POS机的接口

联迪的POS机

读取付款方式

private void Form_MisPos_Load(object sender, EventArgs e)
{
List<Trans> list = MisPos.GetTransList();
int col = 0;
int y = 15;
int colcount = 3;
Panel p = panel3;
int pw = p.Width;
foreach (Trans t in list)
{
Button btn = new System.Windows.Forms.Button();
int x = col * (pw / 3) + 10;
btn.Location = new System.Drawing.Point(x, y);
btn.Name = "btn_" + t.Code;
btn.Size = new System.Drawing.Size(pw / 3 - 20, 28);

btn.Text = t.Text;
btn.UseVisualStyleBackColor = true;
btn.Click += new System.EventHandler(this.btn_Click);
p.Controls.Add(btn);
col++;
if (col >= colcount)
{
col = 0;
y = y + 32;
}
}
}

交易

private void do_BankTrans(string trans)
{
InputData indata = new InputData();
indata.posid = "111";//[8]; /* 收银机号(8字节,左对齐,不足部分补空格)*/
indata.trans = trans;//[2]; /* 交易类型: '00'消费'01'撤销'02'退货'03'查余
indata.amount = InputData.Float2Amount(999.99F);//[12]; /* 金额(12字节,无小数点,左补0,单位:分)*/
indata.old_date = InputData.Date2Str(DateTime.Now);//[8]; /* 原交易日期(8 字节,yyyymmdd 格式,隔日退货时用)*/
indata.old_reference = "";//[12]; /* 原交易参考号*/
indata.old_trace = "";//[6]; /* 流水号(6 字节,右对齐,左补 0,退货或重打印等用)*/
indata.old_batch = "";//[6]; /*57~62 位原批次号*/
indata.old_auth = "";//[6]; /*63~68 位原授权码*/
indata.old_terno = "";//[8]; /*69~76 位原交易终端号*/
indata.szFenqiNum = "";//[2]; /*77~78 位分期数03，06，09，12，18，24，36，42，48，60*/
indata.szServiceNum = "";//[2];/*79~80 位享受服务人数*/
indata.szGoodsNo = "";//[12]; /*81~92 位商品项目编码*/
indata.trk2 = "";//[37]; /* 二磁道数据（37字节，左对齐，不足部分补空格）*/
indata.trk3 = "";//[104]; /* 三磁道数据（104字节, 左对齐，不足部分补空格）*/
indata.lrc = InputData.getlrc_Random();//[3]; /* 交易校验数据（3位从 0～9的随机字符）*/
indata.szOrderTrace = "";//[20]; // 6/16/2015 新增收银流水(订单)号左对齐不足补空格
indata.szPrefer = "";//[50]; // 优惠券左对齐不足补空格
indata.szRsv = "";//[300]; // 保留字段在此输入二维码的条码数据左对齐不足补空格
OutPutData outdata = null;
int i = MisPos.do_BankTrans(indata, out outdata);
MessageBox.Show(outdata.resp_chin);
}

