0x01 思路

使用tcp协议传输文件

json解析二进制的时候,有问题, 不建议使用,推荐 pickle

0x02 代码

服务器端

# 测试文件服务器

# 实现文件的上传和下载

import socket

import os

import json

import pickle

sk = socket.socket()

sk.bind(("127.0.0.1",10051))

sk.listen()

#等待连接

conn,addr = sk.accept()

while True:

if getattr(conn,'_closed'):

conn, addr = sk.accept()

msg_get = conn.recv(109600)

#msg_get_str = msg_get.decode('utf-8')

#msg_info = json.loads(msg_get_str)

#msg_choice = msg_info["choice"]

msg_info = pickle.loads(msg_get)

msg_choice = msg_info["choice"]

# 1 列文件

# 2 下载文件

# 3 上传文件

spec_file_path = os.path.dirname(__file__) + "/" + "files"

file_lists = os.listdir(spec_file_path)

if msg_choice == '1':

#列目录

file_list_str = pickle.dumps(file_lists)

conn.send(file_list_str)

elif msg_choice == '2':

# 下载文件

# 需要输入下载的文件名

file_name = msg_info["file_name"]

if file_name in file_lists:

# 下载操作

file_name_path = spec_file_path+"/"+file_name

with open(file_name_path,"rb") as f:

filebytes = f.read()

#conn.send(filebytes.encode("utf-8"))

conn.send(filebytes)

else:

conn.send("没有可以下载的文件".encode("utf-8"))

elif msg_choice == '3':

# 上传文件,禁止覆盖

file_name = msg_info["file_name"]

file_content = msg_info['file_content']

#file_content = str.encode(file_content_str)

if file_name in file_lists:

conn.send("已存在该文件,禁止覆盖".encode("utf-8"))

else:

file_name_path = spec_file_path + "/" + file_name

with open(file_name_path,"wb") as f:

# 获取字节流

f.write(file_content)

continue_str = input("是否继续 Y or N?")

if continue_str=='N':

break

sk.close()

客户端:

# 上传文件客户端

import socket

import os

import json

import pickle

sk = socket.socket()

sk.connect(("127.0.0.1",10051))

user_choice={"1":"查看服务器的文件","2":"下载文件","3":"上传文件"}

for k,v in user_choice.items():

print(k,v)

spec_file_path = os.path.dirname(__file__) + "/" + "upload_files"

file_lists = os.listdir(spec_file_path)

while 1:

choice_str = input("请输入你的选择:")

if choice_str=='1':

# 列目录

dict_str = {"choice":"1"}

send_str = pickle.dumps(dict_str);

sk.send(send_str)

msg_str = sk.recv(1024)

#pickle.loads(msg_str)

print(pickle.loads(msg_str))

elif choice_str=='2':

# 下载文件

file_name = input("请输入文件名:")

dict_str = {"choice": "2","file_name":file_name}

send_str = pickle.dumps(dict_str);

sk.send(send_str)

# 接收文件

file_content = sk.recv(109600)

file_name_path = spec_file_path + "/" + file_name

with open(file_name_path, "wb") as f:

# 获取字节流

f.write(file_content)

elif choice_str=='3':

# 上传文件

file_name = input("请输入文件名:")

file_name_path = spec_file_path + "/" + file_name

if file_name in file_lists:

with open(file_name_path, "rb") as f:

# 获取字节流

file_content = f.read()

dict_str = {"choice": "3", "file_name": file_name,"file_content":file_content}

#send_str = json.dumps(dict_str);

send_str = pickle.dumps(dict_str)

# 上传文件

sk.send(send_str)

else:

print("选择的文件不存在")

else:

print("对不起,选择失败!")

sk.close()