REST Web Service not working - spring

Question

I am just trying to create a simple test web service. I want to access the User in XML format at the following url: http://localhost:8080/Online_Shopping/dispatcher/rest/hello, but when I go to the URL nothing is displayed.
Here is my code for the service:
package com.shopping.controller;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import com.shopping.model.User;
#Path("/rest")
public class RESTController {
#GET
#Path("/hello")
#Produces(MediaType.APPLICATION_XML)
public User getUser() {
return new User("paymon","123",true);
}
}
The following code is in my spring-config.xml
<context:component-scan base-package="com.shopping.controller" />
This is in my web.xml
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/dispatcher/*</url-pattern>
</servlet-mapping>

Answer 1

Your application is running on port 8080 , so to access this URL you need to add in your servlet dispatcher the "Online_Shopping"
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>Online_Shopping/dispatcher/*</url-pattern>
</servlet-mapping>
or Just access your api without Online_Shoppping

Answer 2

You have to use Spring MVC's annotations instead and use #Controller or #RestController to annotate you controller to be registered as a spring controller.
Try this :
#RestController
#RequestMapping(value = "/rest")
public class RESTController {
#RequestMapping(value = "/hello",
method = RequestMethod.GET,
produces = "application/xml")
public User getUser() {
return new User("paymon","123",true);
}
}