Rest Service HttpStatus code 400 GET /user/%7Bid%7D - spring

Question

I'm simply trying to get userdata via controller service interface But I'm always getting
[WARN] 400 - GET /user/%7Bid%7D (127.0.0.1) 1403 bytes
My Controller:
#Controller
#RequestMapping(value ="/user")
public class AdminSpringController {
#RequestMapping( value = "/{id}", method = RequestMethod.GET)
#ResponseStatus(HttpStatus.OK)
public #ResponseBody GWTUser getUser(#PathVariable Integer id) throws NotFoundException {
...
}
}
My Service, it's a restygwt interface:
#Path("/user")
public interface UserAdminRestService extends RestService {
#GET
#Path("/{id}")
#Produces(MediaType.APPLICATION_JSON)
#Consumes(MediaType.APPLICATION_JSON)
public void getUser(Integer id, MethodCallback<GWTUser> callback);
}
My servlet:
<servlet>
<servlet-name>userService</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/servlet/userService-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>userService</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
My servlet.xml
<context:component-scan base-package="com.app.admin.controller" />
<tx:annotation-driven />
<mvc:annotation-driven />
<!--This tag allows for mapping the DispatcherServlet to "/" (all extensions etc) -->
<mvc:default-servlet-handler/>
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>
I Already have a method (user/users which returns all users, it's working fine but I think the problem is with my {id} (parameter variable), because it seems that my service or something parses my {id} as you can see at my error /user/%7Bid%7D. Thx for any help.

Answer 1

Missing #PathParam("id") in the service interface was the problem.
public void getUser(#PathParam("id") Integer id, MethodCallback<GWTUser> callback);
And for example UPDATE:
#PUT
#Path("/update")
#Produces(MediaType.APPLICATION_JSON)
#Consumes(MediaType.APPLICATION_JSON)
public void update(GWTUser user, MethodCallback<UserServiceResponse> callback);
you need to set the RequestBody
#RequestMapping( value = "/update", method = RequestMethod.PUT)
#ResponseStatus(HttpStatus.OK)
public void update(#RequestBody GWTUser gwtUser) {