python使用tcp传输图片数据

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

客户端：

import socketimport 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’xffxaaxffxaa’)#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 += picBytessock.sendall(arrBuf) sock.close() if __name__ == ’__main__’: main()

服务端：

import socketserverimport osimport sysimport timeimport threading ip_port=('172.18.0.3',19984) class MyServer(socketserver.BaseRequestHandler): def handle(self):print('conn is :',self.request) # connprint('addr is :',self.client_address) # addrwhile True: try:self.str = self.request.recv(8)data = bytearray(self.str)headIndex = data.find(b’xffxaaxffxaa’)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 += datacurSize += 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 testprint('-------------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()

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好吧啦网。