通过明华读卡器读取IC卡的数据，并将数据通过HTTP传递

　　　　背景：Vue调用硬件比较麻烦，通过明华读卡器读取IC卡的数据，封装成一个HTTP，其他人只需要调用HTTP就可以读取IC卡。

Demo效果图：

 

 

 

一.c# 通过HttpListener创建HTTP服务

在c#中可以利用HttpListener来自定义创建HTTP服务，通过http协议进行服务端与多个客户端之间的信息传递，并且可以做成windows系统服务，而不用寄宿在IIS上。

二.使用明华读卡器，需要把mwrf32.dll放在在根目录里（与.exe同一目录，可去官网下载）

1.读IC卡数据需要五步

连接读卡器、加载密码,此密码是用来验证卡片的密码、寻卡、验证密码、读数据

2.一片对应四区，如果密码验证错误就会读不出数据，比如2对应8

 var stcode = rf_authentication(icdev, 0, 2);  //验证密码

 var  st = rf_read_hex(icdev, 8, databuffer);  //读数据

三、源码

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379

public partial class MainWindow : Window    {  //变量        public static IntPtr icdev = IntPtr.Zero;        static HttpListener httpobj;        //static byte sector;  //扇区号        public static string msg;        public static string msg2;        public static string msg3;        public static string msg4;        public MainWindow()        {            InitializeComponent();            //提供一个简单的、可通过编程方式控制的 HTTP 协议侦听器。此类不能被继承。            httpobj = new HttpListener();            //定义url及端口号，通常设置为配置文件            httpobj.Prefixes.Add("http://127.0.0.1/ReadIC/");            //启动监听器            httpobj.Start();            //异步监听客户端请求，当客户端的网络请求到来时会自动执行Result委托            //该委托没有返回值，有一个IAsyncResult接口的参数，可通过该参数获取context对象            httpobj.BeginGetContext(Result, null);            bt1_Click();               }        private static void Result(IAsyncResult ar)        {            //当接收到请求后程序流会走到这里            //继续异步监听            httpobj.BeginGetContext(Result, null);            var guid = Guid.NewGuid().ToString();            Console.ForegroundColor = ConsoleColor.White;            Console.WriteLine($"接到新的请求:{guid},时间：{DateTime.Now.ToString()}");            //获得context对象            var context = httpobj.EndGetContext(ar);            var request = context.Request;            var response = context.Response;            ////如果是js的ajax请求，还可以设置跨域的ip地址与参数            //context.Response.AppendHeader("Access-Control-Allow-Origin", "*");//后台跨域请求，通常设置为配置文件            //context.Response.AppendHeader("Access-Control-Allow-Headers", "ID,PW");//后台跨域参数设置，通常设置为配置文件            //context.Response.AppendHeader("Access-Control-Allow-Method", "post");//后台跨域请求设置，通常设置为配置文件            context.Response.ContentType = "text/plain;charset=UTF-8";//告诉客户端返回的ContentType类型为纯文本格式，编码为UTF-8            context.Response.AddHeader("Content-type", "text/plain;charset=UTF-8");//添加响应头信息            context.Response.ContentEncoding = Encoding.UTF8;            string returnObj = null;//定义返回客户端的信息            if (request.HttpMethod == "POST" && request.InputStream != null)            {                //处理客户端发送的请求并返回处理信息                returnObj = HandleRequest(request, response);            }            else            {                bt2_Click();                bt3_Click();                bt4_Click();                returnObj = msg + "\r\n" + msg2 + "\r\n" + msg3 + "\r\n" + msg4;              }            var returnByteArr = Encoding.UTF8.GetBytes(returnObj);//设置客户端返回信息的编码            try            {                using (var stream = response.OutputStream)                {                    //把处理信息返回到客户端                    stream.Write(returnByteArr, 0, returnByteArr.Length);                }            }            catch (Exception ex)            {                Console.ForegroundColor = ConsoleColor.Red;                Console.WriteLine($"网络蹦了：{ex.ToString()}");            }            Console.ForegroundColor = ConsoleColor.Yellow;            Console.WriteLine($"请求处理完成：{guid},时间：{ DateTime.Now.ToString()}\r\n");        }        private static string HandleRequest(HttpListenerRequest request, HttpListenerResponse response)        {            string data = null;            try            {                var byteList = new List<byte>();                var byteArr = new byte[2048];                int readLen = 0;                int len = 0;                //接收客户端传过来的数据并转成字符串类型                do                {                    readLen = request.InputStream.Read(byteArr, 0, byteArr.Length);                    len += readLen;                    byteList.AddRange(byteArr);                } while (readLen != 0);                data = Encoding.UTF8.GetString(byteList.ToArray(), 0, len);                //获取得到数据data可以进行其他操作            }            catch (Exception ex)            {                response.StatusDescription = "404";                response.StatusCode = 404;                Console.ForegroundColor = ConsoleColor.Red;                Console.WriteLine($"在接收数据时发生错误:{ex.ToString()}");                return $"在接收数据时发生错误:{ex.ToString()}";//把服务端错误信息直接返回可能会导致信息不安全，此处仅供参考            }            response.StatusDescription = "200";//获取或设置返回给客户端的 HTTP 状态代码的文本说明。            response.StatusCode = 200;// 获取或设置返回给客户端的 HTTP 状态代码。            