Java验证身份证号码有效性的完整实现与实时校验

package cn.wje.internationa;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;

public class IdCardUtil {
    // ... (省略包名导入，保持精简) ...

    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, "宁夏");
        zoneNum.put(65, "新疆"); zoneNum.put(71, "台湾");
        zoneNum.put(81, "香港"); zoneNum.put(82, "澳门");
        zoneNum.put(91, "国外");
    }

    /**
     * 校验码常量映射
     */
    final static int[] PARITYBIT = { '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' };
    /**
     * 加权因子wi
     */
    final static int[] POWER_LIST = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };
}...

...
    public static boolean isIdcard(String idCard) {
        // 1. 基础长度检查
        if (idCard == null || (idCard.length() != 15 && idCard.length() != 18)) {
            return false;
        }
        // 2. 校验区位码
        if (!zoneNum.containsKey(Integer.valueOf(idCard.substring(0, 2)))) {
            return false;
        }
        // 3. 提取并校验年月日
        String year = idCard.length() == 15 ? "19" + idCard.substring(6, 8) : idCard.substring(6, 10);
        String month = idCard.length() == 15 ? idCard.substring(8, 10) : idCard.substring(10, 12);
        String day = idCard.length() == 15 ? idCard.substring(10, 12) : idCard.substring(12, 14);
        
        // 简单范围检查
        int iyear = Integer.parseInt(year);
        if (iyear < 1900 || iyear > Calendar.getInstance().get(Calendar.YEAR)) return false;
        int imonth = Integer.parseInt(month);
        if (imonth < 1 || imonth > 12) return false;
        int iday = Integer.parseInt(day);
        if (iday < 1 || iday > 31) return false;
        
        // 4. 严格日期格式校验（处理闰年等）
        if (!isValidDate(year + month + day)) {
            return false;
        }
        
        // 5. 校验位验证（针对18位）
        if (idCard.length() == 15) return true;
        
        int power = 0;
        char[] cs = idCard.toUpperCase().toCharArray();
        for (int i = 0; i < cs.length; i++) {
            if (i == cs.length - 1 && cs[i] == 'X') break;
            if (cs[i] < '0' || cs[i] > '9') return false;
            if (i < cs.length - 1) {
                power += (cs[i] - '0') * POWER_LIST[i];
            }
        }
        return cs[cs.length - 1] == PARITYBIT[power % 11];
    }
    
    /**
     * 利用Calendar的宽松模式关闭特性验证真实日历日期
     */
    public static boolean isValidDate(String inDate) {
        if (inDate == null) return false;
        SimpleDateFormat dataFormat = new SimpleDateFormat("yyyyMMdd");
        if (inDate.trim().length() != 8) return false;
        dataFormat.setLenient(false);
        try {
            dataFormat.parse(inDate.trim());
        } catch (ParseException e) {
            return false;
        }
        return true;
    }
...

/**
 * 简化版的实时验证逻辑示例
 */
public static boolean idCardValidate(String idStr) {
    int index = 1;
    // 检查首位不为0
    if (idStr.length() >= index && idStr.indexOf("0") == 0) return false;
    index++;
    // 检查地区码是否存在
    Hashtable h = GetAreaCode();
    if (idStr.length() >= index && h.get(idStr.substring(0, index)) == null) return false;
    
    // ... 中间为复杂的年份正则推断逻辑 ... 
    
    // 检查总长度与字符组成
    String filter = "[0-9]{0,17}";
    boolean flag = idStr.matches(filter + (idStr.length() == 18 ? "[0-9,x,X]" : ""));
    return flag;
}