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首页 > 解决方案 > 可以使用 Python 中的 Pickle 和套接字模块将数据对象从客户端发送到服务器吗？

python - 可以使用 Python 中的 Pickle 和套接字模块将数据对象从客户端发送到服务器吗？

问题描述

我希望我的客户端程序将对象发送到服务器。通过搜索互联网，在所有示例中，我都看到数据对象是由服务器发送到客户端的，但我想做相反的事情。下面我分享客户端代码和服务器代码。我已经能够修改套接字客户端代码，但我在修改服务器代码时遇到了困难。因为，我是 python 编程的新手，而且我正处于最后期限，非常感谢您的帮助。

以下是代码：

服务器代码::

import socket



def server_program():

    # get the hostname
    host = socket.gethostname()
    port = 5000  # initiate port no above 1024
    server_socket = socket.socket()  # get instance
    # look closely. The bind() function takes tuple as argument
    server_socket.bind((host, port))  # bind host address and port together

    # configure how many client the server can listen simultaneously
    server_socket.listen(2)
    conn, address = server_socket.accept()  # accept new connection
    print("Connection from: " + str(address))
    while True:
        # receive data stream. it won't accept data packet greater than 1024 bytes
        data = conn.recv(1024).decode()
        if not data:
            # if data is not received break
            break
        print("from connected user: " + str(data))
        data = input(' -> ')
        conn.send(data.encode())  # send data to the client

    conn.close()  # close the connection


if __name__ == '__main__':
    server_program()

这是用pickle修改的客户端代码::

import socket
import pickle


def client_program():
    host = socket.gethostname()  # as both code is running on same pc
    port = 5000  # socket server port number

    client_socket = socket.socket()  # instantiate
    client_socket.connect((host, port))  # connect to the server

    message = input(" -> ")  # take input

    while message.lower().strip() != 'bye':
        client_socket.send(message.encode())  # send message
        #data = client_socket.recv(1024).decode()  # receive response

        #print('Received from server: ' + data)  # show in terminal

        wastebin_attr = {1:"Wastebin_serial_number", 2:"Wastebin_type", 3:"Status" , 4:"Action", 5:"Zone", 6:"Latitude", 7:"Longitude"}
        mssg = pickle.dumps(wastebin_attr)
        print("from connected user: " + mssg)
        message = input(" -> ")  # again take input

    client_socket.close()  # close the connection


if __name__ == '__main__':
    client_program()

标签： pythonserverconnectionclient

解决方案

使用 pickle 模块将数据从客户端发送到服务器：

data = pickle.dumps(data)
client_socket.send(data)

要在服务器端接收数据，请使用：

data = conn.recv(1024)
data = pickle.loads(data)

您还可以通过切换 client_socket 和 conn 部分来使用它从服务器发送到客户端

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