类代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace POSTEST
{
    public class Trans
    {
        public string Code = "";
        public string Text = "";
    }
    public class InputData
    {
        public string posid = "";//[8];    /*  收银机号(8字节,左对齐,不足部分补空格)*/ 
        public string operid = "";//[8];    /*  操作员号(8字节,左对齐,不足部分补空格)*/ 
        public string trans = "";//[2];    /*  交易类型: '00'消费'01'撤销'02'退货'03'查余 
        public string amount = "";//[12];  /*  金额(12字节,无小数点,左补0,单位:分)*/ 
        public string old_date = "";//[8];  /*  原交易日期(8 字节,yyyymmdd 格式,隔日退货时用)*/ 
        public string old_reference = "";//[12]; /*  原交易参考号*/ 
        public string old_trace = "";//[6];  /*  流水号(6 字节,右对齐,左补 0,退货或重打印等用)*/ 
        public string old_batch = "";//[6];  /*57~62 位  原批次号*/ 
        public string old_auth = "";//[6];  /*63~68 位  原授权码*/ 
        public string old_terno = "";//[8];  /*69~76 位  原交易终端号*/ 
        public string szFenqiNum = "";//[2]; /*77~78 位  分期数03，06，09，12，18，24，36，42，48，60*/ 
        public string szServiceNum = "";//[2];/*79~80 位   享受服务人数*/ 
        public string szGoodsNo = "";//[12];  /*81~92 位  商品项目编码*/ 
        public string trk2 = "";//[37];    /*  二磁道数据（37字节，左对齐，不足部分补空格）*/ 
        public string trk3 = "";//[104];    /*   三磁道数据（104字节,  左对齐，不足部分补空格）*/ 
        public string lrc = "";//[3];    /*   交易校验数据（3位从 0～9的随机字符）*/ 
        public string szOrderTrace = "";//[20];  // 6/16/2015 新增 收银流水(订单)号 左对齐 不足补空格 
        public string szPrefer = "";//[50];    //  优惠券左对齐 不足补空格 
        public string szRsv = "";//[300];    // 保留字段 在此输入二维码的条码数据 左对齐  不足补空格
        public byte[] getdata()
        {
            List<byte> list = new List<byte>();
            addbyte(list, posid, 8, ' ');
            addbyte(list, operid, 8, ' ');
            addbyte(list, trans, 2, ' ');
            addbyte(list, amount, 12, ' ');
            addbyte(list, old_date, 8, ' ');
            addbyte(list, old_reference, 12, ' ');
            addbyte(list, old_trace, 6, ' ');
            addbyte(list, old_batch, 6, ' ');
            addbyte(list, old_auth, 6, ' ');
            addbyte(list, old_terno, 8, ' ');
            addbyte(list, szFenqiNum, 2, ' ');
            addbyte(list, szServiceNum, 2, ' ');
            addbyte(list, szGoodsNo, 12, ' ');
            addbyte(list, trk2, 37, ' ');
            addbyte(list, trk3, 104, ' ');
            addbyte(list, lrc, 3, ' ');
            addbyte(list, szOrderTrace, 20, ' ');
            addbyte(list, szPrefer, 50, ' ');
            addbyte(list, szRsv, 300, ' ');
            return list.ToArray();
        }
        public void addbyte(List<byte> list,string v,int len  ,char c )
        {
            string s = v.PadRight(len, c);
            Encoding encoding = Encoding.GetEncoding("gb2312");
            byte[] bs =encoding.GetBytes(s);
            for (int i = 0; i < len; i++)
            {
                list.Add(bs[i]);
            }
        }
        public static string getlrc_Random()
        {
            Random r = new Random(DateTime.Now.Millisecond);
            return r.Next(10).ToString() + r.Next(10).ToString() + r.Next(10).ToString();
        }
        public static string Float2Amount(float v)
        {
            int intv = (int)(v * 100 + 0.001);
            string s = intv.ToString();
            s = s.PadLeft(12, '0');
            return s;
        }
        public static string Date2Str(DateTime dt)
        {
            string s = dt.ToString("yyyyMMdd");
            return s;
        }
    }
    public class OutPutData
    {
        public string resp_code = "";//[2];  /*1～2 位  返回码  (2 字节，"00"交易成功,其他失败)*/ 
        public string bank_code = "";//[4]; /*3～6 位  银行行号（4 字节）*/ 
        public string card_no = "";//[30];  /*7～36 位  卡号:622280*********4860 */ 
        public string expr = "";//[4];    /*37～40位  有效期  (4 字节) */ 
        public string amount = "";//[12];  /*141～52位  金额（12字节，无小数点，左补 0，单位：分）*/ 
        public string trace = "";//[6];    /*53～58位   流水号   (6字节，左对齐)*/ 
        public string refer = "";//[12];   /*59～70位  交易参考号*/   
        public string auth = "";//[6];    /*71～76位   授权号*/ 
        public string batch = "";//[6];    /*77～82位   批次号*/ 
        public string date = "";//[8+6];    /*83～96位  交易日期（8字节,yyyymmddhhmmss格式）*/ 
        public string userno = "";//[15];  /*97～111位  商户号*/ 
        public string terno = "";//[8];    /*112～119位 终端号*/ 
        public string old_terno = "";//[8];  /*120～127位  原终端号*/ 
        public string resp_chin = "";//[50]; /*   错误说明(左对齐，不足部分补空格)*/ 
        public string OrderNo = "";//[50];  /*   二维码交易订单订单号  */ 
        public string trans = "";//[2];    /*  交易类型 与请求结构中交易类型的说明一样*/ 
        public string ChannelType = "";//[2];    /* 00  银行卡01微信  02支付宝  03 银联二维码  */ 
        public string lrc = "";//[3];    /*   交易数据校验码（3 字节）*/    
        public void readdata(byte[] data)
        {
            int i = 0;
            resp_code = readstr(data, ref i, 2);
            bank_code = readstr(data, ref i, 4);
            card_no = readstr(data, ref i, 30);
            expr = readstr(data, ref i, 4);
            amount = readstr(data, ref i, 12);
            trace = readstr(data, ref i, 6);
            refer = readstr(data, ref i, 12);
            auth = readstr(data, ref i, 6);
            batch = readstr(data, ref i, 6);
            date = readstr(data, ref i, 8 + 6);
            userno = readstr(data, ref i, 15);
            terno = readstr(data, ref i, 8);
            old_terno = readstr(data, ref i, 8);
            resp_chin = readstr(data, ref i, 50);
            OrderNo = readstr(data, ref i, 50);
            trans = readstr(data, ref i, 2);
            ChannelType = readstr(data, ref i, 2);
            lrc = readstr(data, ref i, 3); 

