server.py

#!/usr/bin/env python
# -*- coding=utf-8 -*-
import socket
import threading
import time
import sys
import os
import struct

def socket_service():
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        s.bind(('192.168.137.9', 23456))#这里换上自己的ip和端口
        s.listen(10)
    except socket.error as msg:
        print(msg)
        sys.exit(1)
    print ("Waiting...")

    while 1:
        conn, addr = s.accept()
        t = threading.Thread(target=deal_data, args=(conn, addr))
        t.start()

def deal_data(conn, addr):
    print ('Accept new connection from {0}'.format(addr))
    while 1:
        fileinfo_size = struct.calcsize('128sl')
        buf = conn.recv(fileinfo_size)
        if buf:
            filename, filesize = struct.unpack('128sl', buf)
            fn = filename.strip(str.encode('\00'))
            new_filename = os.path.join(str.encode('./'), str.encode('new_') + fn)
            print ('file new name is {0}, filesize if {1}'.format(new_filename, filesize))

            recvd_size = 0  # 定义已接收文件的大小
            fp = open(new_filename, 'wb')
            print ("start receiving...")
            while not recvd_size == filesize:
                if filesize - recvd_size > 1024:
                    data = conn.recv(1024)
                    recvd_size += len(data)
                else:
                    data = conn.recv(filesize - recvd_size)
                    recvd_size = filesize
                fp.write(data)
            fp.close()
            print ("end receive...")
        conn.close()
        break


if __name__ == '__main__':
    socket_service()

client.py

#!/usr/bin/env python
# -*- coding=utf-8 -*-

import socket
import os
import sys
import struct

def socket_client():
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect(('192.168.137.1',23456))
    except socket.error as msg:
        print(msg)
        sys.exit(1)

    print (s.recv(1024))

    while 1:
        filepath = input("please input file path: ")
        if os.path.isfile(filepath):
            # 定义定义文件信息。128s表示文件名为128bytes长，l表示一个int或log文件类型，在此为文件大小
            fileinfo_size = struct.calcsize('128sl')
            # 定义文件头信息，包含文件名和文件大小
            fhead = struct.pack('128sl', bytes(os.path.basename(filepath).encode('utf-8')),os.stat(filepath).st_size)
            s.send(fhead)
            print ('client filepath: {0}'.format(filepath))
            fp = open(filepath, 'rb')
            while 1:
                data = fp.read(1024)
                if not data:
                    print ('{0} file send over...'.format(filepath))
                    break
                s.send(data)
        s.close()
        break

if __name__ == '__main__':
    socket_client()