Java 身份證驗證 判斷性別 生日工具類
阿新 • • 發佈：2019-01-09
package com.wolaidai.yhd.utils; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.regex.Pattern; import org.apache.commons.lang3.StringUtils; public abstract class IDCardUtils { // private final static Logger LOGGER = LoggerFactory.getLogger(IDCardUtils.class); private static final String REGPEX_18_BIT = "\\d{17}([0-9]|X)"; private static final String REGPEX_15_BIT = "\\d{15}"; private static final String BIRTHDAY_18_BIT = "^((19|20)\\d{2})(0[1-9]|1[0-2])(0[1-9]|[12][0-9]|3[01])$"; private static final String BIRTHDAY_15_BIT = "^(\\d{2})(0[1-9]|1[0-2])(0[1-9]|[12][0-9]|3[01])$"; private static final char[] CHINA_ID_CARD_VALIDATE_BIT = new char[]{'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'}; public static boolean validateIdCard(String idCard) { int idLen = idCard.length(); boolean result = false; if (idLen == 15) { result = validateFormate(idCard) && validateBirthday(idCard); } if (idLen == 18) { result = validateFormate(idCard) && validateBirthday(idCard) && validateLastBit(idCard); } return result; } public static boolean validateIdCardOf18(String idCard) { int idLen = idCard.length(); boolean result = false; if (idLen == 18) { result = validateFormate(idCard) && validateBirthday(idCard) && validateLastBit(idCard); } return result; } // check the date if it is valid private static boolean checkDate(String birthday) { String syear = "1900"; String smonth = "01"; String sday = "01"; if (birthday.length() == 6) { syear = "19" + birthday.substring(0, 2); smonth = birthday.substring(2, 4); sday = birthday.substring(4, 6); } if (birthday.length() == 8) { syear = birthday.substring(0, 4); smonth = birthday.substring(4, 6); sday = birthday.substring(6, 8); } int year = Integer.parseInt(syear); int month = Integer.parseInt(smonth.substring(0, 1).equals("0") ? smonth.substring(1, 2) : smonth); int day = Integer.parseInt(sday.substring(0, 1).equals("0") ? sday.substring(1, 2) : sday); boolean result = false; if (year >= 1900 && year < Calendar.getInstance().get(Calendar.YEAR)) { if (month >= 1 && month <= 12) { if (day >= 1 && day <= getDaysOfMonth(year, month)) { result = true; } } } return result; } private static boolean validateFormate(String idCard) { return Pattern.matches(REGPEX_18_BIT, idCard) || Pattern.matches(REGPEX_15_BIT, idCard); } private static boolean validateLastBit(String idCard) { char validateBit = idCard.charAt(idCard.length() - 1); int validateVale = getValidateValue(idCard); return CHINA_ID_CARD_VALIDATE_BIT[validateVale] == validateBit; } private static int[] getEveryBitWeightValue() { int[] weightValueArray = new int[18]; for (int i = 18, j = 0; i >= 1; i--, j++) { weightValueArray[j] = (int) (Math.pow(2, i - 1) % 11); } return weightValueArray; } private static int getValidateValue(String idcard) { char[] bits = idcard.toCharArray(); int result = 0; int[] weigthValueArray = getEveryBitWeightValue(); for (int i = 0, j = idcard.length() - 1; i < j; i++) { result += Integer.parseInt(bits[i] + "") * weigthValueArray[i]; } return result % 11; } // validate birthday private static boolean validateBirthday(String idcard) { int bitSize = idcard.length(); boolean result = false; if (bitSize == 15) { String birthday = idcard.substring(6, 12); if (Pattern.matches(BIRTHDAY_15_BIT, birthday)) { result = checkDate(birthday); } } if (bitSize == 18) { String birthday = idcard.substring(6, 14); if (Pattern.matches(BIRTHDAY_18_BIT, birthday)) { result = checkDate(birthday); } } return result; } private static int getDaysOfMonth(int iYear, int iMnonth) { Calendar cal = new GregorianCalendar(iYear, iMnonth - 1, 1); // Get the number of days in that month return cal.getActualMaximum(Calendar.DAY_OF_MONTH); } /** * Check the age whether lower than specify age. The precondition is that the cnid is valid. * * @return */ public static boolean isLeAgeByCnid(String cnid, int age) { String birthDayStr = null; if (cnid.length() == 15) { birthDayStr = "19" + cnid.substring(6, 12); } else { birthDayStr = cnid.substring(6, 14); } Calendar c = Calendar.getInstance(); c.add(Calendar.YEAR, -age); Date birthDay = null; birthDay = DateUtils.parseDate(birthDayStr, "yyyyMMdd"); return DateUtils.isAfter(birthDay, c.getTime()); } /** * 根據身份證號驗證年齡是否在minAge與maxAge之間 * * @param cnid * @param minAge * @param maxAge * @return */ public static boolean isAgeRangeByCnid(String cnid, int minAge, int maxAge) { String birthDayStr = null; if (cnid.length() == 15) { birthDayStr = "19" + cnid.substring(6, 12); } else { birthDayStr = cnid.substring(6, 14); } Calendar endCal = Calendar.getInstance(); endCal.add(Calendar.YEAR, -minAge); Calendar startCal = Calendar.getInstance(); startCal.add(Calendar.YEAR, -maxAge); Date birthDay = null; birthDay = DateUtils.parseDate(birthDayStr, "yyyyMMdd"); return DateUtils.isAfter(birthDay, startCal.getTime()) && DateUtils.isBefore(birthDay, endCal.getTime()); } /** * 檢查身份證的長度是否合法 * * @param cnid * @return */ public static boolean isLengthValid(String cnid) { int len = cnid.length(); if (len == 15 || len == 18) { return true; } return false; } public static String getGenderWithCnid(String cnid, String male, String female) { if (StringUtils.isNotBlank(cnid)) { int len = cnid.length(); switch (len) { case 18: return isNumEven(cnid.charAt(len - 2)) ? female : male; case 15: return isNumEven(cnid.charAt(len - 1)) ? female : male; default: break; } } return null; } private static boolean isNumEven(int num) { return (num & 1) == 0; } public static Integer getAgeWithCnid(String cnid) { Date birthday = getBirthdayWithCnid(cnid, DateUtils.YYYYMMDD); if (birthday != null) { Calendar cal = Calendar.getInstance(); cal.setTime(DateUtils.getCurrentDate()); int yearCur = cal.get(Calendar.YEAR); int monthCur = cal.get(Calendar.MONTH); int dayCur = cal.get(Calendar.DAY_OF_MONTH); cal.setTime(birthday); int yearBir = cal.get(Calendar.YEAR); int monthBir = cal.get(Calendar.MONTH); int dayBir = cal.get(Calendar.DAY_OF_MONTH); return (yearCur - yearBir - ((monthCur > monthBir) || (monthCur == monthBir && dayCur >= dayBir) ? 0 : 1)); } return null; } public static Date getBirthdayWithCnid(String cnid, String format) { String birthdayStr = parseBirthday(cnid); if (StringUtils.isNotBlank(birthdayStr)) { return DateUtils.parseDate(birthdayStr, format); } return null; } public static String parseBirthday(String cnid) { cnid = cnid.trim(); String birthdayStr = null; switch (cnid.length()) { case 18: birthdayStr = cnid.substring(6, 14); break; case 15: birthdayStr = "19" + cnid.substring(6, 12); break; } return birthdayStr; } }