[JAVA/JSP] Recuperare dati da servlet

[Marcorgan]

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
    <servlet-name>miaServlet</servlet-name>
    <servlet-class>marco.data.GetRisultato</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>miaServlet</servlet-name>
    <url-pattern>/prova.jsp</url-pattern>
</servlet-mapping>
</web-app>

metodo doGet();

public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
	PrintWriter out = response.getWriter();
	out.println("sono in doGet");
	out.close();
}

l'errore è

type: Status report

message: /Training/WEB-INF/Classes/GetRisultato

description: The requested resource (/Training/WEB-INF/Classes/GetRisultato) is not available.