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Python UDP Socket 实时在线刷卡扫码POS消费机服务端示例源码

news 2025/6/22 11:42:15

本示例使用的设备：https://item.taobao.com/item.htm?spm=a21dvs.23580594.0.0.1d292c1bk8Qc9r&ft=t&id=17021194999

一、服务端绑定IP开启UDP端口接收消费机提交的请求

import sys
import os
import socket
import time
import datetimeIpList=[]
if sys.platform == 'linux' or sys.platform=='mac':     # linux、mac系统获取电脑所有网卡IPips = [ip.split('/')[0] for ip in os.popen("ip addr | grep 'inet '|awk '{print $2}'").readlines()]for i in ips:IpList.append(i)print('%d   '%(len(IpList)) + i)
else:addrs = socket.getaddrinfo(socket.gethostname(),None)   #windows获取电脑所有网卡IPfor item in addrs:if ':' not in item[4][0]:IpList.append(item[4][0])print('%d   '%(len(IpList)) + item[4][0])BUFSIZE = 1024
Bindip=IpList[0]  #如果电脑有多个网卡IP，可以选择绑定不同的IP
Bindprot=39192s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
s.bind((Bindip, Bindprot))
print('\n系统绑定IP:'+Bindip+':%d'% (Bindprot)+'\n')while True:data, addr = s.recvfrom(BUFSIZE)message = 'Received from %s:%s \n' % (addr, data)print(message)GetInf = str(data, encoding="gbk")FieldsList = GetInf.split(',')    #分割接收到的数据后解析、处理、返回指令 */

二、接收到消费机上传的刷卡数据

if(FieldsList[0]=='102'):                      #接收到消费机的刷卡信息DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferCardidStr = FieldsList[5]         #卡号if(len(FieldsList)>6):                     #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[6]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          #可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息#用009指令 将业务处理结果发送到设备#设备如接收到了本次发送的信息，会以109指令回复，在正式项目中要根据此特性做重发机制SendInfStr="009,"+ DevBufferMachinStr + ",卡号:" + DevBufferCardidStr  + "\\nn姓名:张三丰\\n余额:888.88\\n状态:卡可正常使用\\n,20,1,0" SendInfToIp(SendInfStr,addr)

三、接收到消费机上传的现金支付请求

if(FieldsList[0]=='103'):                      #接收到 输入消费金额后刷卡、消费机定额消费、消费机计次消费 的上传信息DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferCardidStr = FieldsList[5]         #卡号DevBufferUseMoneryStr= FieldsList[6]       #消费金额DevBufferUseTimeStr= FieldsList[7]         #消费时间if(len(FieldsList)>8):                     #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[8]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          #可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息#用006指令返回本次消费失败#用008指令返回本次消费成功#设备如接收到了本次发送的信息，会以109指令回复，在正式项目中要根据此特性做重发机制#SendInfStr="006," + DevBufferMachinStr + "," + DevBufferCardidStr + "," + "姓名:张三丰  \\n余额:168.88 \\n状态:此卡已挂失 \\n ,20,0,6" SendInfStr="008," + DevBufferMachinStr + "," + DevBufferCardidStr + "," + DevBufferUseMoneryStr + "," + "姓名:张三丰 {123.45}\\n,20,0,1"SendInfToIp(SendInfStr,addr)

四、接收到消费机上传的计次消费请求

if(FieldsList[0]=='104'):                      #接收到 计次消费模式下，终端刷卡后设备向电脑发送此信息DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferCardidStr = FieldsList[5]         #卡号DevBufferUseTimeStr= FieldsList[6]         #消费时间if(len(FieldsList)>7):                     #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[7]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          #可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息#用006指令返回本次消费失败#用008指令返回本次消费成功#设备如接收到了本次发送的信息，会以109指令回复，在正式项目中要根据此特性做重发机制SendInfStr="006," + DevBufferMachinStr + "," + DevBufferCardidStr + "," + "姓名:张三丰  \\n余额:168.88 \\n状态:此卡已挂失\\n ,20,0,6" #SendInfStr="008," + DevBufferMachinStr + "," + DevBufferCardidStr + ",0.00," + "姓名:张三丰 {123.45}\\n,20,0,1"SendInfToIp(SendInfStr,addr)

