 'double', 'YES', '', None, ''), ('DROP100-i', 'double', 'YES', '', None, ''), ('DROP120-i', 'double', 'YES', '', None, ''), ('DROP150-i', 'double', 'YES', '', None, ''), ('DROP200-i', 'double', 'YES', '', None, ''), ('MA?PKI-i', 'double', 'YES', '', None, '')]

它丟失了]，所以如果下一條訊息將被轉換為 int 以便它可以讀取下一條訊息的長度，它只會拋出一個錯誤，例如]6str。我完全不知道為什么會這樣。我嘗試使用與資料庫不同的表并更改緩沖區大小，但它仍然在某處吃東西。服務器中有兩個列印件。首先顯示接收時使用的緩沖區。第二個用于顯示它實際收到了多少個符號，并且它始終有效，但不適用于該字串。

If I didn't cover something here or some important info, please write in comment and I will provide it.

uj5u.com熱心網友回復：

您的問題是您的生產字串包含一個非 ASCII 字符，當您編碼為 UTF-8 時，它會轉換為多個位元組。在您的長度傳輸中不考慮這些多個位元組。您需要在轉換后獲取長度。因此，擺脫“發送”功能并執行以下操作：

msg_to_send = msg_to_send.encode('utf-8')
for i in range(1000):
    print(len(msg_to_send))
    prefix = (str(len(msg_to_send))   "#"*30)[:30].encode('utf-8')
    client.send(prefix   msg_to_send)

while True:
    time.sleep(5)

標籤：python python-3.x sockets

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