Android 身份证号有效性校验工具类

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);elsedateStr = 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 stubif (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 stubNumberFormat 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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