发送大数据文件

客户端

import os
import socket
import struct
import json

client = socket.socket()
client.connect(('127.0.0.1', 8080))

while True:
    movie_dir = r'F:day31视频'
    movie_list = os.listdir(movie_dir)
    for index, i in enumerate(movie_list, 1):
        print(index, i)
    choice = input('请输入你想选择影片的编号:').strip()
    if not choice.isdigit():
        print('请输入数字')
        continue
    choice = int(choice) - 1
    if choice not in range(0, len(movie_list)):
        print('请输入正确数字')
        continue
    movie_name = movie_list[choice]
    movie_path = os.path.join(movie_dir, movie_name)
    # 获取文件大小
    movie_size = os.path.getsize(movie_path)
    # 制作字典
    dic = {'name': movie_name, 'movie_size': movie_size}
    # 制作报头
    json_dic = json.dumps(dic)
    byte_dic = json_dic.encode('utf-8')
    header = struct.pack('i', len(byte_dic))
    # 发送报头
    client.send(header)
    # 发送字典
    client.send(byte_dic)
    # 发送真实数据
    with open(movie_path, 'rb')as f:
        res = f.readlines()
    for i in res:
        client.send(i)
    print('xxx')

服务端

import socket
import json
import struct

server = socket.socket()
server.bind(('127.0.0.1', 8080))
server.listen(5)

while True:
    conn, addre = server.accept()
    while True:
        try:
            # 接收字典报头
            header_dic = conn.recv(4)
            # 解析报头获取字典长度
            dic_size = struct.unpack('i', header_dic)[0]
            print(dic_size)
            # 接收字典
            byte_dic = conn.recv(dic_size)
            dic = json.loads(byte_dic.decode('utf-8'))
            # 接收真实数据
            real_size = dic.get('movie_size')
            recv_size = 0
            while recv_size < real_size:
                data = conn.recv(1024)
                with open(r'D:unloads\%s' % dic.get('name'), 'ab')as f:
                    f.write(data)
                recv_size += len(data)
            print('ooo')
        except ConnectionResetError:
            break