使用python socket分发大文件的实现方法

#!/usr/bin/env python
#-*- coding:utf-8 -*-
#environment：2.7

import os,json,time,socket
sk = socket.socket()
ip_port=('127.0.0.1',9600)
sk.bind(ip_port)
sk.listen(5)
file_path = '/root/update/123.txt'
file_name = file_path.rsplit(os.sep,1)[1] 
file_size = os.path.getsize(file_path)  #获取文件内容大小
#发送给客户端的头部信息
header_data = {
  'file_name': file_name,
  'file_size': file_size,
  'date': time.strftime('%Y-%m-%d %X',time.localtime()),
  'charset': 'utf-8'
}
while True:
  conn, addr = sk.accept()
  print("%s:%s is connect"% addr)
  request_data = conn.recv(1024)
  print(request_data)
  # 把头部内容发送过去
  conn.send(json.dumps(header_data))
  request_data1 = conn.recv(1024)
  print(request_data1)
  f = open(file_path,'r')
  content = f.read()
  #发送文件内容
  conn.sendall(content)
  conn.close()

#!/usr/bin/env python
#-*- coding:utf-8 -*-
#environment：2.7

import socket,json
while True:
  sk = socket.socket()
  ip_port = ('127.0.0.1',9600)
  sk.connect(ip_port)
  user_input = raw_input('>>>:').strip()
  if len(user_input) == 0:continue
  if user_input == 'q':break
  sk.send(user_input)
  server_head_msg = json.loads(sk.recv(1024))
  print(server_head_msg)
  #文件名res_name，文件大小res_size
  res_name = server_head_msg['file_name']
  res_size = server_head_msg['file_size']
  sk.send('已经收到头部信息,你可以发送数据了')
  #下面是循环接收文件内容的部分
  num = res_size/1024.0
  if num != int(num):
    num = int(num) +1
  else:
    num = int(num)
  for i in range(num):
    content = sk.recv(1024)
    print(content)

res = ''
recive_size = 0
while recive_size <= res_size:
  data = sk.recv(1024)
  recive_size += len(data)
  res += data
else:
  print(res)
  print('done'.center(40,'='))