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 ie /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 ie / 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