验证身份证号码是否合法

来源：互联网发布：知廉耻懂敬畏编辑：程序博客网时间：2024/05/22 16:05

package Rong;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Hashtable;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class IdcardUtil {


    publicstatic void main(String[] args) throws ParseException {
       String IDCardNum = "";
       System.out.println("请输入15位或者18位身份证号码:");
       Scanner s=new Scanner(System.in);
       IDCardNum=s.next();
       System.out.println(IdcardCheck(IDCardNum));
    }


    publicstatic String IdcardCheck(String IDStr)
           throws NumberFormatException, ParseException {
       String errorInfo = "";// 记录错误信息
       String[] ValCodeArr = { "1", "0", "x", "9", "8", "7", "6", "5","4",
               "3", "2" };//最后一位身份证号码
       String[] Wi = { "7", "9", "10", "5", "8", "4", "2", "1", "6", "3","7",
               "9", "10", "5", "8", "4", "2" };//从第一位到第十七位的系数
       String Ai = "";
       // ================ 号码的长度 15位或18位 ================
       if (IDStr.length() != 15 &&IDStr.length() != 18) {
           errorInfo = "身份证号码长度应该为15位或18位.";
           return errorInfo;
       }
       // =======================(end)========================

       // ================ 数字除最后一位都为数字 ================
       if (IDStr.length() == 18) {
           Ai = IDStr.substring(0, 17);
       }
       else if (IDStr.length() == 15) {
           Ai = IDStr.substring(0, 6) + "19" + IDStr.substring(6, 15);
       }
       if (isNumeric(Ai) == false) {
           errorInfo = "身份证15位号码都应为数字; 18位号码除最后一位外，都应为数字。";
           return errorInfo;
       }
       // =======================(end)========================

       // ================ 出生年月是否有效 ================
       String strYear = Ai.substring(6, 10);// 年份
       String strMonth = Ai.substring(10, 12);// 月份
       String strDay = Ai.substring(12, 14);// 月份
       if (isDate(strYear + "-" + strMonth + "-" + strDay) == false){
           errorInfo = "身份证生日无效。";
           return errorInfo;
       }
       GregorianCalendar gc = new GregorianCalendar();
       SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
       if ((gc.get(Calendar.YEAR) - Integer.parseInt(strYear))> 150
               || (gc.getTime().getTime() - s.parse(
                       strYear + "-" + strMonth + "-" + strDay).getTime())< 0) {
           errorInfo = "身份证生日不在有效范围。";
           return errorInfo;
       }
       if (Integer.parseInt(strMonth) > 12 ||Integer.parseInt(strMonth) == 0) {
           errorInfo = "身份证月份无效";
           return errorInfo;
       }
       if (Integer.parseInt(strDay) > 31 ||Integer.parseInt(strDay) == 0) {
           errorInfo = "身份证日期无效";
           return errorInfo;
       }
       // =====================(end)=====================

       // ================ 地区码是否有效 ================
       Hashtable h = GetAreaCode();
       if (h.get(Ai.substring(0, 2)) == null) {
           errorInfo = "身份证地区编码错误。";
           return errorInfo;
       }
       // ==============================================

       // ================ 判断最后一位的值 ================
       int TotalmulAiWi = 0;
       for (int i = 0; i < 17; i++) {
           TotalmulAiWi = TotalmulAiWi
                   + Integer.parseInt(String.valueOf(Ai.charAt(i)))
                   * Integer.parseInt(Wi[i]);
       }
       int modValue = TotalmulAiWi % 11;
       String strVerifyCode = ValCodeArr[modValue];
       Ai = Ai + strVerifyCode;

       if (IDStr.length() == 18) {
           if (Ai.equals(IDStr) == false) {
               errorInfo = IDStr+"不是合法的身份证号码";
               return errorInfo;
           }
       }
       // =====================(end)=====================
       return IDStr+"是合法的身份证号码";
    }


    privatestatic Hashtable GetAreaCode() {
       Hashtable hashtable = new Hashtable();
       hashtable.put("11", "北京");
       hashtable.put("12", "天津");
       hashtable.put("13", "河北");
       hashtable.put("14", "山西");
       hashtable.put("15", "内蒙古");
       hashtable.put("21", "辽宁");
       hashtable.put("22", "吉林");
       hashtable.put("23", "黑龙江");
       hashtable.put("31", "上海");
       hashtable.put("32", "江苏");
       hashtable.put("33", "浙江");
       hashtable.put("34", "安徽");
       hashtable.put("35", "福建");
       hashtable.put("36", "江西");
       hashtable.put("37", "山东");
       hashtable.put("41", "河南");
       hashtable.put("42", "湖北");
       hashtable.put("43", "湖南");
       hashtable.put("44", "广东");
       hashtable.put("45", "广西");
       hashtable.put("46", "海南");
       hashtable.put("50", "重庆");
       hashtable.put("51", "四川");
       hashtable.put("52", "贵州");
       hashtable.put("53", "云南");
       hashtable.put("54", "西藏");
       hashtable.put("61", "陕西");
       hashtable.put("62", "甘肃");
       hashtable.put("63", "青海");
       hashtable.put("64", "宁夏");
       hashtable.put("65", "新疆");
       hashtable.put("71", "台湾");
       hashtable.put("81", "香港");
       hashtable.put("82", "澳门");
       hashtable.put("91", "国外");
       return hashtable;
    }


    privatestatic boolean isNumeric(String str) {
       Pattern pattern = Pattern.compile("[0-9]*");
       Matcher isNum = pattern.matcher(str);
       if (isNum.matches()) {
           return true;
       } else {
           return false;
       }
    }


    publicstatic boolean isDate(String strDate) {
       Pattern pattern = Pattern
               .compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
       Matcher m = pattern.matcher(strDate);
       if (m.matches()) {
           return true;
       } else {
           return false;
       }
    }
}