Android 身份证号有效性校验工具类

来源：互联网发布：java 图片文字合成编辑：程序博客网时间：2024/05/18 03:54
不记得从哪找的了，修改了部分代码，修复在Android平台下使用时，时区时间格式异常的问题。
package cn.aikongmeng.demo.utils;import java.text.NumberFormat;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Random;/** * Created by Arjun on 2017/4/25. * 身份证有效性校验 */public class IdentityUtils {    //    位权值数组    private static byte[] Wi = new byte[17];    //    身份证前部分字符数    private static final byte fPart = 6;    //    身份证算法求模关键值    private static final byte fMod = 11;    //    旧身份证长度    private static final byte oldIDLen = 15;    //    新身份证长度    private static final byte newIDLen = 18;    //    新身份证年份标志    private static final String yearFlag = "19";    //    校验码串    private static final String CheckCode = "10X98765432";    //    最小的行政区划码    private static final int minCode = 150000;    //    最大的行政区划码    private static final int maxCode = 700000;//    旧身份证号码//    private String oldIDCard="";//    新身份证号码//    private String newIDCard="";//    地区及编码    //private String Area[][2] =    private static void setWiBuffer() {        for (int i = 0; i < Wi.length; i++) {            int k = (int) Math.pow(2, (Wi.length - i));            Wi[i] = (byte) (k % fMod);        }    }    //获取新身份证的最后一位:检验位    private static String getCheckFlag(String idCard) {        int sum = 0;        //进行加权求和        for (int i = 0; i < 17; i++) {            sum += Integer.parseInt(idCard.substring(i, i + 1)) * Wi[i];        }        //取模运算，得到模值        byte iCode = (byte) (sum % fMod);        return CheckCode.substring(iCode, iCode + 1);    }    //判断串长度的合法性    private static boolean checkLength(final String idCard, boolean newIDFlag) {        boolean right = (idCard.length() == oldIDLen) || (idCard.length() == newIDLen);        newIDFlag = false;        if (right) {            newIDFlag = (idCard.length() == newIDLen);        }        return right;    }    //获取时间串    private static String getIDDate(final String idCard, boolean newIDFlag) {        String dateStr = "";        if (newIDFlag)            dateStr = idCard.substring(fPart, fPart + 8);        else            dateStr = yearFlag + idCard.substring(fPart, fPart + 6);        return dateStr;    }    //判断时间合法性    private static boolean checkDate(final String dateSource) {        String dateStr = dateSource.substring(0, 4) + "-" + dateSource.substring(4, 6) + "-" + dateSource.substring(6, 8);        System.out.println(dateStr);        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");        try {            Date date = df.parse(dateStr);            return (date != null);        } catch (java.text.ParseException e) {            e.printStackTrace();            return false;        }    }    //旧身份证转换成新身份证号码    public static String getNewIDCard(final String oldIDCard) {        //初始化方法        IdentityUtils.setWiBuffer();        if (!checkIDCard(oldIDCard)) {            return oldIDCard;        }        String newIDCard = oldIDCard.substring(0, fPart);        newIDCard += yearFlag;        newIDCard += oldIDCard.substring(fPart, oldIDCard.length());        String ch = getCheckFlag(newIDCard);        newIDCard += ch;        return newIDCard;    }    //新身份证转换成旧身份证号码    public static String getOldIDCard(final String newIDCard) {        //初始化方法        IdentityUtils.setWiBuffer();        if (!checkIDCard(newIDCard)) {            return newIDCard;        }        String oldIDCard = newIDCard.substring(0, fPart) +                newIDCard.substring(fPart + yearFlag.length(), newIDCard.length() - 1);        return oldIDCard;    }    //判断身份证号码的合法性    public static boolean checkIDCard(final String idCard) {        //初始化方法        IdentityUtils.setWiBuffer();        int length = idCard.length();        boolean isNew;        if (length == oldIDLen) isNew = false;        else if (length == newIDLen) isNew = true;        else return false;        //String message = "";        if (!checkLength(idCard, isNew)) {            //message = "ID长度异常";            return false;        }        String idDate = getIDDate(idCard, isNew);        if (!checkDate(idDate)) {            //message = "ID时间异常";            return false;        }        if (isNew) {            String checkFlag = getCheckFlag(idCard);            String theFlag = idCard.substring(idCard.length() - 1, idCard.length());            if (!checkFlag.equals(theFlag)) {                //message = "新身份证校验位异常";                return false;            }        }        return true;    }    //获取一个随机的"伪"身份证号码    public static String getRandomIDCard(final boolean idNewID) {        //初始化方法        IdentityUtils.setWiBuffer();        Random ran = new Random();        String idCard = getAddressCode(ran) + getRandomDate(ran, idNewID) + getIDOrder(ran);        if (idNewID) {            String ch = getCheckFlag(idCard);            idCard += ch;        }        return idCard;    }    //产生随机的地区编码    private static String getAddressCode(Random ran) {        if (ran == null) {            return "";        } else {            int addrCode = minCode + ran.nextInt(maxCode - minCode);            return Integer.toString(addrCode);        }    }    //产生随机的出生日期    private static String getRandomDate(Random ran, boolean idNewID) {        // TODO Auto-generated method stub        if (ran == null) {            return "";        }        int year = 0;        if (idNewID) {            year = 1900 + ran.nextInt(2017 - 1900);        } else {            year = 1 + ran.nextInt(99);        }        int month = 1 + ran.nextInt(12);        int day = 0;        if (month == 2) {            day = 1 + ran.nextInt(28);        } else if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {            day = 1 + ran.nextInt(31);        } else {            day = 1 + ran.nextInt(30);        }        NumberFormat nf = NumberFormat.getIntegerInstance();        nf.setMaximumIntegerDigits(2);        nf.setMinimumIntegerDigits(2);        String dateStr = Integer.toString(year) + nf.format(month) + nf.format(day);        return dateStr;    }    //产生随机的序列号    private static String getIDOrder(Random ran) {        // TODO Auto-generated method stub        NumberFormat nf = NumberFormat.getIntegerInstance();        nf.setMaximumIntegerDigits(3);        nf.setMinimumIntegerDigits(3);        if (ran == null) {            return "";        } else {            int order = 1 + ran.nextInt(999);            return nf.format(order);        }    }    public IdentityUtils() {        setWiBuffer();    }    /**     * @param args     */    public static void main(String[] args) {        boolean checkFlag = IdentityUtils.checkIDCard("512501197203035172");        System.out.println(checkFlag);    }}
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