ASP.NET程序读取二代身份证（附源码）

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。【示例源码下载】
这里我说说我的解决思路：
一、你必要有联机型居民身份证阅读器一个（带驱动光盘），这里我用的是精伦电子公司的iDR200,并有这个阅读器的开发接口说明。
二、新建一个winform控件项目ReadCardControl，添加一个主类ReadCard
1、 声明dll入口

[DllImport("Sdtapi.dll")]
        private static extern int InitComm(int iPort);//初始化
        [DllImport("Sdtapi.dll")]
        private static extern int Authenticate();//卡认证
        [DllImport("Sdtapi.dll")]
        private static extern int ReadBaseInfos(StringBuilder Name, StringBuilder Gender, StringBuilder Folk, StringBuilder BirthDay, StringBuilder Code, StringBuilder Address, StringBuilder Agency, StringBuilder ExpireStart, StringBuilder ExpireEnd);//读取数据，推荐使用
        [DllImport("Sdtapi.dll")]
        private static extern int CloseComm();//关闭端口
        [DllImport("Sdtapi.dll")]
        private static extern int ReadBaseMsg(byte[] pMsg, ref int len);//读取数据，这里不用
        [DllImport("Sdtapi.dll")]
        private static extern int ReadBaseMsgW(byte[] pMsg, ref int len);//读取数据，这里不用
        [DllImport("kernel32.dll")]
        private static extern int Beep(int dwFreq, int dwDuration);//用来大吼一声

2、读卡方法

private string[] arrys = null;//声明用来保存身份证信息的数组
       public void OnTimer()
       {
           StringBuilder Name = new StringBuilder(31);
           StringBuilder Gender = new StringBuilder(3);
           StringBuilder Folk = new StringBuilder(10);
           StringBuilder BirthDay = new StringBuilder(9);
           StringBuilder Code = new StringBuilder(19);
           StringBuilder Address = new StringBuilder(71);
           StringBuilder Agency = new StringBuilder(31);
           StringBuilder ExpireStart = new StringBuilder(9);
           StringBuilder ExpireEnd = new StringBuilder(9);
           //int len = 0;
           //string[] temp;
           char[] param = { '\0' };
           byte[] pMsg = new byte[256];
           string[] baseinfo = new string[9];

           //打开端口
           int intOpenRet = InitComm(1001);
           if (intOpenRet != 1)
           {
               //SetText("阅读机具未连接", lblMsg);
               return;
           }
           //卡认证
           int intReadRet = Authenticate();
           if (intReadRet != 1)
           {
               //SetText("卡认证失败", lblMsg);
               CloseComm();
               return;
           }
           //ReadBaseInfos（推荐使用）
           int intReadBaseInfosRet = ReadBaseInfos(Name, Gender, Folk, BirthDay, Code, Address, Agency, ExpireStart, ExpireEnd);
           if (intReadBaseInfosRet != 1)
           {
               //SetText("读卡失败", lblMsg);
               CloseComm();
               return;
           }
           Beep(2047, 200);
           arrys = new string[10];
           arrys[0] = Code.ToString().Trim();
           arrys[1] = Name.ToString().Trim();
           arrys[2] = Gender.ToString().Trim();
           arrys[3] = Folk.ToString().Trim();
           arrys[4] = BirthDay.ToString().Trim();
           arrys[5] = Address.ToString().Trim();
           arrys[6] = Agency.ToString().Trim();
           arrys[7] = ExpireStart.ToString().Trim();
           arrys[8] = ExpireEnd.ToString().Trim();
           arrys[9] = System.IO.Directory.GetCurrentDirectory() + "\\photo.bmp";
           //SetText("读卡成功", lblMsg);
           //SetText("证件号码：" + Code.ToString(), label1);
           //SetText("姓名：" + Name.ToString(), label2);
           //SetText("性别：" + Gender.ToString(), label3);
           //SetText("民族：" + Folk.ToString(), label4);
           //SetText("出生日期：" + BirthDay.ToString(), label5);
           //SetText("地址：" + Address.ToString(), label6);
           //SetText("签发机关：" + Agency.ToString(), label7);
           //SetText("签发时间：" + ExpireStart.ToString(), label8);
           //SetText("有效截止时间：" + ExpireEnd.ToString(), label9);
           SetImage("photo.bmp", pictureBox1);
           CloseComm();
       }

