java如何验证身份证号码（Java验证身份证号码是否有效）
身份证号码验证
详细代码如下：
MatcherUtils.java
public class MatcherUtils {
/***
* 验证是不是有效的身份证号
* @param certNo
* @return
*/
public static boolean isIDCard(String certNo) {
return ValidateIDCardUtils.isIDCard(certNo);
}
}
public class ValidateIDCardUtils {
final static Map<Integer, String> zoneNum = new HashMap<Integer, String>();
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 = null;
year = certNo.length() == 15 ? getIdcardCalendar(certNo) : 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;
}
// 校验出生日期
String birthday = year "-" month "-" day;
if (!isValidDate(birthday, "yyyy-MM-dd")) {
return false;
}
// 校验"校验码"
if (certNo.length() == 15) {
return true;
}
return cs[cs.length - 1] == PARITYBIT[power % 11];
}
private static String getIdcardCalendar(String certNo) {
// 获取出生年月日
String birthday = certNo.substring(6, 12);
SimpleDateFormat ft = new SimpleDateFormat("yyMMdd");
Date birthdate = null;
try {
birthdate = ft.parse(birthday);
} catch (java.text.ParseException e) {
e.printStackTrace();
}
Calendar cday = Calendar.getInstance();
cday.setTime(birthdate);
String year = String.valueOf(cday.get(Calendar.YEAR));
return year;
}
public static boolean isValidDate(String date, String dateFormat) {
boolean convertSuccess = true;
SimpleDateFormat format = new SimpleDateFormat(dateFormat);
try {
format.setLenient(false);
format.parse(date);
} catch (ParseException e) {
convertSuccess = false;
}
return convertSuccess;
}
}
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