脱敏

/**脱敏
* 手机号/银行卡/账户/身份证
* @param value
* @return
*/
public static String desensitization(String str) {
String val = "";
if (str != null) {
val = str.substring(0, 4) + "******" + str.substring(str.length() - 4);
}
return val;
}