python单线程文件传输的实例(C/S)

yipeiwu_com6年前Python基础

客户端代码:

#-*-encoding:utf-8-*-
 
import socket
import os
import sys
import math
import time
 
def progressbar(cur, total):
 percent = '{:.2%}'.format(float(cur) / float(total))
 sys.stdout.write('\r')
 sys.stdout.write("[%-50s] %s" % (
       '=' * int(math.floor(cur * 50 / total)),
       percent))
 sys.stdout.flush()
 
def getFileSize(file):
 file.seek(0, os.SEEK_END)
 fileLength = file.tell()
 file.seek(0, 0)
 return fileLength
 
def getFileName(fileFullPath):
 index = fileFullPath.rindex('\\')
 if index == -1:
  return fileFullPath 
 else:
  return fileFullPath[index+1:]
 
def transferFile():
 fileFullPath = r"%s" % raw_input("File path: ").strip("\"")
 if os.path.exists(fileFullPath):
  timeStart = time.clock()
  file = open(fileFullPath, 'rb')
  fileSize = getFileSize(file)
  client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  client.connect((targetHost, targetPort))
  # send file size
  client.send(str(fileSize))
  response = client.recv(1024)
  # send file name
  client.send(getFileName(fileFullPath))
  response = client.recv(1024)
  # send file content
  sentLength = 0
  while sentLength < fileSize:
   bufLen = 1024
   buf = file.read(bufLen)
   client.send(buf)
   sentLength += len(buf)
   process = int(float(sentLength) / float(fileSize) * 100)
   progressbar(process, 100)
  client.recv(1024)
  file.close()
  timeEnd = time.clock()
  print "\r\nFinished, spent %d seconds" % (timeEnd - timeStart)
 else:
  print "File doesn't exist"
 
targetHost = raw_input("Server IP Address: ")
targetPort = int(raw_input("Server port: "))
 
while True:
 transferFile()

服务器端代码:

#-*-encoding:utf-8-*-
 
import socket
import threading
import os
import sys
import math
 
bindIp = "0.0.0.0"
bindPort = 9999
 
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind((bindIp, bindPort))
server.listen(1)
print "Listening on %s:%d" % (bindIp, bindPort)
 
def progressbar(cur, total):
 percent = '{:.2%}'.format(float(cur) / float(total))
 sys.stdout.write('\r')
 sys.stdout.write("[%-50s] %s" % (
       '=' * int(math.floor(cur * 50 / total)),
       percent))
 sys.stdout.flush()
 
def checkFileName(originalFileName):
 extensionIndex = originalFileName.rindex(".")
 name = originalFileName[:extensionIndex]
 extension = originalFileName[extensionIndex+1:]
 
 index = 1
 newNameSuffix = "(" + str(index) + ")"
 finalFileName = originalFileName
 if os.path.exists(finalFileName):
  finalFileName = name + " " + newNameSuffix + "." + extension
 while os.path.exists(finalFileName):
  index += 1
  oldSuffix = newNameSuffix
  newNameSuffix = "(" + str(index) + ")"
  finalFileName = finalFileName.replace(oldSuffix, newNameSuffix)
 return finalFileName
 
def handleClient(clientSocket):
 # receive file size
 fileSize = int(clientSocket.recv(1024))
 # print "[<==] File size received from client: %d" % fileSize
 clientSocket.send("Received")
 # receive file name
 fileName = clientSocket.recv(1024)
 # print "[<==] File name received from client: %s" % fileName
 clientSocket.send("Received")
 fileName = checkFileName(fileName)
 file = open(fileName, 'wb')
 # receive file content
 print "[==>] Saving file to %s" % fileName
 receivedLength = 0
 while receivedLength < fileSize:
  bufLen = 1024
  if fileSize - receivedLength < bufLen:
   bufLen = fileSize - receivedLength
  buf = clientSocket.recv(bufLen)
  file.write(buf)
  receivedLength += len(buf)
  process = int(float(receivedLength) / float(fileSize) * 100)
  progressbar(process, 100)
 
 file.close()
 print "\r\n[==>] File %s saved." % fileName
 clientSocket.send("Received")
 
while True:
 client, addr = server.accept()
 print "[*] Accepted connection from: %s:%d" % (addr[0], addr[1])
 
 clientHandler = threading.Thread(target=handleClient, args=(client,))
 clientHandler.start()

运行结果示例:

服务器端:

python单线程文件传输(C/S)

客户端(服务器端做了端口映射:59999->9999):

python单线程文件传输(C/S)

以上这篇python单线程文件传输的实例(C/S)就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持【听图阁-专注于Python设计】。

相关文章

ubuntu系统下使用pm2设置nodejs开机自启动的方法

1.安装pm2 : npm install pm2 -gd 这时在命令行下执行pm2命令可能找不到,需要执行如下命令 1.创建软链接:ln -s /home/XXX/node-node-...

opencv改变imshow窗口大小,窗口位置的方法

如下所示: cv2.HoughLinesP cv2.namedWindow("enhanced",0); cv2.resizeWindow("enhanced", 640, 4...

Python中实现参数类型检查的简单方法

Python是一门弱类型语言,很多从C/C++转过来的朋友起初不是很适应。比如,在声明一个函数时,不能指定参数的类型。用C做类比,那就是所有参数都是void*类型!void类型强制转换在...

python 基础学习第二弹 类属性和实例属性

复制代码 代码如下: #!/usr/bin/env python class Foo(object): x=1 if __name__=='__main__': foo = Foo()...

python浪漫表白源码

python浪漫表白源码

要知道我们程序猿也是需要浪漫的,小博我之前在网上搜寻了很多代码,确发现好多都不是最新的,所以自己就整理了一下代码,现在与广大博友们分享下 我们需要用到的包 使用pip install...