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package com.yihu.iot.util.conceal;
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/**
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* 数据脱敏工具
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* Created by zdm on 2019/4/2.
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*/
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public class ConcealUtil {
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private static final int SIZE = 6;
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private static final String SYMBOL = "*";
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/**
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* 电话号码脱敏，达到保密效果
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*
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* @param userName 用户名
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* @return 替换后的用户名
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*/
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public static String phoneConceal(String userName) {
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String userNameAfterReplaced = "";
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if (userName == null) {
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userName = "";
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}
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int nameLength = userName.length();
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if (nameLength <= 1) {
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userNameAfterReplaced = "*";
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} else if (nameLength == 2) {
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userNameAfterReplaced = replaceAction(userName, "(?<=\\d{0})\\d(?=\\d{1})");
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} else if (nameLength >= 3 && nameLength <= 6) {
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userNameAfterReplaced = replaceAction(userName, "(?<=\\d{1})\\d(?=\\d{1})");
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} else if (nameLength >= 7 && nameLength <= 10) {
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userNameAfterReplaced = replaceAction(userName, "(?<=\\d{3})\\d(?=\\d{3})");
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} else if (nameLength >= 11) {
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userNameAfterReplaced = replaceAction(userName, "(?<=\\d{3})\\d(?=\\d{4})");
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}
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return userNameAfterReplaced;
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}
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/**
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* 实际替换动作
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*
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* @param username username
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* @param regular 正则
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* @return
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*/
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private static String replaceAction(String username, String regular) {
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return username.replaceAll(regular, "*");
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}
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/**
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* 身份证号替换，保留前四位和后四位
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* <p>
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* 如果身份证号为空 或者 null ,返回null ；否则，返回替换后的字符串；
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*
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* @param idCard 身份证号
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* @return
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*/
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public static String idCardConceal(String idCard) {
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if (idCard.isEmpty() || idCard == null) {
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return null;
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} else {
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return replaceAction(idCard, "(?<=\\d{6})\\d(?=\\d{4})");
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}
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}
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/**
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* 银行卡替换，保留后四位
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* <p>
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* 如果银行卡号为空 或者 null ,返回null ；否则，返回替换后的字符串；
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*
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* @param bankCard 银行卡号
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* @return
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*/
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public static String bankCardConceal(String bankCard) {
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if (bankCard.isEmpty() || bankCard == null) {
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return null;
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} else {
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return replaceAction(bankCard, "(?<=\\d{0})\\d(?=\\d{4})");
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}
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}
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/**
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* 姓名及地址脱敏
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* @param value
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* @return
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*/
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public static String nameOrAddrConceal(String value) {
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if (null == value || "".equals(value)) {
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return value;
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}
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int len = value.length();
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int pamaone = len / 2;
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int pamatwo = pamaone - 1;
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int pamathree = len % 2;
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StringBuilder stringBuilder = new StringBuilder();
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if (len <= 2) {
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if (pamathree == 1) {
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return SYMBOL;
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}
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stringBuilder.append(value.charAt(0));
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stringBuilder.append(SYMBOL);
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} else {
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if (pamatwo <= 0) {
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stringBuilder.append(value.substring(0, 1));
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stringBuilder.append(SYMBOL);
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stringBuilder.append(value.substring(len - 1, len));
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} else if (pamatwo >= SIZE / 2 && SIZE + 1 != len) {
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int pamafive = (len - SIZE) / 2;
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stringBuilder.append(value.substring(0, pamafive));
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for (int i = 0; i < SIZE; i++) {
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stringBuilder.append(SYMBOL);
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}
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if ((pamathree == 0 && SIZE / 2 == 0) || (pamathree != 0 && SIZE % 2 != 0)) {
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stringBuilder.append(value.substring(len - pamafive, len));
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} else {
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stringBuilder.append(value.substring(len - (pamafive + 1), len));
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}
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} else {
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int pamafour = len - 2;
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stringBuilder.append(value.substring(0, 1));
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for (int i = 0; i < pamafour; i++) {
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stringBuilder.append(SYMBOL);
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}
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stringBuilder.append(value.substring(len - 1, len));
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}
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}
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return stringBuilder.toString();
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}
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/* public static void main(String[] args) throws IOException {
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String strName= nameOrAddrConceal("张三");
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System.out.println(strName);
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String addr= nameOrAddrConceal("厦门市");
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System.out.println(addr);
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String idcard= idCardConceal("350825199012033283");
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System.out.println(idcard);
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String phone= phoneConceal("17689202624");
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System.out.println(phone);
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}*/
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}
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