org.treeleafj.xmax.validate.IDCardValidator Maven / Gradle / Ivy
package org.treeleafj.xmax.validate;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 身份证校验
*
* Created by leaf on 2017/10/30.
*/
public class IDCardValidator implements Validator {
private static Map cityMap = new HashMap<>();
private static final String regex = "^(\\d{6})(19|20)(\\d{2})(1[0-2]|0[1-9])(0[1-9]|[1-2][0-9]|3[0-1])(\\d{3})(\\d|X|x)?$";
private static Pattern pattern = Pattern.compile(regex);
static {
cityMap.put("11", "北京");
cityMap.put("12", "天津");
cityMap.put("13", "河北");
cityMap.put("14", "山西");
cityMap.put("15", "内蒙古");
cityMap.put("21", "辽宁");
cityMap.put("22", "吉林");
cityMap.put("23", "黑龙江");
cityMap.put("31", "上海");
cityMap.put("32", "江苏");
cityMap.put("33", "浙江");
cityMap.put("34", "安徽");
cityMap.put("35", "福建");
cityMap.put("36", "江西");
cityMap.put("37", "山东");
cityMap.put("41", "河南");
cityMap.put("42", "湖北");
cityMap.put("43", "湖南");
cityMap.put("44", "广东");
cityMap.put("45", "广西");
cityMap.put("46", "海南");
cityMap.put("50", "重庆");
cityMap.put("51", "四川");
cityMap.put("52", "贵州");
cityMap.put("53", "云南");
cityMap.put("54", "西藏");
cityMap.put("61", "陕西");
cityMap.put("62", "甘肃");
cityMap.put("63", "青海");
cityMap.put("64", "宁夏");
cityMap.put("65", "新疆");
}
/**
* 是否采用严格校验
*/
private boolean strict = true;
public IDCardValidator() {
}
/**
* @param strict 是否采用严格模式校验身份证,默认是true
*/
public IDCardValidator(boolean strict) {
this.strict = strict;
}
@Override
public boolean validate(String obj) {
if (strict) {
return this.is18ByteIdCardComplex(obj);
}
return this.is18ByteIdCard(obj);
}
/**
* 18位身份证校验,粗略的校验
*
* @param idCard 身份证
*/
public boolean is18ByteIdCard(String idCard) {
Matcher matcher = pattern.matcher(idCard);
if (matcher.matches()) {
return true;
}
return false;
}
/**
* 18位身份证校验,严格的校验
*
* @param idCard 身份证
*/
public boolean is18ByteIdCardComplex(String idCard) {
Matcher matcher = pattern.matcher(idCard);
int[] prefix = new int[]{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
int[] suffix = new int[]{1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2};
if (matcher.matches()) {
if (cityMap.get(idCard.substring(0, 2)) == null) {
return false;
}
int idCardWiSum = 0; //用来保存前17位各自乖以加权因子后的总和
for (int i = 0; i < 17; i++) {
idCardWiSum += Integer.valueOf(idCard.substring(i, i + 1)) * prefix[i];
}
int idCardMod = idCardWiSum % 11;//计算出校验码所在数组的位置
String idCardLast = idCard.substring(17);//得到最后一位身份证号码
//如果等于2，则说明校验码是10，身份证号码最后一位应该是X
if (idCardMod == 2) {
if (idCardLast.equalsIgnoreCase("x")) {
return true;
} else {
return false;
}
} else {
//用计算出的验证码与最后一位身份证号码匹配，如果一致，说明通过，否则是无效的身份证号码
if (idCardLast.equals(suffix[idCardMod] + "")) {
return true;
} else {
return false;
}
}
}
return false;
}
}