need help for @RequestMapping

[Bibhudutta Pradhan]

here is the url-pattern in web.xml

  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

Here is my controller

@Controller
public class HelloController 
{
        @RequestMapping("/*.km")
	public String handleKm()
	{
		System.out.println("km ext called");
		return "aaa";
	}
	
	@RequestMapping("/*.jsp")
	public String handleJsp()
	{
		System.out.println("jsp pages called");
		return "bbb";
	}
}

while accessing the url with http://localhost:8087/requestMapping/a.km , it is works, calls the handleKm() method.
but with http://localhost:8087/requestMapping/a.jsp , it should call handleJsp().but it does not work. result : HTTP Status 404 - /requestMappingExperiment/a.jsp.
why ??

If I chane the url-pattern from "/" to "/*" , although both method are called , but dont get to the appropriate pages.
May be the "org.springframework.web.servlet.view.InternalResourceViewResolver" is not working .

please help. I m new to SprimgMVC.
Thanks