概述

一般来说winform应用程序解决这个问题起来时很容易的，web应用程序就麻烦一点了。你必要有联机型居民身份证阅读器一个。

实现方式

1、新建一个winform控件项目ReadCardControl，添加一个主类ReadIDCard

 private bool ReadIDCard() { try { BLL.API.SynIDCardAPI.IDCardData CardMsg = new BLL.API.SynIDCardAPI.IDCardData(); int nRet, nPort; byte[] pucIIN = new byte[4]; byte[] pucSN = new byte[8]; nPort = Convert.ToInt32(1001); if (BLL.API.SynIDCardAPI.Syn_OpenPort(nPort) == 0) { if (BLL.API.SynIDCardAPI.Syn_SetMaxRFByte(nPort, 80, 0) == 0) {
 nRet = BLL.API.SynIDCardAPI.Syn_StartFindIDCard(nPort, ref pucIIN[0], 0); nRet = BLL.API.SynIDCardAPI.Syn_SelectIDCard(nPort, ref pucSN[0], 0); nRet = BLL.API.SynIDCardAPI.Syn_ReadMsg(nPort, 0, ref CardMsg); if (nRet == 0) { txtAddress.Text = CardMsg.Address;  txtBirthday.Text = CardMsg.Born; txtCerticate.Text = CardMsg.IDCardNo;  txtIssuingAuthoriy.Text = CardMsg.GrantDept; txtNames.Text = CardMsg.Name; txtNation.Text = Xw.Common.Helper.NationHelper.GetNationByNO(CardMsg.Nation); txtSex.Text = CardMsg.Sex == "1" ? "男" : "女"; picMan.Image = Image.FromFile(CardMsg.PhotoFileName); //lblMsg.Text = "读卡成功"; return true; } else { lblMsg.Text = "请放卡: 读取身份证信息错误"; return false; } } } else { lblMsg.Text = "打开端口失败"; return false; } return true; } catch (Exception ex) { Xw.Common.Helper.LogHelper.WriteErrorToLog(ex.Message); return false; } }

2、声明DllImport，调用动态链接库

 public class SynIDCardAPI { #region IDCardData [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)] public struct IDCardData { [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] //结构中使用的字串，[]类似限定说明 说明此公共结构传输到非托管代码时封装定义 public string Name; //姓名  [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 6)] public string Sex; //性别 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20)] public string Nation; //名族 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)] public string Born; //出生日期 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 72)] public string Address; //住址 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 38)] public string IDCardNo; //身份证号 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string GrantDept; //发证机关 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)] public string UserLifeBegin; // 有效开始日期 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)] public string UserLifeEnd; // 有效截止日期 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 38)] public string reserved; // 保留 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 255)] public string PhotoFileName; // 照片路径 } #endregion #region SynIDCardAPI /************************端口类API *************************/ [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetMaxRFByte", CharSet = CharSet.Ansi)] public static extern int Syn_SetMaxRFByte(int iPort, byte ucByte, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_GetCOMBaud", CharSet = CharSet.Ansi)] public static extern int Syn_GetCOMBaud(int iPort, ref uint puiBaudRate); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetCOMBaud", CharSet = CharSet.Ansi)] public static extern int Syn_SetCOMBaud(int iPort, uint uiCurrBaud, uint uiSetBaud); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_OpenPort", CharSet = CharSet.Ansi)] public static extern int Syn_OpenPort(int iPort); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ClosePort", CharSet = CharSet.Ansi)] public static extern int Syn_ClosePort(int iPort); /**************************SAM类函数 **************************/ [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ResetSAM", CharSet = CharSet.Ansi)] public static extern int Syn_ResetSAM(int iPort, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMStatus", CharSet = CharSet.Ansi)] public static extern int Syn_GetSAMStatus(int iPort, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMID", CharSet = CharSet.Ansi)] public static extern int Syn_GetSAMID(int iPort, ref byte pucSAMID, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMIDToStr", CharSet = CharSet.Ansi)] public static extern int Syn_GetSAMIDToStr(int iPort, ref byte pcSAMID, int iIfOpen); /*************************身份证卡类函数 ***************************/ [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_StartFindIDCard", CharSet = CharSet.Ansi)] public static extern int Syn_StartFindIDCard(int iPort, ref byte pucIIN, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SelectIDCard", CharSet = CharSet.Ansi)] public static extern int Syn_SelectIDCard(int iPort, ref byte pucSN, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadBaseMsg", CharSet = CharSet.Ansi)] public static extern int Syn_ReadBaseMsg(int iPort, ref byte pucCHMsg, ref uint puiCHMsgLen, ref byte pucPHMsg, ref uint puiPHMsgLen, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadIINSNDN", CharSet = CharSet.Ansi)] public static extern int Syn_ReadIINSNDN(int iPort, ref byte pucIINSNDN, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadBaseMsgToFile", CharSet = CharSet.Ansi)] public static extern int Syn_ReadBaseMsgToFile(int iPort, ref byte pcCHMsgFileName, ref uint puiCHMsgFileLen, ref byte pcPHMsgFileName, ref uint puiPHMsgFileLen, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadIINSNDNToASCII", CharSet = CharSet.Ansi)] public static extern int Syn_ReadIINSNDNToASCII(int iPort, ref byte pucIINSNDN, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadNewAppMsg", CharSet = CharSet.Ansi)] public static extern int Syn_ReadNewAppMsg(int iPort, ref byte pucAppMsg, ref uint puiAppMsgLen, int iIfOpen); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_GetBmp", CharSet = CharSet.Ansi)] public static extern int Syn_GetBmp(int iPort, ref byte Wlt_File); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_ReadMsg", CharSet = CharSet.Ansi)] public static extern int Syn_ReadMsg(int iPortID, int iIfOpen, ref IDCardData pIDCardData); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_FindReader", CharSet = CharSet.Ansi)] public static extern int Syn_FindReader(); /***********************设置附加功能函数 ************************/ [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoPath", CharSet = CharSet.Ansi)] public static extern int Syn_SetPhotoPath(int iOption, ref byte cPhotoPath); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoType", CharSet = CharSet.Ansi)] public static extern int Syn_SetPhotoType(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoName", CharSet = CharSet.Ansi)] public static extern int Syn_SetPhotoName(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetSexType", CharSet = CharSet.Ansi)] public static extern int Syn_SetSexType(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetNationType", CharSet = CharSet.Ansi)] public static extern int Syn_SetNationType(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetBornType", CharSet = CharSet.Ansi)] public static extern int Syn_SetBornType(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetUserLifeBType", CharSet = CharSet.Ansi)] public static extern int Syn_SetUserLifeBType(int iType); [DllImport("SynIDCardAPI.dll", EntryPoint = "Syn_SetUserLifeEType", CharSet = CharSet.Ansi)] public static extern int Syn_SetUserLifeEType(int iType, int iOption);
 #endregion }

3、读取显示相关的信息

 txtAddress.Text = CardMsg.Address;  txtBirthday.Text = CardMsg.Born; txtCerticate.Text = CardMsg.IDCardNo;  txtIssuingAuthoriy.Text = CardMsg.GrantDept; txtNames.Text = CardMsg.Name; txtNation.Text = Xw.Common.Helper.NationHelper.GetNationByNO(CardMsg.Nation); txtSex.Text = CardMsg.Sex == "1" ? "男" : "女"; picMan.Image = Image.FromFile(CardMsg.PhotoFileName); //lblMsg.Text = "读卡成功"; return true;