python使用tcp传输图片数据

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()

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()