实例介绍
【实例简介】含视频讲解，但是得自建数据库
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
namespace Kuade.Framework
{
/// <summary>
/// 读卡器操作类
/// </summary>
public class CardReader
{
#region 刷卡器
[DllImport("kernel32.dll")]
static extern void Sleep(int dwMilliseconds);
//=========================== System Function =============================
[DllImport("hfrdapi.dll")]
static extern int Sys_GetDeviceNum(UInt16 vid, UInt16 pid, ref UInt32 pNum);
[DllImport("hfrdapi.dll")]
static extern int Sys_GetHidSerialNumberStr(UInt32 deviceIndex, UInt16 vid, UInt16 pid, ref Char deviceString, UInt32 deviceStringLength);
/// <summary>
/// 打开读卡器
/// </summary>
/// <param name="device"></param>
/// <param name="index"></param>
/// <param name="vid"></param>
/// <param name="pid"></param>
/// <returns></returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_Open(ref IntPtr device,
UInt32 index,
UInt16 vid,
UInt16 pid);
/// <summary>
/// 判断读卡器是否已经打开
/// </summary>
/// <param name="device"></param>
/// <returns></returns>
[DllImport("hfrdapi.dll")]
static extern bool Sys_IsOpen(IntPtr device);
/// <summary>
/// 关闭读卡器
/// </summary>
/// <param name="device"></param>
/// <returns></returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_Close(ref IntPtr device);
/// <summary>
/// 指示灯管理
/// </summary>
/// <param name="device">要操作的设备，由Sys_Open()获得</param>
/// <param name="color">0：熄灭；1：红色；2：绿色；3：黄色</param>
/// <returns>0：操作成功</returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_SetLight(IntPtr device, byte color);
/// <summary>
/// 设置蜂鸣器
/// </summary>
/// <param name="device">要操作的设备，由Sys_Open()获得</param>
/// <param name="msec">蜂鸣时限，单位是10毫秒</param>
/// <returns></returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_SetBuzzer(IntPtr device, byte msec);
/// <summary>
/// 设置天线状态
/// </summary>
/// <param name="device"></param>
/// <param name="mode"></param>
/// <returns></returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_SetAntenna(IntPtr device, byte mode);
/// <summary>
/// 功能：设置读写器非接触工作方式
/// </summary>
/// <param name="device">要操作的设备，由Sys_Open()获得</param>
/// <param name="type">'A':ISO14443A；'B':ISO14443B；'r':AT88RF020；'s':ST卡；'1':ISO15693
/// </param>
/// <returns>0 -> 操作成功</returns>
[DllImport("hfrdapi.dll")]
static extern int Sys_InitType(IntPtr device, byte type);
//=========================== M1 Card Function =============================
[DllImport("hfrdapi.dll")]
static extern int TyA_Request(IntPtr device, byte mode, ref UInt16 pTagType);
[DllImport("hfrdapi.dll")]
static extern int TyA_Anticollision(IntPtr device,
byte bcnt,
byte[] pSnr,
ref byte pLen);
[DllImport("hfrdapi.dll")]
static extern int TyA_Select(IntPtr device,
byte[] pSnr,
byte snrLen,
ref byte pSize);
[DllImport("hfrdapi.dll")]
static extern int TyA_Halt(IntPtr device);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Authentication2(IntPtr device,
byte mode,
byte block,
byte[] pKey);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Read(IntPtr device,
byte block,
byte[] pData,
ref byte pLen);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Write(IntPtr device, byte block, byte[] pData);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_InitValue(IntPtr device, byte block, Int32 value);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_ReadValue(IntPtr device, byte block, ref Int32 pValue);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Decrement(IntPtr device, byte block, Int32 value);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Increment(IntPtr device, byte block, Int32 value);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Restore(IntPtr device, byte block);
[DllImport("hfrdapi.dll")]
static extern int TyA_CS_Transfer(IntPtr device, byte block);
//==========================================================================
IntPtr g_hDevice = (IntPtr)(-1); //g_hDevice must init as -1
static char[] hexDigits = {
'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
/// <summary>
///
/// </summary>
/// <param name="ch"></param>
/// <returns></returns>
public static byte GetHexBitsValue(byte ch)
{
byte sz = 0;
if (ch <= '9' && ch >= '0')
sz = (byte)(ch - 0x30);
if (ch <= 'F' && ch >= 'A')
sz = (byte)(ch - 0x37);
if (ch <= 'f' && ch >= 'a')
sz = (byte)(ch - 0x57);
return sz;
}
#region byteHEX
/// <summary>
/// 单个字节转字字符.
