java身份证校验工具
package quanmin.personhealth.Util; 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<>(); 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 certNo 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" return certNo.length() == 15 || cs[cs.length - 1] == PARITYBIT[power % 11]; } private static int getIdcardCalendar() { GregorianCalendar curDay = new GregorianCalendar(); int curYear = curDay.get(Calendar.YEAR); return Integer.parseInt(String.valueOf(curYear).substring(2)); } }