Console.ForegroundColor = ConsoleColor.Green;            Console.WriteLine($"接收数据完成:{data.Trim()},时间：{DateTime.Now.ToString()}");            return $"接收数据完成";        }          [DllImport("mwrf32.dll", EntryPoint = "rf_init", SetLastError = true,                     CharSet = CharSet.Auto, ExactSpelling = false,                     CallingConvention = CallingConvention.StdCall)]        public static extern IntPtr rf_init(Int16 port, int baud);        [DllImport("mwrf32.dll", EntryPoint = "usb_init", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern IntPtr usb_init();        [DllImport("mwrf32.dll", EntryPoint = "rf_exit", SetLastError = true,               CharSet = CharSet.Auto, ExactSpelling = false,               CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_exit(IntPtr icdev);          [DllImport("mwrf32.dll", EntryPoint = "rf_beep", SetLastError = true,               CharSet = CharSet.Auto, ExactSpelling = false,               CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_beep(IntPtr icdev, int msec);          [DllImport("mwrf32.dll", EntryPoint = "rf_get_status", SetLastError = true,              CharSet = CharSet.Auto, ExactSpelling = false,              CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_get_status(IntPtr icdev, byte[] state);          [DllImport("mwrf32.dll", EntryPoint = "rf_load_key", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_load_key(IntPtr icdev, byte mode, byte secnr, byte[] keybuff);          [DllImport("mwrf32.dll", EntryPoint = "rf_load_key_hex", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_load_key_hex(IntPtr icdev, byte mode, byte secnr, byte[] keybuff);            [DllImport("mwrf32.dll", EntryPoint = "a_hex", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 a_hex(byte[] asc, byte[] hex, Int16 len);          [DllImport("mwrf32.dll", EntryPoint = "hex_a", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 hex_a(byte[] hex, byte[] asc, Int16 len);          [DllImport("mwrf32.dll", EntryPoint = "rf_reset", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_reset(IntPtr icdev, Int16 msec);          [DllImport("mwrf32.dll", EntryPoint = "rf_request", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_request(IntPtr icdev, byte mode, out UInt16 tagtype);            [DllImport("mwrf32.dll", EntryPoint = "rf_anticoll", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_anticoll(IntPtr icdev, byte bcnt, out UInt32 snr);          [DllImport("mwrf32.dll", EntryPoint = "rf_select", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_select(IntPtr icdev, UInt32 snr, out byte size);          [DllImport("mwrf32.dll", EntryPoint = "rf_card", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_card(IntPtr icdev, byte mode, byte[] snr); //这里将第三个参数设置为byte数组，以便直接返回16进制卡号        //public static extern Int16 rf_card(IntPtr icdev, int mode, out UInt32 snr);          [DllImport("mwrf32.dll", EntryPoint = "rf_authentication", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_authentication(IntPtr icdev, byte mode, byte secnr);          [DllImport("mwrf32.dll", EntryPoint = "rf_authentication_2", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_authentication_2(IntPtr icdev, byte mode, byte keynr, byte blocknr);          [DllImport("mwrf32.dll", EntryPoint = "rf_read", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_read(IntPtr icdev, byte blocknr, byte[] databuff);          [DllImport("mwrf32.dll", EntryPoint = "rf_read_hex", SetLastError = true,          CharSet = CharSet.Auto, ExactSpelling = false,          CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_read_hex(IntPtr icdev, byte blocknr, byte[] databuff);          [DllImport("mwrf32.dll", EntryPoint = "rf_write_hex", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_write_hex(IntPtr icdev, int blocknr, byte[] databuff);          [DllImport("mwrf32.dll", EntryPoint = "rf_write", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_write(IntPtr icdev, byte blocknr, byte[] databuff);          [DllImport("mwrf32.dll", EntryPoint = "rf_halt", SetLastError = true,             CharSet = CharSet.Auto, ExactSpelling = false,             CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_halt(IntPtr icdev);          [DllImport("mwrf32.dll", EntryPoint = "rf_changeb3", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_changeb3(IntPtr icdev, byte sector, byte[] keya, byte B0, byte B1,              byte B2, byte B3, byte Bk, byte[] keyb);          [DllImport("mwrf32.dll", EntryPoint = "rf_pro_rst", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_pro_rst(IntPtr icdev, byte[] _Data);          [DllImport("mwrf32.dll", EntryPoint = "rf_pro_trn", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_pro_trn(IntPtr icdev, byte[] problock, byte[] recv);          [DllImport("mwrf32.dll", EntryPoint = "rf_ctl_mode", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_ctl_mode(IntPtr icdev, byte mode);    //受控方式          [DllImport("mwrf32.dll")]        public static extern Int16 rf_setbright(IntPtr icdev, byte bright);          [DllImport("mwrf32.dll")]        public static extern Int16 rf_disp_mode(IntPtr icdev, byte mode);          [DllImport("mwrf32.dll")]        public static extern Int16 rf_settime(IntPtr icdev, byte[] time);          [DllImport("mwrf32.dll", EntryPoint = "rf_ctl_mode", SetLastError = true,            CharSet = CharSet.Ansi, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_settimehex(IntPtr icdev, string time);            [DllImport("mwrf32.dll", EntryPoint = "rf_CtlBackLight", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_CtlBackLight(IntPtr icdev, byte cOpenFlag); //控制背光          [DllImport("mwrf32.dll", EntryPoint = "rf_LcdClrScrn", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_LcdClrScrn(IntPtr icdev, byte cLine);   //清LCD屏          [DllImport("mwrf32.dll", EntryPoint = "rf_DispMainMenu", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_DispMainMenu(IntPtr icdev);     //显示欢迎光临          [DllImport("mwrf32.dll", EntryPoint = "rf_DispLcd", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_DispLcd(IntPtr icdev, byte line, byte type);   //显示系统内置操作          [DllImport("mwrf32.dll", EntryPoint = "rf_DispInfo", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_DispInfo(IntPtr icdev, byte line, byte offset, byte[] data);  //显示信息，操作前需清屏          [DllImport("mwrf32.dll", EntryPoint = "rf_disp8", SetLastError = true,            CharSet = CharSet.Auto, ExactSpelling = false,            CallingConvention = CallingConvention.StdCall)]        public static extern Int16 rf_disp8(IntPtr icdev, Int16 disp_len, byte[] disp_str);  //在读写器数码管上显示数字          public void bt1_Click()        {            icdev = usb_init();  //连接设备            if (icdev.ToInt32() > 0)            {                  this.txt2.Text = "读卡器连接成功！";                msg = "已连接到读卡器.............";                byte[] status = new byte[30];                var st3 = rf_get_status(icdev, status);  //读取硬件版本号                //lbHardVer.Text=System.Text.Encoding.ASCII.GetString(status);                Console.WriteLine(System.Text.Encoding.Default.GetString(status));                rf_beep(icdev, 25);            }            else            {                this.txt2.Text = "未识别到到读卡器，请检查设备连接后重试！！！！！";                msg = "未识别到到读卡器，请检查设备连接后重试！！！！";            }        }          public static void bt2_Click()        {            byte[] key = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };            byte mode = 0;            //加载密码,此密码是用来验证卡片的密码            for (byte sector = 0; sector < 16; sector++)            {                var st1 = rf_load_key(icdev, mode, sector, key);                if (st1 != 0)                {                    string s1 = Convert.ToString(sector);                   // txt3.Text = s1 + " sector rf_load_key error!";                                   }            }              byte[] snr = new byte[5];  //卡片序列号            var st = rf_card(icdev, 0, snr);    //寻卡            if (st != 0)            {              //  txt3.Text = "未识别到IC卡！！！";                              msg2 = "未识别到IC卡！！！";            }            else            {                byte[] snr1 = new byte[8];               // txt3.Text = "识别到IC卡！！！！！" ;                                hex_a(snr, snr1, 4); //将卡号转换为16进制字符串                              msg2 = "识别到IC卡," + "IC卡号：" + System.Text.Encoding.Default.GetString(snr1);            }        }          public static void bt3_Click()        {            var stcode = rf_authentication(icdev, 0, 2);  //验证密码            if (stcode != 0)            {               // txt4.Text = "IC卡密码错误！！！！！";                               msg3 = "IC卡密码错误！！！";            }            else            {               // txt4.Text = "IC卡密码正确！！！！！";                               msg3 = "IC卡密码正确！！！";            }          }          public static void bt4_Click()        {            byte[] databuffer = new byte[32];            byte block = 8;          var  st = rf_read_hex(icdev, block, databuffer);  //读数据,此函数读出来的是16进制字符串，也就是把每个字节数据的16进制A​S​C​Ⅱ码以字符串形式输出            if (st != 0)            {               // txt5.Text = "读取IC卡数据失败!" + st.ToString();                               msg4 = "读取IC卡数据失败!   " + st.ToString();            }            else            {               // txt5.Text = "读取IC卡数据成功!" + System.Text.Encoding.Default.GetString(databuffer);                            msg4 = "读取IC卡数据成功!" + System.Text.Encoding.Default.GetString(databuffer);            }        }        private void Button_Click(object sender, RoutedEventArgs e)        {            bt2_Click();            bt3_Click();            bt4_Click();        }              }

 

参考：https://www.cnblogs.com/yijiayi/p/9867502.html