python socket通信 以16进制的数据进行传递与解析

struct.pack也就是将数据按照二进制的格式进行传输

#!/usr/bin/env python #coding:utf-8 __author__ = 'ferraborghini' from socket import * import struct #将16进制数据当做字节流传递 def dataSwitch(data):     str1 = ''     str2 = ''     while data:         str1 = data[0:2]         s = int(str1,16)         str2 += struct.pack('B',s)         data = data[2:]     return str2 if __name__ == "__main__":     HOST = 'localhost'     PORT = 21567     BUFSIZE = 1024     ADDR = (HOST,PORT)     tcpCliSock = socket(AF_INET,SOCK_STREAM)     tcpCliSock.connect(ADDR)     while True:         data = raw_input('>')         if not data:             break         tcpCliSock.send(dataSwitch(data))         data = tcpCliSock.recv(BUFSIZE)         if not data:             break         print data     tcpCliSock.close()

　　

 

解析报文，这时候读入的其实相当于二进制流，我们要做的就将二进制流转化为16进制就行

#!/usr/bin/env python #coding:utf-8 from socket import * from time import ctime if __name__ == "__main__":     HOST = ''                       #此处为空代表可以绑定所有有效地址     PORT = 21567     BUFSIZE = 1024     ADDR = (HOST,PORT)     tcpSerSocket = socket(AF_INET,SOCK_STREAM)     tcpSerSocket.bind(ADDR)     tcpSerSocket.listen(5)          #最多可以有5个连接同时进入     while True:         print 'waiting for connection...'         tcpCliSock,addr = tcpSerSocket.accept()         print '...connected from:',addr           while True:             data = tcpCliSock.recv(BUFSIZE)             print data.encode('hex')             if not data:                 break             tcpCliSock.send('[%s] %s'%(ctime(),data))             # tcpCliSock.close()　　　　　　　　#如果接收完，就断开的话，下次再发送就会报错，书本上有问题     tcpSerSocket.close()