How to remove white space in a string in freemarker templating engine?

Question

Java

Created a DAO table in which the primary key is the id attribute, respectively, in Entity it is specified as a Long type.
Then I pass this id to freemarker, in it id is part of the link, example: a href="/newMessage?message=${message.id}">
When id<1000, then everything works as it should, i.e. id is displayed as it should be (XXX).
As soon as id >1000, there is a space between thousands and hundreds (X XXX). And already in this form, the id is inserted into the link. Clearly, in this form, id is not needed there, to put it mildly.
How to get rid of this gap?
at the input of the freemarker (in the controller), Long is accurately transmitted, debugged. Tried replace: ${message.id?replace(" ", "")}, tried replace with regular expression.
Wasted a lot of time on this crap.

Answer 1

Try explicitly setting the number format
<a href="/newMessage?message=${message.id?c}">