| Package | Description | 
|---|---|
| org.springframework.web.servlet.config.annotation | Annotation-based setup for Spring MVC. | 
| org.springframework.web.socket.server.support | Server-side support classes including container-specific strategies
 for upgrading a request. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected SimpleUrlHandlerMapping | DefaultServletHandlerConfigurer. buildHandlerMapping()Return a handler mapping instance ordered at  Ordered.LOWEST_PRECEDENCEcontaining theDefaultServletHttpRequestHandlerinstance mapped
 to"/**"; ornullif default servlet handling was not
 been enabled. | 
| protected SimpleUrlHandlerMapping | ViewControllerRegistry. buildHandlerMapping()Return the  HandlerMappingthat contains the registered view
 controller mappings, ornullfor no registrations. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | WebSocketHandlerMappingAn extension of  SimpleUrlHandlerMappingthat is also aSmartLifecyclecontainer and propagates start and stop calls to any
 handlers that implementLifecycle. |