Using Spring Mvc WebApplicationInitializer, But No mapping found for HTTP request

Question

I am setup a sample Code base using Spring MVC in Eclipse and JBoss 6.2.

But I get '404' with http://localhost:8080/rest/simple/main

Jboss log as below:

2015-07-29 11:51:27,356 ERROR [controller.simpleController] (http-/0.0.0.0:8080-1) get request

2015-07-29 11:51:27,391 WARN [org.springframework.web.servlet.PageNotFound] (http-/0.0.0.0:8080-1) No mapping found for HTTP request with URI [/rest/WEB-INF/views/main.jsp] in DispatcherServlet with name 'dispatcher'

Directory :

>rest-server-simple
 > -src
  > -main
     -java
      -config
         -InitConfig.java
         -ServletConfig.java
      -controller
         -simpleController.java
  > -webapp
   > -WEB-INF
       -jboss-web.xml
       >views
        -main.jsp

InitConfig:

public class InitConfig implements WebApplicationInitializer {
  @Override
  public void onStartup(ServletContext servletContext) throws ServletException {
  AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
  ctx.register(ServletConfig.class); 
  ServletRegistration.Dynamic registration = servletContext.addServlet("dispatcher",new DispatcherServlet(ctx));
  registration.setLoadOnStartup(1);
  registration.addMapping("/*");  }}

ServletConfig:

@Configuration
@EnableWebMvc  
@ComponentScan(basePackages ="controller")
public class ServletConfig {
  @Bean
  public InternalResourceViewResolver internalResourceViewResolver() {  
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();  
    viewResolver.setPrefix("/WEB-INF/views/");  
    viewResolver.setSuffix(".jsp"); 
    return viewResolver;  
  }
}

jboss-web.xml:

<?xml version="1.0" encoding="UTF-8"?>  
<jboss-web>  
    <context-root>/rest</context-root>  
</jboss-web>

simpleController:

@Controller
@RequestMapping(value = "/simple")
public class simpleController {

  private static final Logger logger = LoggerFactory.getLogger(simpleController.class);
  @RequestMapping(value = "/main", method = RequestMethod.GET)
  public String hello(){
    logger.error("get request");
    return "main";
  }
}

Answer 1

registration.addMapping("/*");

Change it to

registration.addMapping("/");

There is a difference between /* and / .
/* indicates that every request will be handled by DispatcherServlet, in this case retrieval of a jsp or anything like .../abc.xyz etc will also be forwarded to Dispatcher, so when controller requests for a view it actually looks for RequestMapping mapped for /WEB-INF/views/main.jsp but

/ tells container that only those requests that do not have pathinfo i.e /rest/simple/main will be handled by DispatcherServlet.

UPDATE#1

Hmm.. What I have found that jboss AS 7 doesn't like overriding default servlet i.e. / without web.xml and hence you are still getting 404 and not even getting anything on the logger, Reason being simple is that Dispatcher is never mapped to any url. If you want to check that just add following after addMapping("/*");

 System.out.println("registration.getMappings() = " + registration.getMappings());

It works fine with Tomcat >= 7.0.15 or WildFly have checked on both.

To make it work on JBoss7 there are few options:
1. Change DispatcherServlet mapping from / to *.htm or something except DefaultServlet Mapping.
2. Switch your Configuration to web.xml. You will have to initialize DispatcherServlet there and pass Annotated class as `contextConfigLocation. Check here for REF