二代身份证读取-微调版-阿里云开发者社区

说起微调其实就是对上一篇文章今天意外和身份证结缘中提到的代码码放和调用一些巧妙的用法（至少小鬼觉得很有意思很巧妙）。

为什么有必要在写一篇写的理由千千万；不写的理由万万千。对于小鬼来说就是：我吃饱了,撑着了，该找点事做了。于是神情恍惚，目光呆滞的敲着键盘，陶醉的望着跳动的光标，嘴角上扬。

IDCardReader

 #region Using
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
#endregion

/// <summary>
/// 用于获取二代身份证的基本信息(包括图片)
/// 调用时确保 由厂商提供的API的动态链接库等及lic文件
/// 设备 精伦电子公司的iDR200 或 iDR210 型号测试通过
/// 获取的头像图片在应用程序目录下“photo.bmp”文件
/// </summary>
    public class IDCardReader
    {
#region DllImport
        [DllImport("sdtapi.dll")]
private static extern int InitComm(int iPort);//初始化

        [DllImport("sdtapi.dll")]
private static extern int CloseComm();//关闭端口

        [DllImport("sdtapi.dll")]
private static extern int Authenticate();//卡认证

        [DllImport("sdtapi.dll")]//读取数据，推荐使用
        private static extern int ReadBaseInfos(
                                    StringBuilder Name,
                                    StringBuilder Gender,
                                    StringBuilder Folk,
                                    StringBuilder BirthDay,
                                    StringBuilder Code,
                                    StringBuilder Address,
                                    StringBuilder Agency,
                                    StringBuilder ExpireStart,
                                    StringBuilder ExpireEnd);

        [DllImport("kernel32.dll")]
private static extern int Beep(int dwFreq, int dwDuration);//用来大吼一声
        #endregion

public event Action<ReadCardCompletedEventArgs> ReadCardCompleted;
public event Action<string> OnError;

/// <summary>
/// 获取身份证信息.
/// 如果成功就促发ReadCardCompleted事件，事件参数包含相关信息;
/// 否则促发OnError事件.
/// </summary>
        public void ReadCard()
        {
            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);

//打开端口
            int intOpenRet = 0;
for (int i = 1001; i < 1004; i++)
            {
                intOpenRet = InitComm(i);

if (intOpenRet == 1)
break;

            }
if (intOpenRet != 1)
            {
if (OnError != null) OnError("阅读机具未连接");
return;
            }
//卡认证
            int intReadRet = Authenticate();
if (intReadRet != 1)
            {
if (OnError != null) OnError("卡认证失败");

                CloseComm();
return;
            }

//ReadBaseInfos（推荐使用）
            int intReadBaseInfosRet = ReadBaseInfos(
                                        Name, Gender, Folk, BirthDay,
                                        Code, Address, Agency,
                                        ExpireStart, ExpireEnd);

if (intReadBaseInfosRet == 0)
            {
if (OnError != null) OnError("读卡错误");

                CloseComm();
return;
            }

            Beep(2047, 200);
            ReadCardCompletedEventArgs args = new ReadCardCompletedEventArgs();
            args.Code = Code.ToString().Trim();
            args.Name = Name.ToString().Trim();
            args.Gender = Gender.ToString().Trim();
            args.Folk = Folk.ToString().Trim();
            args.BirthDay = BirthDay.ToString().Trim();
            args.Address = Address.ToString().Trim();
            args.Agency = Agency.ToString().Trim();
            args.ExpireStart = ExpireStart.ToString().Trim();
            args.ExpireEnd = ExpireEnd.ToString().Trim();
            args.PhotoPath = Directory.GetCurrentDirectory() + "\\photo.bmp";

            CloseComm();

if (ReadCardCompleted != null)
            {
this.ReadCardCompleted(args);
            }
        }
    }

/// <summary>
/// ReadCardCompleted事件参数类
/// 包含身份证基本信息和图片
/// </summary>
    public class ReadCardCompletedEventArgs : EventArgs
    {
public String Name { get; set; }
/// <summary>
/// 性别
/// </summary>
        public String Gender { get; set; }
/// <summary>
/// 民族
/// </summary>
        public String Folk { get; set; }

public String BirthDay { get; set; }
/// <summary>
/// 身份证号
/// </summary>
        public String Code { get; set; }

public String Address { get; set; }
/// <summary>
/// 发证机关
/// </summary>
        public String Agency { get; set; }

public String ExpireStart { get; set; }

public String ExpireEnd { get; set; }

public String PhotoPath { get; set; }
    }

代码没有什么改动就换了一下名字让编程生活体验更好一点。

当时为什么这样写? 这个问题是问这么写有什么好处。现阶段我只能说习惯这样写。

对了，模模糊糊感觉为了好异步处理这个类的实例。

为什么要处理异步处理这个类的实例? 因为外部设备运行有一个响应时间，这个响应时间有长有短，不易控制，还容易界面无法响应。

这样界面就感觉卡卡的，用户体验也不好。这样的软件还容易被淘汰掉。得妥善解决这一问题！

　　异步调用是关键。

            reader.Value.ReadCardCompleted += (args) =>
            {
this.txtAddress.Text = args.Address;
this.txtAgency.Text = args.Agency;
this.txtBirthDay.Text = args.BirthDay;
this.txtCode.Text = args.Code;
this.txtExpireEnd.Text = args.ExpireEnd;
this.txtExpireStart.Text = args.ExpireStart;
this.txtFolk.Text = args.Folk;
this.txtGender.Text = args.Gender;
this.txtName.Text = args.Name;

this.picboxSignle.LoadAsync(args.PhotoPath);
            };

