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@@ -3,6 +3,8 @@ package com.zhongshu.card.server.core.util;
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import com.zhongshu.card.server.core.dataConfig.PasswordCheckConf;
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import org.apache.commons.lang3.StringUtils;
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+import java.util.HashMap;
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+import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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@@ -14,6 +16,12 @@ import java.util.regex.Pattern;
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*/
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public class ValidateUtils {
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+ //身份证前17位数字依次乘以对应的权重因子
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+ public static final Integer[] idCardWeight = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
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+
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+ //身份证最后一位对应的校验码
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+ public static final String[] idCardCheck = {"1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};
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+
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/**
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* 验证是否是手机号码
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*
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@@ -34,8 +42,39 @@ public class ValidateUtils {
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* @return
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*/
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public static boolean isIDCard(String idCard) {
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- if (StringUtils.isNotEmpty(idCard) && idCard.trim().length() == 18) {
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- return true;
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+ if (StringUtils.isEmpty(idCard) || idCard.trim().length() != 18) {
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+ return false;
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+ }
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+
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+ idCard = idCard.trim().toUpperCase();
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+ //获取身份证最后一位进行验证
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+ String lastStr = idCard.substring(idCard.length() - 1);
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+ //获取身份证前17位
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+ String firstStr = idCard.substring(0, 17);
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+ //验证身份证前17位是否为数字
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+ boolean isDigits = Pattern.matches("^\\d{17}", firstStr);
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+ if (!isDigits) {
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+ return false;
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+ }
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+ // 组装根据余数,对应一个指定的校验码
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+ Map<Integer, String> idCardMap = new HashMap<>();
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+ // 全局变量
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+ if (idCardMap.isEmpty()) {
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+ for (int i = 0; i < 10; i++) {
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+ idCardMap.put(i, idCardCheck[i]);
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+ }
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+ }
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+
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+ char[] idCardCharNumber = idCard.toCharArray();
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+ Integer resultSum = 0;
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+ for (int i = 0; i < idCardCharNumber.length - 1; i++) {
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+ resultSum += Character.getNumericValue(idCardCharNumber[i]) * idCardWeight[i];
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+ }
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+ // 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
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+ Integer lastResult = resultSum % 11;
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+ // 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
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+ if (idCardMap.containsKey(lastResult)) {
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+ return idCardMap.get(lastResult).equals(lastStr);
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}
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return false;
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}
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