python使用tcp传输图片数据

时间:2021-11-10 11:14:40 浏览:19次

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 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 += picBytes sock.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) # 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’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 += 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()

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软科小院。

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