python使用tcp传输图片数据_Python

python使用tcp传输图片数据

2021-12-06 10:57zebra_zzh Python

这篇文章主要为大家详细介绍了python使用tcp传输图片数据，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

本文实例为大家分享了python使用tcp传输图片数据的具体代码，供大家参考，具体内容如下

数据包格式如下

python使用tcp传输图片数据

客户端：

				?

									import socket

									import sys

									HOST,PORT = "172.18.0.3",19984

									def main():

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

									    sock.connect((HOST, PORT))

									    #包头标志

									    arrBuf = bytearray(b'\xff\xaa\xff\xaa')

									    #以二进制方式读取图片

									    picData = open('1.jpg', 'rb')

									    picBytes = picData.read()

									    #图片大小

									    picSize = len(picBytes)

									    #数据体长度 = guid大小(固定) + 图片大小

									    datalen = 64 + picSize

									    #组合数据包

									    arrBuf += bytearray(datalen.to_bytes(4, byteorder='little'))

									    guid = 23458283482894382928948

									    arrBuf += bytearray(guid.to_bytes(64, byteorder='little'))

									    arrBuf += picBytes

									    sock.sendall(arrBuf)

									    sock.close()

									if __name__ == '__main__':

									    main()

服务端：

				?

									import socketserver

									import os

									import sys

									import time

									import threading

									ip_port=("172.18.0.3",19984)

									class MyServer(socketserver.BaseRequestHandler):

									    def handle(self):

									        print("conn is :",self.request) # conn

									        print("addr is :",self.client_address) # addr

									        while True:

									            try:

									                self.str = self.request.recv(8)

									                data = bytearray(self.str)

									                headIndex = data.find(b'\xff\xaa\xff\xaa')

									                print(headIndex)

									                if headIndex == 0:

									                    allLen = int.from_bytes(data[headIndex+4:headIndex+8], byteorder='little')

									                    print("len is ", allLen)

									                    curSize = 0

									                    allData = b''

									                    while curSize < allLen:

									                        data = self.request.recv(1024)

									                        allData += data

									                        curSize += len(data)

									                    print("recv data len is ", len(allData))

									                    #接收到的数据，前64字节是guid，后面的是图片数据

									                    arrGuid = allData[0:64]

									                    #去除guid末尾的0

									                    tail = arrGuid.find(b'\x00')

									                    arrGuid = arrGuid[0:tail]

									                    strGuid = str(int.from_bytes(arrGuid, byteorder = 'little')) #for test

									                    print("-------------request guid is ", strGuid)

									                    imgData = allData[64:]

									                    strImgFile = "2.jpg"

									                    print("img file name is ", strImgFile)

									                    #将图片数据保存到本地文件

									                    with open(strImgFile, 'wb') as f:

									                        f.write(imgData)

									                        f.close()

									                    break

									            except Exception as e:

									                print(e)

									                break

									if __name__ == "__main__":

									    s = socketserver.ThreadingTCPServer(ip_port, MyServer)

									    print("start listen")

									    s.serve_forever()