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Document additional configuration that is required for spring.mvc.throw-exception-if-no-handler-found=true to be effective #31660

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Document additional configuration that is required for spring.mvc.throw-exception-if-no-handler-found=true to be effective #31660

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2 changes: 2 additions & 0 deletions spring-boot-project/spring-boot-docs/src/docs/asciidoc/web/servlet.adoc
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Expand Up @@ -109,6 +109,8 @@ Any resources with a path in `+/webjars/**+` are served from jar files if they a
TIP: Do not use the `src/main/webapp` directory if your application is packaged as a jar.
Although this directory is a common standard, it works *only* with war packaging, and it is silently ignored by most build tools if you generate a jar.

TIP: If you configure `spring.mvc.throw-exception-if-no-handler-found=true`, it will not work with default `+spring.mvc.static-path-pattern=/**+`, because each url matches `+/**+`. Url without handler must be excluded from _static-path-pattern_ to `NoHandlerFoundException` be thrown. Quite effective exclusion is `spring.mvc.static-path-pattern=`

Spring Boot also supports the advanced resource handling features provided by Spring MVC, allowing use cases such as cache-busting static resources or using version agnostic URLs for Webjars.

To use version agnostic URLs for Webjars, add the `webjars-locator-core` dependency.
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