Make it easier to determine each servlet filter's order

Closes gh-17520

spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -3229,34 +3229,19 @@ If convention-based mapping is not flexible enough, you can use the
 `ServletRegistrationBean`, `FilterRegistrationBean`, and
 `ServletListenerRegistrationBean` classes for complete control.
 
-Spring Boot ships with many auto-configurations that may define Filter beans. Here are a
-few examples of Filters and their respective order (lower order value means higher
-precedence):
-
-|===
-| Servlet Filter | Order
-
-|`OrderedCharacterEncodingFilter`
-|`Ordered.HIGHEST_PRECEDENCE`
-
-|`WebMvcMetricsFilter`
-|`Ordered.HIGHEST_PRECEDENCE + 1`
-
-|`ErrorPageFilter`
-|`Ordered.HIGHEST_PRECEDENCE + 1`
-
-|`HttpTraceFilter`
-|`Ordered.LOWEST_PRECEDENCE - 10`
-|===
-
-It is usually safe to leave Filter beans unordered.
-
-If a specific order is required, you should avoid configuring a Filter that reads the
-request body at `Ordered.HIGHEST_PRECEDENCE`, since it might go against the character
+Filter beans can be ordered to control their position in the filter chain by using
+`@Order` or implemented `Ordered`. It is usually safe to leave Filter beans unordered.
+However, if a specific order is required, you should avoid configuring a Filter that reads
+the request body at `Ordered.HIGHEST_PRECEDENCE`, since it might go against the character
 encoding configuration of your application. If a Servlet filter wraps the request, it
 should be configured with an order that is less than or equal to
 `OrderedFilter.REQUEST_WRAPPER_FILTER_MAX_ORDER`.
 
+TIP: To see the order of every `Filter` in your application, enable debug level logging
+for the `web` <<boot-features-custom-log-groups,logging group>>
+(`logging.level.web=debug`). Details of the registered filters, including their order and
+URL patterns, will then be logged at startup.
+
 
 
 [[boot-features-embedded-container-context-initializer]]

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/AbstractFilterRegistrationBean.java

@@ -260,6 +260,7 @@ public abstract class AbstractFilterRegistrationBean<T extends Filter> extends D
 				builder.append(" urls=").append(this.urlPatterns);
 			}
 		}
+		builder.append(" order=").append(getOrder());
 		return builder.toString();
 	}