how can spring mvc mapping to /*

[javeer]

I'm curious how can springMVC mapping to /*

I tried my example, one servlet which mapping to "/*" just render one jsp page "/WEB-INF/jsps/hello.jsp"

	
<servlet>
	<servlet-name>helloServlet</servlet-name>
	<servlet-class>my.HelloServlet</servlet-class>
	<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
	<servlet-name>helloServlet</servlet-name>
	<url-pattern>/*</url-pattern>
</servlet-mapping>

and the java code is:

public class HelloServlet extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response){
        request.getRequestDispatcher("/WEB-INF/jsps/hello.jsp").forward(request, response);
    }
}

but this will failed with infinite loop

Since the helloServlet mapping to /*, it will also catch the requestDispatcher's forward and cause the infinitely loop.

How do springMVC resolve this issue?

[Marten Deinum]

It will only pass through the servlet again if the file cannot be found/rendered... Also if you are loading images etc in your jsp those will also hit the servlet...