[Feature] Use BEST_MATCHING_PATTERN_ATTRIBUTE instead of annotation based route for Spring MVC.

[h0cheung]

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Description

As for now, skywalking-java gets route by parsing annotations, which won't work well when a method or controller class has multiple routes. In this case, the first route in the annotation will always be used.

Spring will set BEST_MATCHING_PATTERN_ATTRIBUTE after the handler has been matched, which can be used to set the operationName.

org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter#handle is a good entry point to get the attribute. It's also used by the spring mvc plugin of OpenTelemetry.

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Related issues

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Are you willing to submit a pull request to implement this on your own?

• Yes I am willing to submit a pull request on my own!

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[wu-sheng]

Hi, this method may be better, but note, this will only be helpful for the multiple routes case.

If you want to change codes for that, we will review it.