How to inject a string that contains ${...} in spring application.properites

Question

I wanted to provide following key value pair in the applicaiton.properties file in spring and wanted spring to ignore the place holder without resolving it.

output.folder=${date:now:yyyy-MM-dd}/success/${header.CamelFileName}

But while loading spring is trying to provide the place holder value, for instance header.CamelFileName and would throw exception. Is there any way this can be escaped?

score 0 · Accepted Answer · answered Dec 10 '18 at 08:09

You can try something like this, to escape a placeholder:

$=$
output.folder=${date:now:yyyy-MM-dd}/success/${$}{header.CamelFileName}

It could look a little bit tricky, but you have to escape a dollar sign, in order not to turn a ${header.CamelFileName} into reference

How to inject a string that contains ${...} in spring application.properites

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