身份证验证器

先看下效果：

 

 

以下是窗体代码：

public partial class Form1 : Form{public Form1(){InitializeComponent();}string strg;//数据库路径OleDbConnection conn;//数据连接对象OleDbCommand cmd;//OleDbCommand对象OleDbDataReader sdr;//OleDbDataReader对象private bool CheckCard(string cardId)//创建一个CheckCard方法用于检查身份证号码是否合法{if (cardId.Length == 18) //如果身份证号为18位{return CheckCard18(cardId);//调用CheckCard18方法验证}else if (cardId.Length == 15) //如果身份证号为15位{return CheckCard15(cardId);//调用CheckCard15方法验证}else{return false;}}private bool CheckCard18(string CardId)//CheckCard18方法用于检查18位身份证号码的合法性{long n = 0;bool flag = false;if (long.TryParse(CardId.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(CardId.Replace('x', '0').Replace('X', '0'), out n) == false)return false;//数字验证string[] Myaddress =new string[]{ "11","22","35","44","53","12","23","36","45","54","13","31","37","46","61","14","32","41","50","62","15","33","42","51","63","21","34","43","52","64","65","71","81","82","91"};for (int kk = 0; kk < Myaddress.Length;kk++ ){if (Myaddress[kk].ToString() == CardId.Remove(2)){flag = true;}}if (flag){return flag;}string Mybirth = CardId.Substring(6, 8).Insert(6, "-").Insert(4, "-");DateTime Mytime = new DateTime();if (DateTime.TryParse(Mybirth, out Mytime) == false)return false;//生日验证string[] MyVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');string[] wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');char[] ai = CardId.Remove(17).ToCharArray();int sum = 0;for (int i = 0; i < 17; i++)sum += int.Parse(wi[i]) * int.Parse(ai[i].ToString());int y = -1;Math.DivRem(sum, 11, out y);if (MyVarifyCode[y] != CardId.Substring(17, 1).ToLower()){return false;//校验码验证}return true;//符合GB11643-1999标准}private bool CheckCard15(string CardId){long n = 0;bool flag = false;if (long.TryParse(CardId, out n) == false || n < Math.Pow(10, 14))return false;//数字验证string[] Myaddress = new string[]{ "11","22","35","44","53","12","23","36","45","54","13","31","37","46","61","14","32","41","50","62","15","33","42","51","63","21","34","43","52","64","65","71","81","82","91"};for (int kk = 0; kk < Myaddress.Length; kk++){if (Myaddress[kk].ToString() == CardId.Remove(2)){flag = true;}}if (flag){return flag;}string Mybirth = CardId.Substring(6, 6).Insert(4, "-").Insert(2, "-");DateTime Mytime = new DateTime();if (DateTime.TryParse(Mybirth, out Mytime) == false){return false;//生日验证}return true;//符合15位身份证标准}private void button1_Click(object sender, EventArgs e){if (txtCardID.Text == "")//如果没有输入身份证号码{return; //不执行操作}else{if (CheckCard(txtCardID.Text.Trim()))//如果通过CheckCard方法验证成功{this.Height = 237; //设置窗体高度string card=txtCardID.Text.Trim();//获取输入的身份证号码if (card.Length == 15) //如果输入的是15位的身份证号码，需要将其转换成18位{int[] w = new int[] { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 };char[] a = new char[] { '1', '0', 'x', '9', '8', '7', '6', '5', '4', '3', '2' };string newID = "";int s = 0;newID =this.txtCardID.Text.Trim().Insert(6, "19");for (int i = 0; i < 17; i++){int k = Convert.ToInt32(newID[i]) * w[i];s = s + k;}int h = 0;Math.DivRem(s, 11, out h);newID = newID + a[h];card = newID; //最后将转换成18位的身份证号码赋值给card}int addnum =Convert.ToInt32(card.Remove(6));//获取身份证号码中的地址码//连接数据库conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data source=" + strg);conn.Open();//打开数据库//查找数据库中是否存在输入的身份证号码中的地址码cmd = new OleDbCommand("select count(*) from address where AddNum="+addnum, conn);int KK = Convert.ToInt32(cmd.ExecuteScalar());if (KK > 0)//如果存在{//检索数据库cmd = new OleDbCommand("select * from address where AddNum=" + addnum, conn);//实例化OleDbDataReader对象sdr = cmd.ExecuteReader();sdr.Read();//读取该对象string address = sdr["AddName"].ToString();//获取地址码对应的归属地string birthday = card.Substring(6, 8);//从身份证号码中截取出公民的生日string byear = birthday.Substring(0,4);//获取出生年份string bmonth = birthday.Substring(4,2);//获取出生月份if (bmonth.Substring(0, 1) == "0")//如果月份是以0开头{bmonth = bmonth.Substring(1,1);//去掉0}string bday = birthday.Substring(6,2);//获取出生“日”if (bday.Substring(0, 1) == "0")//如果“日”以0开头{bday = bday.Substring(1, 1);//去掉0}string sex = "";//性别if (txtCardID.Text.Trim().Length == 15)//如果输入的身份证号码是15位{int PP=Convert.ToInt32(txtCardID.Text.Trim().Substring(14,1))%2;//判断最后一位是奇数还是偶数if (PP == 0)//如果是偶数{sex = "女";//说明身份证号码的持有者是女性}else{sex = "男";//如果是奇数则身份证号码的持有者是男性}}if (txtCardID.Text.Trim().Length == 18)//如果输入的身份证号码是18位{int PP = Convert.ToInt32(txtCardID.Text.Trim().Substring(16, 1)) % 2;//判断倒数第二位是奇数还是偶数if (PP == 0)//如果是偶数{sex = "女";//说明身份证号码的持有者是女性}else{sex = "男";//如果是奇数则身份证号码的持有者是男性}}sdr.Close();//关闭OleDbDataReader连接conn.Close();//关闭数据库连接lblAddress.Text = address;//显示身份证持有者的归属地lblbirthday.Text = byear + "年" + bmonth + "月" + bday + "日";//显示身份证持有者的生日lblsex.Text = sex;//显示身份证持有者的性别lblresult.Text = "合法的公民身份证号！";//显示验证结果}else{MessageBox.Show("公民身份证号输入有误！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);}}else{MessageBox.Show("非法公民身份证号！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);}}}private void button2_Click(object sender, EventArgs e){txtCardID.Text = "";//清空输入框this.Height = 78; //设置窗体高度位78}private void Form1_Load(object sender, EventArgs e){this.Height = 78;//设置窗体高度//获取数据库路径strg = Application.StartupPath.ToString();strg = strg.Substring(0, strg.LastIndexOf("\\"));strg = strg.Substring(0, strg.LastIndexOf("\\"));strg += @"\db.mdb";}}

 数据库:db.mdb

转载于:https://www.cnblogs.com/ziranquliu/archive/2013/06/06/4722625.html

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