Sensitive information (user name, bank card number, Social Security number, mobile phone number) with asterisks instead

There are some areas in the project where confidentiality is required:

• The user name part needs to be replaced with * to achieve the confidentiality effect;
• A part of the bank card number needs to be replaced by *
• Part of the ID number needs to be replaced with *

Share this tool class.

1  PackageCom.chinasun;2 3 /**4 * File Description:string is replaced to achieve a confidential effect5  *6 * According to the need to rewrite the following regular is a number, mobile phone number code is not written with the same ID number7  */8  Public classStringreplaceutil {9     /**Ten * According to the different length of the user name, to replace, to achieve a confidential effect One      * A      * @paramUserName - * User name -      * @returnuser name after replacement the      */ -      Public Staticstring Usernamereplacewithstar (String userName) { -String usernameafterreplaced = ""; -  +         if(UserName = =NULL) { -UserName = ""; +         } A  at         intNamelength =username.length (); - System.out.println (namelength); -  -         if(Namelength <= 1) { -usernameafterreplaced = "*"; -}Else if(Namelength = = 2) { inusernameafterreplaced = Replaceaction (UserName, "(? <=\\w{0}) \\w (? =\\w{1})"); -}Else if(Namelength >= 3 && namelength <= 6) { tousernameafterreplaced = Replaceaction (UserName, "(? <=\\d{1}) \\d (? =\\d{1})"); +}Else if(Namelength = = 7) { -usernameafterreplaced = Replaceaction (UserName, "(? <=\\d{1}) \\d (? =\\d{2})"); the}Else if(Namelength = = 8) { *usernameafterreplaced = Replaceaction (UserName, "(? <=\\d{2}) \\d (? =\\d{2})"); $}Else if(Namelength = = 9) {Panax Notoginsengusernameafterreplaced = Replaceaction (UserName, "(? <=\\d{2}) \\d (? =\\d{3})"); -}Else if(Namelength = = 10) { theusernameafterreplaced = Replaceaction (UserName, "(? <=\\d{3}) \\d (? =\\d{3})"); +}Else if(Namelength >= 11) { Ausernameafterreplaced = Replaceaction (UserName, "(? <=\\d{3}) \\d (? =\\d{4})"); the         } +  -         returnusernameafterreplaced; $  $     } -  -     /** the * Actual replacement action -      *Wuyi      * @paramusername the * Username -      * @paramRegular Wu * Regular -      * @return About      */ $     Private Staticstring Replaceaction (string username, string regular) { -         returnUsername.replaceall (Regular, "*"); -     } -  A     /** + * ID number replacement, keep the top four and last four digits the      * - * Returns NULL if the ID number is empty or null, otherwise, returns the replaced string; $      * the      * @paramIdcard the * ID Number the      * @return the      */ -      Public Staticstring Idcardreplacewithstar (String idcard) { in  the         if(Idcard.isempty () | | idcard = =NULL) { the             return NULL; About}Else { the             returnReplaceaction (Idcard, "(? <=\\d{4}) \\d (? =\\d{4})"); the         } the     } +  -     /** the * Bank card replacement, reserved after four digitsBayi      * the * Returns null if the bank card number is empty or null, otherwise, returns the replaced string; the      * -      * @paramBankcard - * Bank card number the      * @return the      */ the      Public Staticstring Bankcardreplacewithstar (String bankcard) { the  -         if(Bankcard.isempty () | | bankcard = =NULL) { the             return NULL; the}Else { the             returnReplaceaction (Bankcard, "(? <=\\d{0}) \\d (? =\\d{4})");94         } the     } the}

Sensitive information (user name, bank card number, Social Security number, mobile phone number) with asterisks instead