java

关注公众号 jb51net

关闭
首页 > 软件编程 > java > java身份证号验证

java实现身份证号码验证的示例代码

作者:派大星`

这篇文章主要为大家详细介绍了如何利用java语言实现身份证号码验证的功能,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下

需要编号文件

编号文件部分内容如下

11:北京市
1101:市辖区
110101:东城区
110102:西城区
110105:朝阳区
110106:丰台区
110107:石景山区
110108:海淀区
......

java代码如下 

import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.function.Consumer;
import java.util.regex.Pattern;
public class IdCardCheckUtils {
    public static final Integer[] idCardWeight = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};//身份证前17位数字依次乘以对应的权重因子
    public static final String[] CONSTELLATION_ARR = {"水瓶座", "双鱼座", "白羊座", "金牛座", "双子座", "巨蟹座", "狮子座", "处女座", "天秤座", "天蝎座", "射手座", "魔羯座"};//星座数组
    public static final int[] CONSTELLATION_EDGE_DAY = {20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22};//星座对应的边缘日期
    public static final String[] ZODIAC_ARR = {"猴", "鸡", "狗", "猪", "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊"};//生肖
    public static Map<Integer, String> idCardMap = new HashMap<>();//组装根据余数,对应一个指定的校验码
    private static Map<Integer, String> nativePlaceCode = new HashMap<>(4096, 1);//内存籍贯编号,记录身份证编号对应的地址
    public static void main(String[] args) throws Exception {
        String path = "C:\\Users\\Administrator\\Desktop\\code.txt";//编号文件
        init(path);//初始化身份证校验参数
        String idCard = "512926164805034455";//测试的身份证号码
        checkIdCard(idCard);//校验身份证是否输入正常
        //基本信息
        System.out.println("出生日期:" + idCard.substring(6, 10) + "." + idCard.substring(10, 12) + "." + idCard.substring(12, 14));
        System.out.println("性别:" +getSex(idCard));
        System.out.println("年龄:" + getAge(idCard));
        System.out.println("您的星座:" + getConstellation(idCard));
        System.out.println("您的生肖:" + getAnimalSign(idCard));
        //籍贯信息
        int nativePlaceCode = Integer.parseInt(idCard.substring(0, 6));//籍贯组合编码
        int provinceCode = nativePlaceCode / 10000;//省编码
        int cityCode = nativePlaceCode / 100;//市编码
        int countyCode = nativePlaceCode;//县编码
        System.out.println(IdCardCheckUtils.nativePlaceCode.get(provinceCode));
        System.out.println(IdCardCheckUtils.nativePlaceCode.get(cityCode));
        System.out.println(IdCardCheckUtils.nativePlaceCode.get(countyCode));
    }
    /**
     * 初始化地区编码文件与校验码
     *
     * @param path
     * @throws IOException
     */
    private static void init(String path) throws IOException {
        synchronized (String.class) {
            if (!idCardMap.isEmpty()) return;
            Consumer<String> function = line -> {
                String[] split = line.split(":");
                nativePlaceCode.put(Integer.valueOf(split[0]), split[1]);
            };
            read(path, function);//将文件内容加载到map内存中
            final String[] idCardCheck = {"1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};//身份证最后一位对应的校验码
            for (int i = 0; i < 10; i++) {
                idCardMap.put(i, idCardCheck[i]);//校验码记录
            }
        }
    }
    /**
     * 验证身份证号码是否正常
     *
     * @param idCardNo
     * @return
     */
    public static void checkIdCard(String idCardNo) throws Exception {
        String idCard = idCardNo.toUpperCase();//将其转成大写有的身份证最后一位是字母
        if (idCardNo.length() == 15) {//15位身份证转成18位
            if (!(idCardNo.matches("[0-9]{17}[0-9|x]|[0-9]{15}"))) throw new Exception("身份证号码输入错误,请输入正确格式的15位身份证号码");
            String s2 = idCardNo.substring(0, 6);//15位转换为18位
            String s3 = idCardNo.substring(6, 15);
            String changed = s2.concat("19").concat(s3);
            idCard = changed.toUpperCase();
        }
