Question

以下Python代码在两台计算机之间打开TCP连接，传输短字符串消息，然后终止连接。但是由于某种原因，数据无法通过。连接似乎正常，但数据未通过。我在做什么错了？

服务器：

#! /usr/bin/python3

import socket
import sys

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_address = (IP, 10000)
sock.bind(server_address)
sock.listen(1)
print('starting up on %s port %s' % server_address)
while True:
    # Wait for a connection
    print('waiting for a connection')
    connection, client_address = sock.accept()
    try:
        while True:
            data = connection.recv(28)
            print('received "%s"' % data)
            if data:
                print(data)
            else:
                print('no more data from', client_address)
                break
    finally:
        # Clean up the connection
        connection.close()

客户：

def Data_Out(Status):
        Exists =  os.path.exists('/run/thermostat/outsideIP')
        if Exists:
                with open("/run/thermostat/outsideIP", "r") as f:
                        IP = f.read()
                sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                # Connect the socket to the port on the server
                server_address = (IP, 10000)
                try:
                        socket.create_connection(server_address, timeout=10)
                except socket.timeout as err:
                        return err
                if Status == 0:
                        message = '[1, 0, 0, 1, 1, 1, 1, 1]\n'
                elif Status == 1:
                        message = '[0, 1, 0, 1, 1, 1, 1, 1]\n'
                else:
                        message = '[0, 0, 0, 0, 0, 0, 0, 0]\n'
                try:
                        sock.sendall(message)
                finally:
                        sock.close()
                        return 0
        else:
                return -1

服务器响应：

HVAC-Relay1:/usr/local/sbin# TClient.py 
starting up on 192.168.1.34 port 10000
waiting for a connection
received "b''"
no more data from ('192.168.1.28', 46380)
waiting for a connection

客户响应：

pi@Thermostat-Office:/usr/local/sbin $ DISPLAY=:0 Relay_Sync.py 
0

Answer 1

问题是套接字需要字节流，而不是字符串：

import pickle
        data = pickle.dumps(message)
        sock.sendall(data)

数据未接收

1 个答案: