通过明华读卡器读取IC卡的数据，并将数据通过HTTP传递

#通过明华读卡器读取IC卡的数据，并将数据通过HTTP传递| 来源: 网络整理| 查看: 265

　　　　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

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($"接到新的请求:{guid},时间：{DateTime.Now.ToString()}"); //获得context对象 var context = httpobj.EndGetContext(ar); var request = context.Request; var response = context.Response; ////如果是js的ajax请求，还可以设置跨域的ip地址与参数 //context.Response.AppendHeader("Access-Control-Allow-Origin", "*");//后台跨域请求，通常设置为配置文件 //context.Response.AppendHeader("Access-Control-Allow-Headers", "ID,PW");//后台跨域参数设置，通常设置为配置文件 //context.Response.AppendHeader("Access-Control-Allow-Method", "post");//后台跨域请求设置，通常设置为配置文件 context.Response.ContentType = "text/plain;";//告诉客户端返回的ContentType类型为纯文本格式，编码为UTF-8 context.Response.AddHeader("Content-type", "text/plain;charset=UTF-8");//添加响应头信息 context.Response.ContentEncoding = Encoding.UTF8; string returnObj = null;//定义返回客户端的信息 if (request.HttpMethod == "POST" && request.InputStream != null) { //处理客户端发送的请求并返回处理信息 returnObj = HandleRequest(request, response); } else { bt2_Click(); bt3_Click(); bt4_Click(); returnObj = msg + "\r\n" + msg2 + "\r\n" + msg3 + "\r\n" + msg4; } var returnByteArr = Encoding.UTF8.GetBytes(returnObj);//设置客户端返回信息的编码 try { using (var stream = response.OutputStream) { //把处理信息返回到客户端 stream.Write(returnByteArr, 0, returnByteArr.Length); } } catch (Exception ex) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine($"网络蹦了：{ex.ToString()}"); } Console.ForegroundColor = ConsoleColor.Yellow; Console.WriteLine($"请求处理完成：{guid},时间：{ DateTime.Now.ToString()}\r\n"); } private static string HandleRequest(HttpListenerRequest request, HttpListenerResponse response) { string data = null; try { var byteList = new List(); var byteArr = new byte[2048]; int readLen = 0; int len = 0; //接收客户端传过来的数据并转成字符串类型 do { readLen = request.InputStream.Read(byteArr, 0, byteArr.Length); len += readLen; byteList.AddRange(byteArr); } while (readLen != 0); data = Encoding.UTF8.GetString(byteList.ToArray(), 0, len); //获取得到数据data可以进行其他操作 } catch (Exception ex) { response.StatusDescription = "404"; response.StatusCode = 404; Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine($"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ASCⅡ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

【本文地址】

公司简介

联系我们