Receiving 404 for RestControllers in spring - rest

Question

I am new to Spring MVC and trying to build a basic hello world example Using AngularJS and SpringMVC (Uisng Maven and Eclipse).
After going through some tutorials on internet I have done following things
Web MVC Configurations
#Configuration
#EnableWebMvc
public class WebMvcConfig extends WebMvcConfigurerAdapter {
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/webjars/**").addResourceLocations("/webjars/")
.resourceChain(false)
.addResolver(new WebJarsResourceResolver())
.addResolver(new PathResourceResolver());
}
}
Servlet Initializer
public class SampleInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
#Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { WebMvcConfig .class };
}
#Override
protected Class<?>[] getServletConfigClasses() {
return null;
}
#Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
#Override
protected Filter[] getServletFilters() {
Filter [] singleton = { new CORSFilter() };
return singleton;
}
}
CORS Filter
public class CORSFilter implements Filter {
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) res;
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with, Content-Type");
chain.doFilter(req, res);
}
public void init(FilterConfig filterConfig) {}
public void destroy() {}
}
SampleController :
#RestController
public class SampleController {
#RequestMapping(path = "/sample", method = RequestMethod.GET)
public List<String> listUsers() {
List<String> result = new ArrayList<>();
result.add("user1");
return result;
}
}
Webapp structure
app.js [Routing using route provider - code Snippet]
angular
.module('app', ['ngRoute', 'ngCookies' ,'ngTable'])
.config(config)
.run(run);
config.$inject = ['$routeProvider', '$locationProvider'];
function config($routeProvider, $locationProvider) {
$routeProvider
.when('/', {
controller: 'HomeController',
templateUrl: 'home/home.view.html',
controllerAs: 'vm'
})
.when('/login', {
controller: 'LoginController',
templateUrl: 'login/login.view.html',
controllerAs: 'vm'
})
Tomcat Settings :
Since there is no WEB-INF/web.xml , I have removed it from
tomcat-8\conf\context.xml
<!-- Default set of monitored resources. If one of these changes, the-->
<!-- web application will be reloaded.-->
<!--<WatchedResource>WEB-INF/web.xml</WatchedResource>-->
<WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
In tomcat-8\conf\web.xml I see that index.html has been mentioned as Welcome file
When I deploy my application to tomcat , its able to display index.html and due to my routing code , its able to route to login.html . But when I am trying to access the rest service , it shows 404 HTTP Status .
Is there some other setting which I need to maintain somewhere ?
I have re-checked my RestService code and it seems to be correct to me. Also I have checked the tomcat log and it doesn't shows any error either.
Also If possible , can you please point me to a good step by step tutorial of using AngularJS with Spring based Rest Services (Using maven )