五、接收到消费机上传的记账消费记录

if(FieldsList[0]=='105'):                      #接收到脱网时 白名单卡 记账消费记录DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferCardidStr = FieldsList[5]         #卡号DevBufferUseMoneryStr= FieldsList[6]       #消费金额DevBufferUseTimeStr= FieldsList[7]         #消费时间DevBufferStaryStr= FieldsList[8]           #消费方式  0扣费 1计次DevBufferRecordAddStr= FieldsList[9]       #记录地址标识DevBufferAllNoStr= FieldsList[10]          #总计录数if(len(FieldsList)>11):                    #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[11]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)if(isVaildDate(DevBufferUseTimeStr)==0):   #判断消费时间是否正确DevBufferUseTimeStr="9999-99-99 99:99:99"   #如果消费时间不正确，需更为 9999-99-99 99:99:99 才能将此条非法记录删除#时间正确说明是条有效记录，可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息  #清除设备内当前这条已上传的记录，驱动设备继续上传剩下的记录SendInfStr="011," + DevBufferMachinStr + "," + DevBufferCardidStr + "," + DevBufferUseMoneryStr + "," + DevBufferUseTimeStr + "," + DevBufferRecordAddStr SendInfToIp(SendInfStr,addr)

六、接收到消费机上传的按键信息

if(FieldsList[0]=='106'):                      #接收到设备的按键信息DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferUseTimeStr= FieldsList[5]         #按键信息if(len(FieldsList)>6):                     #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[6]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          #可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息

七、接收到消费机上传的扫码支付请求

if(FieldsList[0]=='128'):                      #接收到消费金额、扫码信息DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferCommandStr = FieldsList[5]        #指令号DevBufferUseMoneryStr= FieldsList[6]       #消费金额DevBufferUseTimeStr= FieldsList[7]         #消费时间DevBufferQrcodeInfStr=""if(len(FieldsList)>9):                     #防止二维码信息中有分隔符，for num in range(9,len(FieldsList)-1):DevBufferQrcodeInfStr=DevBufferQrcodeInfStr+FieldsList[num]DevBufferSerialNumStr=FieldsList[len(FieldsList)-1]    #2018年以后的设备有唯一硬件序号SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          #可以在这里加上业务对数据库的查、增、删操作，要分析是否重复接收的信息#用006指令返回本次消费失败#用008指令返回本次消费成功#设备如接收到了本次发送的信息，会以109指令回复，在正式项目中要根据此特性做重发机制#SendInfStr="006," + DevBufferMachinStr + "," + DevBufferCommandStr + "," + "姓名:张三丰  \\n余额:168.88 \\n状态:此卡已挂失 \\n ,20,0,6" SendInfStr="008," + DevBufferMachinStr + "," + DevBufferCommandStr + "," + DevBufferUseMoneryStr + ",正在进行扫码支付..{请不要按动键盘!    \\n},5,0,1"SendInfToIp(SendInfStr,addr)

八、接收到消费机开机信号

if(FieldsList[0]=='101'):                      #接收到设备的开机信号DevRecFramesStr = FieldsList[1]            #包序列号DevBufferIpAddrStr = FieldsList[2]         #终端IPDevBufferRemoteAddrStr = FieldsList[3]     #远程电脑指机IPDevBufferMachinStr = FieldsList[4]         #机号DevBufferDatetimeStr = FieldsList[5]       #设备日期时间if(len(FieldsList)>6):                     #2018年以后的设备有唯一硬件序号DevBufferSerialNumStr=FieldsList[6]SendInfStr="001,"+DevRecFramesStr          #确定接收到信息，否则设备会连续发送三次SendInfToIp(SendInfStr,addr)          GetDT=DevBufferDatetimeStr[0:16]SysDT= get_time()if (GetDT!=SysDT):                        #设备时钟与系统不符，更新设备时间SendInfStr="003," + DevBufferMachinStr +"," + time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())    SendInfToIp(SendInfStr,addr)

九、服务端回应消费机的指令

def SendInfToIp(SendInfStr,addr):sdata=bytes(SendInfStr, encoding='gbk')  #将要发送的信息转为bytess.sendto(sdata,addr)   message = 'SendData To %s:%s' % (addr, sdata)print(message+"\n")

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