一次完整的socket文件的传输

• socket建立网络连接，注意文件分割后，传输完成的检测
• pickle 封装文件信息：文件名、文件大小、md5码
• os 文件路径、文件名、文件大小
• hashlib md5码生成

server端

# Author：Winter Liu is coming!
import socket
import pickle
import hashlib

server = socket.socket()
server.bind(("127.0.0.1", 10002))
server.listen()
conn, addr = server.accept()

msg = conn.recv(1024)
msg = pickle.loads(msg)
filesize = msg["filesize"]
m = hashlib.md5()
with open(msg["filename"], "wb") as f:
    while filesize:
        data = conn.recv(4096)
        m.update(data)
        f.write(data)
        filesize -= len(data)
if m.hexdigest() == msg["md5"]:
    print("translation complete!",m.hexdigest())
else:
    print("transfer error!")

server.close()

client端

# Author：Winter Liu is coming!
import socket
import pickle
import os
import hashlib

client = socket.socket()
server = ("127.0.0.1", 10002)
client.connect(server)
abs_path = r"C:\PycharmProjects\python level up\Socket网络编程\test.txt"
filename = os.path.basename(abs_path)
filesize = os.path.getsize(abs_path)
m = hashlib.md5()
with open(abs_path, "rb") as f:
    for line in f:
        m.update(line)
dic = {"filename": filename, "filesize": filesize,"md5":m.hexdigest()}
print(dic)
msg = pickle.dumps(dic)
client.send(msg)

with open(abs_path, "rb") as f:
    while filesize:
        data = f.read(4096)
        client.send(data)
        filesize -= len(data)


client.close()