Package org.springframework.web.reactive.config

Class ResourceHandlerRegistry

java.lang.Object
org.springframework.web.reactive.config.ResourceHandlerRegistry
public class ResourceHandlerRegistry extends Object
Stores registrations of resource handlers for serving static resources such as images, css files and others through Spring WebFlux including setting cache headers optimized for efficient loading in a web browser. Resources can be served out of locations under web application root, from the classpath, and others.

To create a resource handler, use addResourceHandler(String...) providing the URL path patterns for which the handler should be invoked to serve static resources (for example, "/resources/**").

Then use additional methods on the returned ResourceHandlerRegistration to add one or more locations from which to serve static content from (for example, {"/", "classpath:/META-INF/public-web-resources/"}) or to specify a cache period for served resources.

Since:
5.0
Author:
Rossen Stoyanchev, Brian Clozel

  • Constructor Details

    • ResourceHandlerRegistry

      public ResourceHandlerRegistry(ResourceLoader resourceLoader)
      Create a new resource handler registry for the given resource loader (typically an application context).
      Parameters:
      resourceLoader - the resource loader to use

  • Method Details

    • setResourceUrlProvider

      public void setResourceUrlProvider(@Nullable ResourceUrlProvider resourceUrlProvider)
      Configure the ResourceUrlProvider that can be used by ResourceTransformer instances.
      Parameters:
      resourceUrlProvider - the resource URL provider to use
      Since:
      5.0.11

    • addResourceHandler

      public ResourceHandlerRegistration addResourceHandler(String... patterns)
      Add a resource handler for serving static resources based on the specified URL path patterns. The handler will be invoked for every incoming request that matches to one of the specified path patterns.

      Patterns like "/static/**" or "/css/{filename:\\w+\\.css}" are allowed. See PathPattern for more details on the syntax.

      Returns:
      a ResourceHandlerRegistration to use to further configure the registered resource handler

    • hasMappingForPattern

      public boolean hasMappingForPattern(String pathPattern)
      Whether a resource handler has already been registered for the given path pattern.

    • setOrder

      public ResourceHandlerRegistry setOrder(int order)
      Specify the order to use for resource handling relative to other HandlerMappings configured in the Spring configuration.

      The default value used is Integer.MAX_VALUE-1.

    • getHandlerMapping

      protected @Nullable AbstractUrlHandlerMapping getHandlerMapping()
      Return a handler mapping with the mapped resource handlers; or null in case of no registrations.