You can display a credit card number as a series of number groupings. You determine the number of items in each grouping by setting the groupingsize
attribute. For example:
<dsp:valueof bean="CreditCard.number"converter="creditCard" groupingsize="4"/>
This example might render a credit card number with four numbers in each grouping as follows:
7845 5624 5586 1313
In general, you only want full display of a credit card number when a user enters it initially in order to facilitate visual confirmation. Afterward, you might only want to display portions of it so a user can recognize it without jeopardizing the user’s privacy. With numcharsunmasked
, you can indicate how many numbers you want to unmask, counting from right to left. The masking character is X
, unless you specify otherwise using the maskcharacter
attribute.
Here are some examples:
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