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= ''

    whiledata:

        str1= data[0:2]

        s= int(str1,16)

        str2+=struct.pack('B',s)

        data= data[2:]

    returnstr2

if __name__ =="__main__":

    HOST= 'localhost'

    PORT= 21567

    BUFSIZE= 1024

    ADDR= (HOST,PORT)

    tcpCliSock= socket(AF_INET,SOCK_STREAM)

    tcpCliSock.connect(ADDR)

    whileTrue:

        data= raw_input('>')

        ifnot data:

            break

        tcpCliSock.send(dataSwitch(data))

        data= tcpCliSock.recv(BUFSIZE)

        ifnot data:

            break

        printdata

    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

    whileTrue:

        print'waiting for connection...'

        tcpCliSock,addr= tcpSerSocket.accept()

        print'...connected from:',addr

 

        whileTrue:

            data= tcpCliSock.recv(BUFSIZE)

            printdata.encode('hex')

            ifnot 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()