Question

我正在学习python中的socket programming客户端服务器体系结构。我制作了此程序，以从客户端到服务器一个接一个地发送多个文件。客户端程序查询用户以键入文件名，然后将该名称发送给服务器，服务器在服务器上以附加+二进制方式打开具有该名称的新文件。但是很明显，服务器仅在第一次创建新文件，而在其他时候没有。它只是将下一个文件追加到现有文件中。请看一下。

#server.py
from socket import *

HOST = ''
PORT = 32000
ADDRESS = (HOST, PORT)
BUFF_SIZE = 1024

tcpServerSocket = socket(AF_INET, SOCK_STREAM)
tcpServerSocket.bind(ADDRESS)
tcpServerSocket.listen(5)
print("waiting for connection..")
client, addr = tcpServerSocket.accept()
print("connected with {}".format(addr))
name = client.recv(BUFF_SIZE).decode()
while True:
    if not name:
        break
    f = open(name, 'ab')
    data = client.recv(BUFF_SIZE)
    while data:
        f.write(data)
        data = client.recv(BUFF_SIZE)
    f.close()
    name = client.recv(BUFF_SIZE)
    name = name.decode()

tcpServerSocket.close()

这是client.py

from socket import *

HOST = "localhost"
PORT = 32000
ADDRESS = (HOST, PORT)
BUFF_SIZE = 1024

clientSocket = socket(AF_INET, SOCK_STREAM)
clientSocket.connect(ADDRESS)
while True:
    name = input("please enter file name: \n")
    clientSocket.send(name.encode())
    if not name:
        break
    f = open(name, 'rb')
    data = f.read(BUFF_SIZE)
    while data:
        clientSocket.send(data)
        data = f.read(BUFF_SIZE)
    f.close()
    choice = input("Do you wanna send another file: y/n ?")
    if choice.lower() != 'y':
        clientSocket.send("".encode())
        break

clientSocket.close()

我想知道是否有一种类似函数的冲洗方法，该方法可以完全关闭现有文件/流并每次创建一个新文件。

Answer 1

我这是问题所在。我没有尝试过。在While真循环内将新文件命名为

#server.py
from socket import *

HOST = ''
PORT = 32000
ADDRESS = (HOST, PORT)
BUFF_SIZE = 1024

tcpServerSocket = socket(AF_INET, SOCK_STREAM)
tcpServerSocket.bind(ADDRESS)
tcpServerSocket.listen(5)
print("waiting for connection..")
client, addr = tcpServerSocket.accept()
print("connected with {}".format(addr))

while True:
    name = client.recv(BUFF_SIZE).decode()
    if not name:
        break
    f = open(name, 'ab')
    data = client.recv(BUFF_SIZE)
    while data:
        f.write(data)
        data = client.recv(BUFF_SIZE)
    f.close()
    name = client.recv(BUFF_SIZE)
    name = name.decode()

tcpServerSocket.close()

在python中使用客户端套接字架构发送多个文件时出错

1 个答案: