JAVA 根據身份證獲取年齡，性別，生日

廢話不多少，直接上代碼，喜歡點個贊！ 

 /**
     * 根據身份證獲取年齡，性別，生日
     * @param idNum
     * @return 
     * @author  
     */
    public static Map<String, String> getAgeAndSexById(String idNum) {
        String age = "";
        String sex = ""; 
        String bir = ""; 
        GregorianCalendar calendar = new GregorianCalendar(TimeZone.getDefault());//獲取系統當前時間
        int currentYear = calendar.get(Calendar.YEAR);
        if (idNum.matches("^\\d{15}$|^\\d{17}[\\dxX]$")) {
            if (idNum.length() == 18) {
                Pattern pattern = Pattern.compile("\\d{6}(\\d{4})\\d{6}(\\d{1})[\\dxX]{1}");
                Matcher matcher = pattern.matcher(idNum);
                if (matcher.matches()) {
                    
                    age = String.valueOf(currentYear - Integer.parseInt(matcher.group(1)));
                    sex = Integer.parseInt(matcher.group(2))%2==0?"2":"1";
                    bir = idNum.substring(6, 10)+"-"
                            + idNum.substring(10, 12)+"-"
                            + idNum.substring(12, 14);
                }
            } else if (idNum.length() == 15) {
                Pattern p = Pattern.compile("\\d{6}(\\d{2})\\d{5}(\\d{1})\\d{1}");
                Matcher m = p.matcher(idNum);
                if (m.matches()) {
                    int year = Integer.parseInt(m.group(1));
                    year = 2000 + year;
                    if (year > 2020) {
                        year = year - 100;
                    }
                    age = String.valueOf(currentYear - year);
                    sex = Integer.parseInt(m.group(2))%2==0?"2":"1";
                    bir = "19" + idNum.substring(6, 8)+"-" 
                    		+ idNum.substring(8, 10) +"-" 
                            + idNum.substring(10, 12);
                }
            }
        }
        
        Map<String, String> reMap = new HashMap<String, String>();
        reMap.put("age", age);
        reMap.put("sex", sex);
        reMap.put("bir", bir);
        
        return reMap;
    }