UrlPathHelper in PathExtensionContentNegotiationStrategy should be configurable [SPR-14454]

[spring-projects-issues]

Michael Feige opened SPR-14454 and commented

Hello,

I have a scenario, where I am required to change some behaviour of the UrlPathHelper. I was able to inject my Implementation via a BeanPostProcessor nearly everywhere I needed to. But then I figured that org.springframework.web.accept.PathExtensionContentNegotiationStrategy (which seems to be used when I map mvc-resources) holds a "private final static" Instance of the UrlPathHelper.

Would it be an option to make it an Instance-member?

I marked it as a bug, because there are multiple places (as when xml-configuring mvc:annotation-driven or websockets) where overriding the UrlPathHelper is encouraged. So I think it should be possible in general.

Regards,
Michael

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Affects: 4.2.5

Referenced from: commits 5c3c0f7, 82ca201, 84afc60

Backported to: 4.2.8

[spring-projects-issues]

Juergen Hoeller commented

I've added a setUrlPathMatcher method to PathExtensionContentNegotiationStrategy, and also aligned ResourceUrlProvider's and RequestMappingInfo's UrlPathMatcher setter/getter signatures at that opportunity. To be backported to 4.3.2 and 4.2.8.