private void detectResourceHandlers(ApplicationContext context) { Map<String, SimpleUrlHandlerMapping> beans = context.getBeansOfType(SimpleUrlHandlerMapping.class); List<SimpleUrlHandlerMapping> mappings = new ArrayList<>(beans.values()); AnnotationAwareOrderComparator.sort(mappings); mappings.forEach(mapping -> mapping.getHandlerMap().forEach((pattern, handler) -> { if (handler instanceof ResourceWebHandler) { ResourceWebHandler resourceHandler = (ResourceWebHandler) handler; this.handlerMap.put(pattern, resourceHandler); } })); if (this.handlerMap.isEmpty()) { logger.trace("No resource handling mappings found"); } }
/** * Register all handlers specified in the URL map for the corresponding paths. * @param urlMap a Map with URL paths as keys and handler beans or bean names as values * @throws BeansException if a handler couldn't be registered * @throws IllegalStateException if there is a conflicting handler registered */ protected void registerHandlers(Map<String, Object> urlMap) throws BeansException { if (urlMap.isEmpty()) { logger.trace("No patterns in " + formatMappingName()); } else { for (Map.Entry<String, Object> entry : urlMap.entrySet()) { String url = entry.getKey(); Object handler = entry.getValue(); // Prepend with slash if not already present. if (!url.startsWith("/")) { url = "/" + url; } // Remove whitespace from handler bean name. if (handler instanceof String) { handler = ((String) handler).trim(); } registerHandler(url, handler); } if (logger.isDebugEnabled()) { logger.debug("Patterns " + getHandlerMap().keySet() + " in " + formatMappingName()); } } }
protected void detectResourceHandlers(ApplicationContext appContext) { logger.debug("Looking for resource handler mappings"); Map<String, SimpleUrlHandlerMapping> map = appContext.getBeansOfType(SimpleUrlHandlerMapping.class); List<SimpleUrlHandlerMapping> handlerMappings = new ArrayList<>(map.values()); AnnotationAwareOrderComparator.sort(handlerMappings); for (SimpleUrlHandlerMapping hm : handlerMappings) { for (String pattern : hm.getHandlerMap().keySet()) { Object handler = hm.getHandlerMap().get(pattern); if (handler instanceof ResourceWebHandler) { ResourceWebHandler resourceHandler = (ResourceWebHandler) handler; if (logger.isDebugEnabled()) { logger.debug("Found resource handler mapping: URL pattern=\"" + pattern + "\", " + "locations=" + resourceHandler.getLocations() + ", " + "resolvers=" + resourceHandler.getResourceResolvers()); } this.handlerMap.put(pattern, resourceHandler); } } } }