@RequestHeader name/value does not accept placeholders [SPR-13952]

[spring-projects-issues]

Bjorn Harvold opened SPR-13952 and commented

I would like to be able to control the name of my auth token per environment. Ergo, I would like to be able to do something like this:

@RequestHeader(value = "${env.auth.token}", required = true)

Currently, this only works with a constant string.

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Affects: 4.2.4

Issue Links:

• Support SpEL next to placeholders in annotation attributes (e.g. @Scheduled) [SPR-13625] #18203 Support SpEL next to placeholders in annotation attributes (e.g. @Scheduled)
• Placeholder resolution for annotation attributes is not active by default [SPR-14140] #18712 Placeholder resolution for annotation attributes is not active by default

Referenced from: commits e0d7c6b

[spring-projects-issues]

Juergen Hoeller commented

As of 4.3, we resolve all such name attributes (which are mirrored as value) on handler method arguments, the same way that we process defaultValue already. This means that placeholders as well expressions are getting evaluated now.

Juergen