        }
        public string readstr(byte[] data,ref int pos,int len)
        {
            Encoding encoding = Encoding.GetEncoding("gb2312");
            string s = encoding.GetString(data, pos, len);
            pos = pos + len;
            return s;
        }
     }
    public class MisPos
    {
        [DllImport("MisPos.dll", EntryPoint = "BankTrans", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern int BankTrans(ref byte indata, ref byte outdata);
        public static int do_BankTrans(InputData indata, out OutPutData outdata)
        {
            int result = 0;
            byte[] inbs = new byte[2048];
            for (var i = 0; i < inbs.Length; i++)
                inbs[i] = 0;
            byte[] outbs = new byte[2048];
            for (var i = 0; i < outbs.Length; i++)
                outbs[i] = 0;
            byte[] bs = indata.getdata();
            for (var i = 0; i < bs.Length; i++)
                inbs[i] = bs[i];
            result = BankTrans(ref inbs[0], ref  outbs[0]);
            outdata = new OutPutData();
            outdata.readdata(outbs);
            return result;
        }
        public static List<Trans> GetTransList()
        {
            List<Trans> result = new List<Trans>();
            result.Add(new Trans() { Code = "00", Text = "消费" });
            result.Add(new Trans() { Code = "01", Text = "撤销" });
            result.Add(new Trans() { Code = "02", Text = "退货" });
            result.Add(new Trans() { Code = "03", Text = "查余" });
            result.Add(new Trans() { Code = "04", Text = "重打印" });
            result.Add(new Trans() { Code = "05", Text = "签到" });
            result.Add(new Trans() { Code = "06", Text = "结算" });
            result.Add(new Trans() { Code = "08", Text = "小费" });
            result.Add(new Trans() { Code = "09", Text = "预授权" });
            result.Add(new Trans() { Code = "10", Text = "预授权追加" });
            result.Add(new Trans() { Code = "11", Text = "预授权完成" });
            result.Add(new Trans() { Code = "12", Text = "预授权撤销" });
            result.Add(new Trans() { Code = "13", Text = "预授权完成撤销" });
            result.Add(new Trans() { Code = "14", Text = "商场分期" });
            result.Add(new Trans() { Code = "15", Text = "专用分期" });
            result.Add(new Trans() { Code = "16", Text = "分期撤销" });
            result.Add(new Trans() { Code = "18", Text = "分期额度查询" });
            result.Add(new Trans() { Code = "19", Text = "汽车卡洗车" });
            result.Add(new Trans() { Code = "20", Text = "快速支付" });
            result.Add(new Trans() { Code = "21", Text = "指定账户圈存" });
            result.Add(new Trans() { Code = "22", Text = "电子现金退货" });
            result.Add(new Trans() { Code = "23", Text = "电子现金查余" });
            result.Add(new Trans() { Code = "24", Text = "积分兑换消费" });
            result.Add(new Trans() { Code = "25", Text = "积分兑换撤销" });
            result.Add(new Trans() { Code = "26", Text = "积分查询" });
            result.Add(new Trans() { Code = "28", Text = "权益积分查询" });
            result.Add(new Trans() { Code = "29", Text = "权益积分消费" });
            result.Add(new Trans() { Code = "30", Text = "权益积分撤销" });
            result.Add(new Trans() { Code = "32", Text = "卡转出转账" });
            result.Add(new Trans() { Code = "33", Text = "财务报销" });
            result.Add(new Trans() { Code = "34", Text = "财务还款" });
            result.Add(new Trans() { Code = "60", Text = "聚合支付被扫 " });
            result.Add(new Trans() { Code = "61", Text = "聚合支付主扫" });
            result.Add(new Trans() { Code = "62", Text = "聚合支付退货 " });
            result.Add(new Trans() { Code = "72", Text = "聚合支付异常订单查询" });
            result.Add(new Trans() { Code = "90", Text = "惠兜圈优惠立减银行卡" });
            result.Add(new Trans() { Code = "91", Text = "惠兜圈优惠立减微信/支付宝被扫" });
            result.Add(new Trans() { Code = "92", Text = "惠兜圈优惠立减支付宝主扫" });
            result.Add(new Trans() { Code = "93", Text = "惠兜圈优惠立减微信主扫" });
            result.Add(new Trans() { Code = "94", Text = "惠兜圈立减优惠银联二维码" });
            result.Add(new Trans() { Code = "95", Text = "云闪付优惠立减交易" });
            result.Add(new Trans() { Code = "96", Text = "商场分期优惠立减" });
            return result;
        }
    }
}