Spring - Logging all request mappings

RequestMappingLogger.java

@Component
public class RequestMappingLogger implements ApplicationListener<ContextRefreshedEvent> {
  public static final Logger logger = LoggerFactory.getLogger(RequestMappingLogger.class);
  
  @Override
  public void onApplicationEvent(ContextRefreshedEvent event) {
    RequestMappingHandlerMapping requestMappingHandlerMapping = event.getApplicationContext().getBean(RequestMappingHandlerMapping.class);
    for (Map.Entry<RequestMappingInfo, HandlerMethod> entry: requestMappingHandlerMapping.getHandlerMethods().entrySet()) {
      Method handler = entry.getValue().getMethod();
      for (String pattern : entry.getKey().getPatternsCondition().getPatterns()) {
        for (RequestMethod method : entry.getKey().getMethodsCondition().getMethods()) {
          String[] strings = {pattern, method.name(), handler.getDeclaringClass().getName() + "#" + handler.getName()};
          logger.debug(JoinerUtil.byComma(strings));
        }
      }
    }
  }
}