关于身份证号码校验规则,这里整理了一个调用工具,希望可以帮到各位:
/**
* desc: 身份证校验规则
* @author lzy
*/
public class IdCardCheckUtils {
//身份证前17位数字依次乘以对应的权重因子
public static final Integer[] idCardWeight = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
//身份证最后一位对应的校验码
public static final String[] idCardCheck = {"1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};
//组装根据余数,对应一个指定的校验码
Map<Integer, String> idCardMap = new HashMap<>();
public Boolean idCardNumberCheck(String idCardNo) {
boolean check = false;
//将其转成大写有的身份证最后一位是字母
String idCard = idCardNo.toUpperCase();
//15位身份证转成18位
if (idCardNo.length() == 15) {
if (!(idCardNo.matches("[0-9]{17}[0-9|x]|[0-9]{15}"))) {
System.out.println("请输入正确格式的15位身份证号码");
return false;
} else {
//15位转换为18位
String s2 = idCardNo.substring(0, 6);
String s3 = idCardNo.substring(6, 15);
String changed = s2.concat("19").concat(s3);
idCard = changed.toUpperCase();
}
}
//获取身份证最后一位进行验证
String lastStr = idCard.substring(idCard.length() - 1);
//获取身份证前17位
String firstStr = idCard.substring(0, 17);
//验证身份证前17位是否为数字
boolean isDigits = Pattern.matches("^\\d{17}", firstStr);
if (!isDigits) {
return false;
}
//全局变量
if (idCardMap.isEmpty()) {
for (int i = 0; i <= 10; i++) {
idCardMap.put(i, idCardCheck[i]);
}
}
char[] idCardCharNumber = idCard.toCharArray();
Integer resultSum = 0;
for (int i = 0; i < idCardCharNumber.length - 1; i++) {
resultSum += Character.getNumericValue(idCardCharNumber[i]) * idCardWeight[i];
}
//将相加的前17位数字依次乘以对应的权重因子相加,相加的结果除以11,得到余数
Integer lastResult = resultSum % 11;
//根据余数,对应一个指定的校验码。最终得到的校验码就是身份证号码的最后一位数字。通过这个校验码,可以验证前面17位数字是否正确,从而提高身份证号码的准确性
if (idCardMap.containsKey(lastResult)) {
check = idCardMap.get(lastResult).equals(lastStr);
}
return check;
}
public static void main(String[] args) throws Exception {
IdCardCheckUtils test = new IdCardCheckUtils();
String idCard = "110101190001011009";
Boolean idCardNumberCheck = test.idCardNumberCheck(idCard);
if (!idCardNumberCheck) {
System.out.println("身份证号码有误!");
System.exit(0);
}
System.out.println("出生日期:" + idCard.substring(6, 10) + "." + idCard.substring(10, 12) + "." + idCard.substring(12, 14));
System.out.println("性别:" + (Integer.parseInt(idCard.substring(16, 17)) % 2 == 0 ? "女" : "男"));
}
}