Spring Handler Mappings

BeanNameUrlHandlerMapping
It is the default HandlerMapping implementation.
It maps request specific URL to the beans with the similar name.

SimpleUrlHandlerMapping
SimpleUrlHandlerMapping is used for direct and declarative mapping between bean instances and URLs or between bean names and URLs.

ControllerClassNameHandlerMapping
ControllerClassNameHandlerMapping maps URL to a registered controllers in XML that starts with the similar name.
or a controller annotated with the @Controller annotation that starts with the similar name.