python实现客户端和服务器端传输图片的代码

'''

Fuction：客户端发送图片和数据

Date：2018.9.8

Author：snowking

'''

###客户端client.py

import socket

import os

import sys

import struct

def sock_client_image():

    while True:

        try:

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

            s.connect(('服务器的ip', 6666))  #服务器和客户端在不同的系统或不同的主机下时使用的ip和端口，首先要查看服务器所在的系统网卡的ip

            # s.connect(('127.0.0.1', 6666))  #服务器和客户端都在一个系统下时使用的ip和端口

        except socket.error as msg:

            print(msg)

            print(sys.exit(1))

        filepath = input('input the file: ')   #输入当前目录下的图片名 xxx.jpg

        fhead = struct.pack(b'128sq', bytes(os.path.basename(filepath), encoding='utf-8'), os.stat(filepath).st_size)  #将xxx.jpg以128sq的格式打包

        s.send(fhead)

        fp = open(filepath, 'rb')  #打开要传输的图片

        while True:

            data = fp.read(1024) #读入图片数据

            if not data:

                print('{0} send over...'.format(filepath))

                break

            s.send(data)  #以二进制格式发送图片数据

        s.close()

        # break    #循环发送

if __name__ == '__main__':

    sock_client_image()

###服务器端server.py

import socket

import os

import sys

import struct

def socket_service_image():

    try:

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

        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        # s.bind(('127.0.0.1', 6666))

        s.bind(('服务器的ip', 6666))

        s.listen(10)

    except socket.error as msg:

        print(msg)

        sys.exit(1)

    print("Wait for Connection.....................")

    while True:

        sock, addr = s.accept()  #addr是一个元组(ip,port)

        deal_image(sock, addr)

def deal_image(sock, addr):

    print("Accept connection from {0}".format(addr))  #查看发送端的ip和端口

    while True:

        fileinfo_size = struct.calcsize('128sq')

        buf = sock.recv(fileinfo_size)   #接收图片名

        if buf:

            filename, filesize = struct.unpack('128sq', buf)

            fn = filename.decode().strip('\x00')

            new_filename = os.path.join('./', 'new_' + fn)  #在服务器端新建图片名（可以不用新建的，直接用原来的也行，只要客户端和服务器不是同一个系统或接收到的图片和原图片不在一个文件夹下）

            recvd_size = 0

            fp = open(new_filename, 'wb')

            while not recvd_size == filesize:

                if filesize - recvd_size > 1024:

                    data = sock.recv(1024)

                    recvd_size += len(data)

                else:

                    data = sock.recv(1024)

                    recvd_size = filesize

                fp.write(data)  #写入图片数据

            fp.close()

        sock.close()

        break

if __name__ == '__main__':

    socket_service_image()