//reader.Value.ReadCard();
            Action delegateReader = () => reader.Value.ReadCard();
            delegateReader.BeginInvoke(null, null);

这里用到了委托的异步调用，明显改善了程序的性能和用户体验。

这里只是写了一种情况当然其他具体情况请看官们斟酌了。

namespace ReadCard
{
#region Using
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
#endregion

/// <summary>
/// 用于获取二代身份证的基本信息(包括图片)
/// 调用时确保 由厂商提供的API的动态链接库等及lic文件
/// 设备 精伦电子公司的iDR200 或 iDR210 型号测试通过
/// 获取的头像图片在应用程序目录下“photo.bmp”文件
/// </summary>
    public class IDCardReader
    {
#region DllImport
        [DllImport("sdtapi.dll")]
private static extern int InitComm(int iPort);//初始化

        [DllImport("sdtapi.dll")]
private static extern int CloseComm();//关闭端口

        [DllImport("sdtapi.dll")]
private static extern int Authenticate();//卡认证

        [DllImport("sdtapi.dll")]//读取数据，推荐使用
        private static extern int ReadBaseInfos(
                                    StringBuilder Name,
                                    StringBuilder Gender,
                                    StringBuilder Folk,
                                    StringBuilder BirthDay,
                                    StringBuilder Code,
                                    StringBuilder Address,
                                    StringBuilder Agency,
                                    StringBuilder ExpireStart,
                                    StringBuilder ExpireEnd);

        [DllImport("kernel32.dll")]
private static extern int Beep(int dwFreq, int dwDuration);//用来大吼一声
        #endregion

public event Action<ReadCardCompletedEventArgs> ReadCardCompleted;
public event Action<string> OnError;

#region 参考代码
//enum ERetReadBaseInfos
//{
//    正确 = 1,
//    读卡错误 = 0,
//    没有最新住址信息 = 2,
//    相片解码错误 = -1,
//    wlt文件后缀错误 = -2,
//    wlt文件打开错误 = -3,
//    wlt文件格式错误 = -4,
//    软件未授权 = -5,
//    无效参数 = -11,
//}
        #endregion
/// <summary>
/// 获取身份证信息.
/// 如果成功就促发ReadCardCompleted事件，事件参数包含相关信息;
/// 否则促发OnError事件.
/// </summary>
        public void ReadCard()
        {
            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);

//打开端口
            int intOpenRet = 0;
for (int i = 1001; i < 1004; i++)
            {
                intOpenRet = InitComm(i);

if (intOpenRet == 1)
break;

            }
if (intOpenRet != 1)
            {
if (OnError != null) OnError("阅读机具未连接");
return;
            }
//卡认证
            int intReadRet = Authenticate();
if (intReadRet != 1)
            {
if (OnError != null) OnError("卡认证失败");

                CloseComm();
return;
            }

//ReadBaseInfos（推荐使用）
            int intReadBaseInfosRet = ReadBaseInfos(
                                        Name, Gender, Folk, BirthDay,
                                        Code, Address, Agency,
                                        ExpireStart, ExpireEnd);

if (intReadBaseInfosRet == 0)
            {
if (OnError != null) OnError("读卡错误");

                CloseComm();
return;
            }

            Beep(2047, 200);
            ReadCardCompletedEventArgs args = new ReadCardCompletedEventArgs();
            args.Code = Code.ToString().Trim();
            args.Name = Name.ToString().Trim();
            args.Gender = Gender.ToString().Trim();
            args.Folk = Folk.ToString().Trim();
            args.BirthDay = BirthDay.ToString().Trim();
            args.Address = Address.ToString().Trim();
            args.Agency = Agency.ToString().Trim();
            args.ExpireStart = ExpireStart.ToString().Trim();
            args.ExpireEnd = ExpireEnd.ToString().Trim();
            args.PhotoPath = Directory.GetCurrentDirectory() + "\\photo.bmp";

            CloseComm();

if (ReadCardCompleted != null)
            {
this.ReadCardCompleted(args);
            }
        }
    }

/// <summary>
/// ReadCardCompleted事件参数类
/// 包含身份证基本信息和图片
/// </summary>
    public class ReadCardCompletedEventArgs : EventArgs
    {
public String Name { get; set; }
/// <summary>
/// 性别
/// </summary>
        public String Gender { get; set; }
/// <summary>
/// 民族
/// </summary>
        public String Folk { get; set; }

public String BirthDay { get; set; }
/// <summary>
/// 身份证号
/// </summary>
        public String Code { get; set; }

public String Address { get; set; }
/// <summary>
/// 发证机关
/// </summary>
        public String Agency { get; set; }

public String ExpireStart { get; set; }

public String ExpireEnd { get; set; }

public String PhotoPath { get; set; }
    }
}

二代身份证读取-微调版

热门文章

最新文章

相关电子书

相关实验场景