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package io.afu.utils.string;


import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 中国身份证号码助手
 */
public class IdcardUtils {

    /**
     * 18位身份证号识别助手，通过正则来的，该方法适用于中华人民共和95年起的方法，如果有所改变，需要自行修改。
     * @param idcard
     * @return
     */
    public static Boolean checkIfIsChineseIdcard(String idcard){
        int length = idcard.length();
        if (length == 15){

        }
        if (length ==18){
            String patten = "^(11|12|13|14|15|21|22|23|31|32|33|34|35|36|37|41|42|43|44|45|46|51|52|52|54|50|61|62|63|64|65|71|81|82)\\d{4}([1-3][0-9])\\d{9}[\\d|X|x]$";
            Pattern p = Pattern.compile(patten);
            Matcher m = p.matcher(idcard);
            if (m.find()){
                System.out.println("idcard = [" + m.group() + "]");
                return true;
            }
        }
        return false;
    }

    public static String getBirthFromIdcard(String idcard){
        if (checkIfIsChineseIdcard(idcard)){
            return idcard.substring(6,14);
        }
        return null;
    }


    public static void main(String[] args){
        Boolean stat = checkIfIsChineseIdcard("");
        System.out.println("args = [" + stat + "]");
        System.out.println("args = [" + getBirthFromIdcard("") + "]");
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
        try {
            Date newDate = simpleDateFormat.parse("");
            System.out.println(simpleDateFormat.format(newDate));
        }catch (Exception e){
            e.printStackTrace();
        }

    }







}