Improve RestControllerAdvice documentation
Closes gh-34866
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@@ -10,18 +10,20 @@ to any controller. Moreover, as of 5.3, `@ExceptionHandler` methods in `@Control
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can be used to handle exceptions from any `@Controller` or any other handler.
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`@ControllerAdvice` is meta-annotated with `@Component` and therefore can be registered as
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a Spring bean through xref:core/beans/java/instantiating-container.adoc#beans-java-instantiating-container-scan[component scanning]
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. `@RestControllerAdvice` is meta-annotated with `@ControllerAdvice`
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and `@ResponseBody`, and that means `@ExceptionHandler` methods will have their return
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value rendered via response body message conversion, rather than via HTML views.
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a Spring bean through xref:core/beans/java/instantiating-container.adoc#beans-java-instantiating-container-scan[component scanning].
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`@RestControllerAdvice` is a shortcut annotation that combines `@ControllerAdvice`
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with `@ResponseBody`, in effect simply an `@ControllerAdvice` whose exception handler
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methods render to the response body.
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On startup, `RequestMappingHandlerMapping` and `ExceptionHandlerExceptionResolver` detect
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controller advice beans and apply them at runtime. Global `@ExceptionHandler` methods,
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from an `@ControllerAdvice`, are applied _after_ local ones, from the `@Controller`.
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By contrast, global `@ModelAttribute` and `@InitBinder` methods are applied _before_ local ones.
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The `@ControllerAdvice` annotation has attributes that let you narrow the set of controllers
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and handlers that they apply to. For example:
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By default, both `@ControllerAdvice` and `@RestControllerAdvice` apply to any controller,
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including `@Controller` and `@RestController`. Use attributes of the annotation to narrow
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the set of controllers and handlers that they apply to. For example:
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[tabs]
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======
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