python傳輸檔案最重要的有兩步:
1).將要傳輸的檔案的資訊發送過去,包括檔案包,大小以及其它資訊;
2).發送端讀取檔案內容並發送過去,接受端將緩衝裡面的內容寫入檔案.
發送端:from socket import *
import os
import struct ADDR = ('192.168.1.103',8000)
BUFSIZE = 1024
filename = 'client.py'
FILEINFO_SIZE=struct.calcsize('128s32sI8s') sendSock = socket(AF_INET,SOCK_STREAM)
sendSock.connect(ADDR) fhead=struct.pack('128s11I',filename,0,0,0,0,0,0,0,0,os.stat(filename).st_size,0,0)
sendSock.send(fhead) fp = open(filename,'rb')
while 1:
filedata = fp.read(BUFSIZE)
if not filedata: break
sendSock.send(filedata)
fp.close() sendSock.close() 接收端: # -*- coding: cp936 -*-
from socket import *
import struct ADDR = ('192.168.1.103',8000)
BUFSIZE = 1024
FILEINFO_SIZE=struct.calcsize('128s32sI8s') recvSock = socket(AF_INET,SOCK_STREAM)
recvSock.bind(ADDR)
recvSock.listen(True) print "wait..."
conn,addr = recvSock.accept()
print "send from ",addr fhead = conn.recv(FILEINFO_SIZE)
filename,temp1,filesize,temp2=struct.unpack('128s32sI8s',fhead)
#print filename,temp1,filesize,temp2
print filename,len(filename),type(filename)
print filesize filename = 'new_'+filename.strip('\00') #...
fp = open(filename,'wb')
restsize = filesize
while 1:
if restsize > BUFSIZE:
filedata = conn.recv(BUFSIZE)
else:
filedata = conn.recv(restsize)
if not filedata: break
fp.write(filedata)
restsize = restsize-len(filedata)
if restsize == 0: break
fp.close() conn.close()
recvSock.close() print "Finished" 代碼中,將檔案資訊採用struct的方式傳送過去.接收端接收並unpack.整個過程發送和接受各兩次,這便是整個的過程. |