3、 声明一个客户端调用的方法Test（这里没有直接用数组，我试的结果是节目不能调用数组）

public string Test()
        {
            string str = "";
            foreach (string s in arrys)
            {
                str += s + ",";
            }
            str = str.TrimEnd(',');
            return str;
}

三、将这个控件封装成activex组件
在ReadCard类的头部添加

[Guid("B9BB196C-5008-4156-840F-9FE37BA81502")]

若要实现客户端访问服务器端数据，则必须实现IObjectSafe接口
接口声明如下：

[ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8F20-00805F2CD064")]
    [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IObjectSafe
    {
        [PreserveSig]
        void GetInterfaceSafeOptions(ref Guid id, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);

        [PreserveSig()]
        void SetInterfaceSafeOptions(ref Guid id, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);
}
 #region UI设计
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region 组件设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            //
            // pictureBox1
            //
            this.pictureBox1.Location = new System.Drawing.Point(3, 3);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(100, 130);
            this.pictureBox1.TabIndex = 12;
            this.pictureBox1.TabStop = false;
            //
            // ReadCard
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.Controls.Add(this.pictureBox1);
            this.Name = "ReadCard";
            this.Size = new System.Drawing.Size(107, 135);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.PictureBox pictureBox1;

        #endregion

四、新建一个web应用程序项目
1、界面：

<table style="width:100%;" border="1" width="100%" bordercolordark="#FFFFFF" cellspacing="0" cellpadding="2" bordercolor="#000000">
           <tr>
               <td style="width:33.3%; text-align: right;">证件号码：</td>
               <td style="width:33.3%" id="td1">&nbsp;</td>
               <td style="width:33.3%; text-align: left;" rowspan="6">
                        <object id="csharpActiveX" name="csharpActiveX" classid="clsid:B9BB196C-5008-4156-840F-9FE37BA81502"></object></td>
           </tr>
           <tr>
               <td style="text-align: right">姓名：</td>
               <td id="td2">&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">性别：</td>
               <td id="td3">&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">民族：</td>
               <td id="td4">&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">出生日期：</td>
               <td id="td5">&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">地址：</td>
               <td id="td6">&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">签发机关：</td>
               <td id="td7">&nbsp;</td>
               <td>&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">签发时间：</td>
               <td id="td8">&nbsp;</td>
               <td>&nbsp;</td>
           </tr>
           <tr>
               <td style="text-align: right">有效截止时间：</td>
               <td id="td9">&nbsp;</td>
               <td>&nbsp;</td>
           </tr>
       </table>

2、Javascript代码：

function Demo() {
         try {
             var x = document.getElementById("csharpActiveX");
             x.OnTimer();//读取图片
             var v = x.Test();//读取身份证其他信息
             var arrys = v.split(',');
             if (arrys.length > 9) {
                 document.getElementById("td1").innerHTML = arrys[0];
                 document.getElementById("td2").innerHTML = arrys[1];
                 document.getElementById("td3").innerHTML = arrys[2];
                 document.getElementById("td4").innerHTML = arrys[3];
                 document.getElementById("td5").innerHTML = arrys[4];
                 document.getElementById("td6").innerHTML = arrys[5];
                 document.getElementById("td7").innerHTML = arrys[6];
                 document.getElementById("td8").innerHTML = arrys[7];
                 document.getElementById("td9").innerHTML = arrys[8];
             }
         }
         catch (e) {
             //alert(e.message)
         }
     }
     setInterval(Demo, 1000);//设置每隔1秒钟读取一次

截个效果图：