Spring Boot REST @RequestParam not being Validated

Question

I have tried a number of examples from the net and cannot get Spring to validate my query string parameter. It doesn\'t seem execute the REGEX / fail.

packag         


        

Answer 1

You have incorrect regex

"^[0-9]+(,[0-9]+)*$"

It will never parse

1,bob

Maybe, you need:

"^\w+(,\w+)*$"

And if you need to parse also an empty line, use:

"^(\w+(,\w+)*)?$"