java验证身份证号码

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import java.util.Calendar;import java.util.GregorianCalendar;import java.util.HashMap;import java.util.Map;public class IDCardUtil {    final static Map<Integer, String> zoneNum = new HashMap<Integer, String>();    static {        zoneNum.put(11, "北京");        zoneNum.put(12, "天津");        zoneNum.put(13, "河北");        zoneNum.put(14, "山西");        zoneNum.put(15, "内蒙古");        zoneNum.put(21, "辽宁");        zoneNum.put(22, "吉林");        zoneNum.put(23, "黑龙江");        zoneNum.put(31, "上海");        zoneNum.put(32, "江苏");        zoneNum.put(33, "浙江");        zoneNum.put(34, "安徽");        zoneNum.put(35, "福建");        zoneNum.put(36, "江西");        zoneNum.put(37, "山东");        zoneNum.put(41, "河南");        zoneNum.put(42, "湖北");        zoneNum.put(43, "湖南");        zoneNum.put(44, "广东");        zoneNum.put(45, "广西");        zoneNum.put(46, "海南");        zoneNum.put(50, "重庆");        zoneNum.put(51, "四川");        zoneNum.put(52, "贵州");        zoneNum.put(53, "云南");        zoneNum.put(54, "西藏");        zoneNum.put(61, "陕西");        zoneNum.put(62, "甘肃");        zoneNum.put(63, "青海");        zoneNum.put(64, "新疆");        zoneNum.put(71, "台湾");        zoneNum.put(81, "香港");        zoneNum.put(82, "澳门");        zoneNum.put(91, "外国");    }         final static int[] PARITYBIT = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};    final static int[] POWER_LIST = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10,         5, 8, 4, 2};         /**     * 身份证验证     *@param s  号码内容     *@return 是否有效 null和"" 都是false      */    public static boolean isIDCard(String certNo){        if(certNo == null || (certNo.length() != 15 && certNo.length() != 18))            return false;        final char[] cs = certNo.toUpperCase().toCharArray();        //校验位数        int power = 0;        for(int i=0; i<cs.length; i++){            if(i==cs.length-1 && cs[i] == 'X')                break;//最后一位可以 是X或x            if(cs[i]<'0' || cs[i]>'9')                return false;            if(i < cs.length -1){                power += (cs[i] - '0') * POWER_LIST[i];            }        }                 //校验区位码        if(!zoneNum.containsKey(Integer.valueOf(certNo.substring(0,2)))){            return false;        }                 //校验年份        String year = certNo.length() == 15 ? getIdcardCalendar() + certNo.substring(6,8) :certNo.substring(6, 10);                 final int iyear = Integer.parseInt(year);        if(iyear < 1900 || iyear > Calendar.getInstance().get(Calendar.YEAR))            return false;//1900年的PASS，超过今年的PASS                 //校验月份        String month = certNo.length() == 15 ? certNo.substring(8, 10) : certNo.substring(10,12);        final int imonth = Integer.parseInt(month);        if(imonth <1 || imonth >12){            return false;        }                 //校验天数              String day = certNo.length() ==15 ? certNo.substring(10, 12) : certNo.substring(12, 14);        final int iday = Integer.parseInt(day);        if(iday < 1 || iday > 31)            return false;                        //校验"校验码"        if(certNo.length() == 15)            return true;        return cs[cs.length -1 ] == PARITYBIT[power % 11];    }         private static int getIdcardCalendar() {                 GregorianCalendar curDay = new GregorianCalendar();         int curYear = curDay.get(Calendar.YEAR);         int year2bit = Integer.parseInt(String.valueOf(curYear).substring(2));                   return  year2bit;    }                        public static void main(String[] args) {             boolean mark = isIDCard("450981198802261753");             System.out.println(mark);    } }
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