python单线程文件传输的实例(C/S)

更新时间：2020-06-24 08:18:01 作者：startmvc

客户端代码：#-*-encoding:utf-8-*-importsocketimportosimportsysimportmathimporttimedefprogressbar(cur,total):percen

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)