本文实例为大家分享了python实现UDP文件传输的具体代码，供大家参考，具体内容如下

UDP协议下文件传输：

服务端

import socket

count = 0

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

server_addr = ('127.0.0.1',9999)

s.bind(server_addr)

print('Bind UDP on 9999...')

while True:

if count == 0:

data,client_addr = s.recvfrom(1024)

print('connected from %s:%s'%client_addr)

f = open(data, 'wb')

data, client_addr = s.recvfrom(1024)

if str(data) != "b'end'":

f.write(data)

print('recieved '+str(count)+' byte')

else:

break

s.sendto('ok'.encode('utf-8'),client_addr)

count+=1

print('recercled'+str(count))

f.close()

s.close()

# data, addr = s.recvfrom(1024)

# print('Received from %s:%s' %addr)

# s.sendto(b'Hello, %s!' %data, addr)

客户端

import socket

import os

import time

def Get_FilePath_FileName_FileExt(filename):

filepath, tempfilename = os.path.split(filename)

shotname, extension = os.path.splitext(tempfilename)

return filepath, shotname, extension

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

filename = input('please enter the filename you want to send:n')

filepath, shotname, extension = Get_FilePath_FileName_FileExt(filename)

client_addr = ('127.0.0.1',9999)

f = open(filename,'rb')

count = 0

flag = 1

while True:

if count == 0:

data = bytes(shotname+extension, encoding = "utf8")

start = time.time()

s.sendto(data,client_addr)

data = f.read(1024)

if str(data) != "b''":

s.sendto(data,client_addr)

print(str(count)+'byte')

else:

s.sendto('end'.encode('utf-8'),client_addr)

break

data, server_addr = s.recvfrom(1024)

count+=1

print('recircled'+str(count))

s.close

end = time.time()

print('cost'+str(round(end-start,2))+'s')

# for data in [b'Michael',b'Tracy',b'Sarah']:

# s.sendto(data,('127.0.0.1',9999))

# print(s.recv(1024).decode('utf-8'))

# s.close()

此次试验为100000Byte大小的文件，运行后查看服务器端信息：

客户端上查看传输时延：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持易采站长站。