关于java:脱敏工具类

/** * 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("赵镇啊");        String mobile = commonDisplay("13900000000");        String mail = commonDisplay("admin@imooc.com");        String address = commonDisplay("北京大运河东路888号");        System.out.println(name);        System.out.println(mobile);        System.out.println(mail);        System.out.println(address);    }    /**     * 通用脱敏办法     * @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();    }}

脱敏工具类，用于手机号昵称等脱敏

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