spring mvc how to configure url mapping -

i new spring mvc. want implement this:

i have following urls, want them handled 1 controller:

/entity/* 

in web.xml, defined dispatcher servlet this:

<servlet>         <servlet-name>dispatcher</servlet-name>         <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class>         <init-param>             <param-name>contextconfiglocation</param-name>             <param-value>/web-inf/etc/webmvc.xml</param-value>         </init-param>         <load-on-startup>1</load-on-startup>     </servlet>     <servlet-mapping>         <servlet-name>dispatcher</servlet-name>         <url-pattern>/action/*</url-pattern>         <url-pattern>/data/*</url-pattern>         <url-pattern>/entity/*</url-pattern>     </servlet-mapping> 

and controller:

@controller @requestmapping(value="/entity") public class entitycontroller {      @requestmapping(value="/*")     public @responsebody object operate(@requestbody entityoperationrequest datareq){         return null;     }  } 

this not work, how can make entitycontroller handle urls begin /entity/, following url hit it:

http://host:port/context_root/entity/sys/user http://host:port/context_root/entity/biz/order http://host:port/context_root/entity/biz/foo/bar .... 

there different levels upto can perform url mapping (like class level, method level etc.) example you. spring mvc @requestmapping annotation example