package com.imooc.utils;
/**
* @Description 通用-脱-敏-工具类
* 可用于：
* 用户名
* 手机号
* 邮箱
* 地址等
**/
public class DesensitizationUtil {
private static final int SIZE = 6;
private static final String SYMBOL ="*";
public static void main(String[] args) {
String name = commonDisplay("小小孩");
String mobile = commonDisplay("13100000005");
String mail = commonDisplay("1163000000@qq.com");
String address = commonDisplay("湖南省湘潭市岳塘区岳塘大道");
System.out.println(name);
System.out.println(mobile);
System.out.println(mail);
System.out.println(address);
}
/**
* 通用脱敏方法
* @param value
* @return
*/
public static String commonDisplay(String value) {
if (null == value || "".equals(value)) {
return value;
}
int len = value.length();
int pamaone = len / 2;
int pamatwo = pamaone - 1;
int pamathree = len % 2;
StringBuilder stringBuilder = new StringBuilder();
if (len <= 2) {
if (pamathree == 1) {
return SYMBOL;
}
stringBuilder.append(SYMBOL);
stringBuilder.append(value.charAt(len - 1));
} else {
if (pamatwo <= 0) {
stringBuilder.append(value.substring(0, 1));
stringBuilder.append(SYMBOL);
stringBuilder.append(value.substring(len - 1, len));
} else if (pamatwo >= SIZE / 2 && SIZE + 1 != len) {
int pamafive = (len - SIZE) / 2;
stringBuilder.append(value.substring(0, pamafive));
for (int i = 0; i < SIZE; i++) {
stringBuilder.append(SYMBOL);
}
if ((pamathree == 0 && SIZE / 2 == 0) || (pamathree != 0 && SIZE % 2 != 0)) {
stringBuilder.append(value.substring(len - pamafive, len));
} else {
stringBuilder.append(value.substring(len - (pamafive + 1), len));
}
} else {
int pamafour = len - 2;
stringBuilder.append(value.substring(0, 1));
for (int i = 0; i < pamafour; i++) {
stringBuilder.append(SYMBOL);
}
stringBuilder.append(value.substring(len - 1, len));
}
}
return stringBuilder.toString();
}
} |
