在python中使用TCP将图像文件从客户端发送到服务器的程序

这是我的密码。目前，它传输大约75%的图像文件（在底部裁剪）。我想把它作为一个整体转移。我就是这样做的：

在服务器pc中创建名为“服务器”的文件夹

在客户端pc中创建名为“客户端”的文件夹

还包括要传输到同一“客户端”文件夹中的图像文件

客户端询问“要发送的文件名”，我在文件夹中键入图像文件的名称

无论哪一方问我“您想要接收的文件名”，我都会随意输入名称

文件传输并保存到服务器PC中的“服务器”文件夹中

client.py

from socket import *

def establish_connection(server_IP, server_port):
    client_socket = socket(AF_INET, SOCK_STREAM)
    client_socket.connect((server_IP, server_port))
    return client_socket

def send_recv_message(client_socket, message, buffer_size):
    file = open(filename,'rb')
    file_data = file.read(buffer_size)
    client_socket.send(file_data)
    text=print("File transfered")
    return text



server_IP = input("Please, enter server IP address: ")
server_port = input("Please, enter server TCP connection port number: ")
client_socket = establish_connection(server_IP, int(server_port))
print("Connection established\n")



filename= input(str("enter filename"))

received_message = send_recv_message(client_socket,filename,1048576)

from socket import *

def create_socket(server_port):
    server_socket = socket(AF_INET, SOCK_STREAM)
    server_socket.bind(('', server_port))
    server_socket.listen(1)
    return server_socket


def recv_message(server_socket, buffer_size):
    file = open(filename, 'wb')
    connection_socket, address = server_socket.accept()
    file_data= connection_socket.recv(buffer_size)
    file.write(file_data)
    file.close()
    text=("file recieved")
    return text


server_port = input("Please, enter TCP connection port number: ")
server_socket = create_socket(int(server_port))

while (True):
    filename=input(str("enter filename for the incoming file:"))
    incoming_message = recv_message(server_socket,  1048576)
    print ("{}" .format(incoming_message))

server.py

from socket import *

def establish_connection(server_IP, server_port):
    client_socket = socket(AF_INET, SOCK_STREAM)
    client_socket.connect((server_IP, server_port))
    return client_socket

def send_recv_message(client_socket, message, buffer_size):
    file = open(filename,'rb')
    file_data = file.read(buffer_size)
    client_socket.send(file_data)
    text=print("File transfered")
    return text



server_IP = input("Please, enter server IP address: ")
server_port = input("Please, enter server TCP connection port number: ")
client_socket = establish_connection(server_IP, int(server_port))
print("Connection established\n")



filename= input(str("enter filename"))

received_message = send_recv_message(client_socket,filename,1048576)

from socket import *

def create_socket(server_port):
    server_socket = socket(AF_INET, SOCK_STREAM)
    server_socket.bind(('', server_port))
    server_socket.listen(1)
    return server_socket


def recv_message(server_socket, buffer_size):
    file = open(filename, 'wb')
    connection_socket, address = server_socket.accept()
    file_data= connection_socket.recv(buffer_size)
    file.write(file_data)
    file.close()
    text=("file recieved")
    return text


server_port = input("Please, enter TCP connection port number: ")
server_socket = create_socket(int(server_port))

while (True):
    filename=input(str("enter filename for the incoming file:"))
    incoming_message = recv_message(server_socket,  1048576)
    print ("{}" .format(incoming_message))

---

send

可能不会发送整个缓冲区。您需要改用

sendall

---

recv

可能无法接收所有可用数据。您需要在一个循环中调用

recv

，直到连接关闭。

这是因为图片大于缓冲区大小。 您必须将pic表单客户端的大小发送到服务器。文本发送示例可用于将图像发送到

如 mess=f'{len（send_message）}'.ljust（buffer_size）+send_message soc.send（mess.encode（））

在服务器端找到图片的大小，当大小不等于收到的消息时，继续添加消息

  message = ''
    mes_len = 0
    new_msg = True
    print('got the connection: {}'.format(self.request))
    while True:
        data = self.request.recv(buffer_size)
        if new_msg:
            mes_len = int(data.decode())
            new_msg = False
        message += data.decode()

---

嗯，您只需调用一次

file\u data=file.read（buffer\u size）

。如果文件大小大于缓冲区，会发生什么情况？