        if (!Pattern.matches("^\\d{17}", idCard.substring(0, 17))) throw new Exception("身份证号码输入错误,前17位必须是数字");//验证身份证前17位是否为数字
        char[] idCardCharNumber = idCard.toCharArray();
        Integer resultSum = 0;
        for (int i = 0; i < idCardCharNumber.length - 1; i++) resultSum += Character.getNumericValue(idCardCharNumber[i]) * idCardWeight[i];
        Integer lastResult = resultSum % 11;//将相加的前17位数字依次乘以对应的权重因子相加,相加的结果除以11,得到余数
        //根据余数,对应一个指定的校验码。最终得到的校验码就是身份证号码的最后一位数字。通过这个校验码,可以验证前面17位数字是否正确,从而提高身份证号码的准确性
        if (!(idCardMap.containsKey(lastResult)) || !(idCardMap.get(lastResult).equals(idCard.substring(idCard.length() - 1)))) throw new Exception("身份证号码校验异常,输入错误");
    }
    /**
     * 根据日期获取当前年龄
     *
     * @return
     */
    public static int getAge(String idCard) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
        String dateString = dateFormat.format(new Date());
        int currentDate = Integer.parseInt(dateString);
        int idCardDate = Integer.parseInt(idCard.substring(6, 10) + idCard.substring(10, 12) + idCard.substring(12, 14));
        int age = (currentDate - idCardDate) / 10000;
        return age;
    }
    /**
     * 根据身份证id获取当前年龄
     *
     * @return
     */
    public static String getSex(String idCard) {
        String sex = Integer.parseInt(idCard.substring(16, 17)) % 2 == 0 ? "女" : "男";
        return sex;
    }
    /**
     * 根据身份证号判断用户星座
     *
     * @param cardNo
     * @return
     */
    public static String getConstellation(String cardNo) {
        String birthday = cardNo.substring(6, 14);// 获取出生日期
        Date birthdate = null;
        try {
            birthdate = new SimpleDateFormat("yyyyMMdd").parse(birthday);
            if (birthdate == null) return "";
            Calendar cal = Calendar.getInstance();
            cal.setTime(birthdate);
            int month = cal.get(Calendar.MONTH);
            int day = cal.get(Calendar.DAY_OF_MONTH);
            if (day < CONSTELLATION_EDGE_DAY[month]) month = month - 1;
            if (month >= 0) return CONSTELLATION_ARR[month];
            return CONSTELLATION_ARR[11];// default to return 魔羯
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return null;
    }
    /**
     * 根据身份证号判断用户生肖
     *
     * @param cardNo
     * @return
     */
    public static String getAnimalSign(String cardNo) {
        String birthday = cardNo.substring(6, 14);// 获取出生日期
        Date birthdate;
        try {
            birthdate = new SimpleDateFormat("yyyyMMdd").parse(birthday);
            Calendar cal = Calendar.getInstance();
            cal.setTime(birthdate);
            return ZODIAC_ARR[cal.get(Calendar.YEAR) % 12];
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return null;
    }
    public static void read(String path, Consumer<String> func) throws IOException {
        File file = new File(path);
        FileInputStream fileInputStream = null;
        InputStreamReader read = null;//考虑到编码格式
        BufferedReader bufferedReader = null;
        try {
            fileInputStream = new FileInputStream(file);
            read = new InputStreamReader(fileInputStream, "UTF-8");
            bufferedReader = new BufferedReader(read);
            String lineTxt;
            while ((lineTxt = bufferedReader.readLine()) != null) func.accept(lineTxt);//读取一行
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            bufferedReader.close();
            read.close();
            fileInputStream.close();
        }
    }
}

运行结果 ,身份证是随意编写的,可以用自己的身份证进行测试

到此这篇关于java实现身份证号码验证的示例代码的文章就介绍到这了,更多相关java身份证号验证内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!

您可能感兴趣的文章:
阅读全文