EnableReactiveMethodSecurity Supports Custom MethodSecurityExpressionHandler

[kse-music]

Closes gh-15715

[jzheaux]

Thanks for this, @kse-music, though I'd prefer to start with #7459 - would you consider updating your PR to pick up a custom expression handler instead?

This Spring Framework enhancement may prove helpful, though I'm not certain.

[kse-music]

@jzheaux Used Fallback to identify the default bean .When user not provide customized, the default will be used.

[jzheaux]

Thanks, @kse-music! I've left some feedback inline.

Also, would you feel up to porting the Customizing Expression Handling section in the servlet documentation over to the reactive documentation? If so, please make the necessary modifications so it makes sense in the context of the reactive documentation. Or, if not, no problem, I can add that as a polish.

[kse-music]

@jzheaux All feedback is completed as expected.But I don't quite understand why the Spring-Security-Docs: Antora ' task execute failed.

[jzheaux]

Thanks, @kse-music, this is now merged into main along with a polish of be6dc1d to apply #15719 (comment)