python大文件的上传,下载是同样的套路,下面是简单的代码
server端代码
import socket
import json
import struct
buffer = 1024 #这里使用1024在上传视频的时候不容易出错,如果选择更大的数回出现错误
sk = socket.socket()
sk.bind(('127.0.0.1',8080))
sk.listen()
conn,addr = sk.accept()
head_len = conn.recv(4)
head_len = struct.unpack('i',head_len)[0]
head_bytes = conn.recv(head_len)
head = json.loads(head_bytes)
filesize = head['filesize']
with open(r'下载\%s'%head['filename'],mode='wb') as f: #注意这里文件路径是r,而且读写方式wb一定是bytes类型
while True:
if filesize >= buffer:
content = conn.recv(buffer)
f.write(content)
filesize -= buffer
else:
content = conn.recv(filesize)
f.write(content)
break
conn.close()
sk.close()
client端代码
import socket
import os
import struct
import json
sk = socket.socket()
sk.connect(('127.0.0.1',8080))
buffer = 1024
head = {'filename':r'01 python fullstack s9day33 复习.mp4',
'filepath':r'D:\python课程\day33',
'filesize':None} #注意这里的文件路径和名称是r
filepath = os.path.join(head['filepath'],head['filename'])
filesize = os.path.getsize(filepath)
head['filesize'] = filesize
head_str = json.dumps(head)
head_bytes = head_str.encode('utf-8')
head_len = len(head_str)
head_len = struct.pack('i',head_len)
sk.send(head_len)
sk.send(head_bytes)
with open(filepath,mode='rb') as f:
while True:
if filesize >= buffer:
content = f.read(buffer)
sk.send(content)
filesize -= buffer
else:
content = f.read(filesize)
sk.send(content)
break
sk.close()