/// </summary>
/// <param name="ib">字节.</param>
/// <returns>转换好的字符.</returns>
public static string byteHEX(Byte ib)
{
string _str = string.Empty;
try
{
char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A',
'B', 'C', 'D', 'E', 'F' };
char[] ob = new char[2];
ob[0] = Digit[(ib >> 4) & 0X0F];
ob[1] = Digit[ib & 0X0F];
_str = new String(ob);
}
catch (Exception ex)
{
new Exception("对不起有错。");
}
return _str;
}
#endregion
/// <summary>
///
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static string ToHexString(byte[] bytes)
{
string hexString = string.Empty;
for (var i = 0; i < bytes.Length; i )
hexString = byteHEX(bytes[i]);
return hexString;
}
/// <summary>
///
/// </summary>
/// <param name="theHex"></param>
/// <returns></returns>
public static byte[] ToDigitsBytes(string theHex)
{
byte[] bytes = new byte[theHex.Length / 2 (((theHex.Length % 2) > 0) ? 1 : 0)];
for (var i = 0; i < bytes.Length; i )
{
char lowbits = theHex[i * 2];
char highbits;
if ((i * 2 1) < theHex.Length)
{
highbits = theHex[i * 2 1];
}
else
{
highbits = '0';
}
int a = (int)GetHexBitsValue((byte)lowbits);
int b = (int)GetHexBitsValue((byte)highbits);
bytes[i] = (byte)((a << 4) b);
}
return bytes;
}
#endregion
/// <summary>
/// 打开读卡器
/// </summary>
/// <returns></returns>
public bool Open()
{
try
{
string strError = "";
int status = 0;
//如果读卡器已经打开，则先关闭读卡器
if (Sys_IsOpen(g_hDevice) == true)
{
status = Sys_Close(ref g_hDevice);
if (status != 0)
{
strError = "Sys_Close failed !";
return false;
}
}
//连接读卡器
status = Sys_Open(ref g_hDevice, 0, 0x0416, 0x8020);
if (status != 0)
{
strError = "Sys_Open failed !";
return false;
}
//设置读卡器读卡类型
status = Sys_InitType(g_hDevice, (byte)'A');
if (status != 0)
{
strError = "Sys_InitType failed !";
return false;
}
Sleep(5); //Appropriate delay after Sys_InitType operating
//设置读写器天线状态
status = Sys_SetAntenna(g_hDevice, 1);
if (status != 0)
{
strError = "Sys_SetAntenna failed !";
return false;
}
Sleep(5); //Appropriate delay after Sys_SetAntenna operating
return true;
}
catch (Exception ex)
{
return false;
}
}
/// <summary>
/// 关闭读卡器
/// </summary>
public void Close()
{
Sys_Close(ref g_hDevice);
}
/// <summary>
/// 蜂鸣
/// </summary>
public void Beep()
{
//蜂鸣，单位为10ms
Sys_SetBuzzer(g_hDevice, 20);
}
/// <summary>
/// 设置指示灯颜色
/// </summary>
public void SetLight(Color color)
{
byte lightColor = 1;
if (color == Color.Red)
{
lightColor = 1;
}
else if (color == Color.Green)
{
lightColor = 2;
}
else if (color == Color.Yellow)
{
lightColor = 3;
}
else if (color == Color.Black)
{
lightColor = 0;
}
//0：熄灭；1：红色；2：绿色；3：黄色
Sys_SetLight(g_hDevice, lightColor);
}
string CardID = ""; //卡号
DateTime LastReadTime = DateTime.Now; //上次读取时间
/// <summary>
/// 读卡
/// </summary>
/// <returns></returns>
public string Read()
{
try
{
string strError = "";
int status = 0;
//如果读卡器已经打开，则先关闭读卡器
if (Sys_IsOpen(g_hDevice) == false)
{
var IsOpen = Open();
if (IsOpen == false)
{
strError = "读卡器连接失败!";
return "";
}
}
byte mode = 0x52;
ushort TagType = 0;
byte bcnt = 0x04;//mifare 卡都用4
byte[] dataBuffer = new byte[256];
byte len = 255;
byte size = 0;
status = TyA_Request(g_hDevice, mode, ref TagType);//搜寻所有的卡
if (status != 0)
{
return "";
}
status = TyA_Anticollision(g_hDevice, bcnt, dataBuffer, ref len);//返回卡的序列号
if (status != 0)
{
return "";
}
status = TyA_Select(g_hDevice, dataBuffer, len, ref size);//锁定一张ISO14443-3 TYPE_A 卡
if (status != 0)
{
return "";
}
string NewID = "";
for (int q = 0; q < len; q )
{
NewID = byteHEX(dataBuffer[q]);
}
if (NewID != CardID || (DateTime.Now - LastReadTime).TotalSeconds > 5)
{
LastReadTime = DateTime.Now;
CardID = NewID;
//蜂鸣，单位为10ms
status = Sys_SetBuzzer(g_hDevice, 20);
if (status != 0)
{
strError = "Sys_SetBuzzer failed !";
return "";
}
return NewID;
}
}
catch (Exception ex)
{
}
return "";
}
}
}
标签： 系统
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