unable to render index or mobile page with spring mobile -

i able project run fine until brought in spring-mobile. strings return in browser spring-mobile method returning:

@controller public class devicedetection {      private logger logger = loggerfactory.getlogger(devicedetection.class);      @requestmapping(value="/index")     public string detectdevice(device device) {          if (device.isnormal()) {             system.out.println("inside isnormal()");             return "index";         } else if (device.ismobile()) {             system.out.println("inside ismobile()");             return "mobilepage";         } else if (device.istablet()) {             return "mobilepage";         }         return "index";     }  } 

so decided needed internalresourceviewresolver gives me following error:

error creating bean name 'viewresolver' defined in class path resource           [org/springframework/boot/autoconfigure/web/webmvcautoconfiguration$webmvcautocon  figurationadapter.class]: initialization of bean failed; nested exception    org.springframework.beans.factory.beancreationexception: error creating bean  name 'org.springframework.boot.autoconfigure.mobile 

and

   devicedelegatingviewresolverautoconfiguration$devicedelegatingviewresolverconfigur ation$internalresourceviewresolverdelegateconfiguration.viewresolver; nested    exception  org.springframework.beans.factory.nouniquebeandefinitionexception: no  qualifying bean of type  [org.springframework.web.servlet.view.internalresourceviewresolver]  defined: expected single matching bean found 2:  getviewresolver,defaultviewresolver 

resolver class

@configuration public class mvcconfiguration extends webmvcconfigureradapter {      @bean     public viewresolver getviewresolver() {         internalresourceviewresolver resolver = new internalresourceviewresolver();         resolver.setprefix("/web-inf/");         resolver.setsuffix(".html");         return resolver;     }      @override     public void configuredefaultservlethandling(             defaultservlethandlerconfigurer configurer) {         configurer.enable();     } } 

main class

@springbootapplication public class stidhamfinancialapplication extends springbootservletinitializer {      public static void main(string[] args) throws unknownhostexception {         springapplication app = new springapplication(stidhamfinancialapplication.class);          environment env = app.run(args).getenvironment();        system.out.println(string.format("access urls:\n----------------------------------------------------------\n\t" +                 "local: \t\thttp://127.0.0.1:%1s\n\t" +                 "external: \thttp://%2s:%3s\n----------------------------------------------------------",             env.getproperty("server.port"),             inetaddress.getlocalhost().gethostaddress(),             env.getproperty("server.port")));     }      @override     protected springapplicationbuilder configure(springapplicationbuilder builder) {         return builder.sources(stidhamfinancialapplication.class);     } } 

project structure:

i running on tomcat 8...

--------update 1--------------- deleted configuration package , add @responebody detectdevice method so:

//if remove @responsebody complains of circular view path [index]     @responsebody renders string , not view  @requestmapping(value="/index") public @responsebody string detectdevice(device device) {       if (device.isnormal()) {         system.out.println("inside isnormal()");         return "index";     } else if (device.ismobile()) {         system.out.println("inside ismobile()");         return "mobilepage";     } else if (device.istablet()) {         return "mobilepage";     }     return "index"; } 

only string index or mobilepage render in browser. if delete @responsebody project gives error saying following:

2016-05-29 08:55:03.682 error 8230 --- [nio-8080-exec-1]  o.s.boot.context.web.errorpagefilter     : forwarding error page  request [/index.html] due exception [circular view path  [index]: dispatch current handler url [/index] again.  check viewresolver setup! (hint: may result of  unspecified view, due default view name generation.)] 

if remove /index method ignored , spring-boot maps index file , works again need mobile site work.

-------------------update 2-------------------

ok added thymeleaf , index page rendering again. better devicedetection working once project looks mobilepage following error:

error resolving template "mobile/index", template might not exist or might not accessible of configured template resolvers 

i had add follow ing @configuration project work. spring-boots defaultviewresolver causing me many issues. here project structure now:

i updated project on git too.

first needed use thymeleaf , create viewresolver. spring-boots defaultviewresolver causing me issues:

@configuration public class webconfiguration extends webmvcautoconfiguration.webmvcautoconfigurationadapter {      @override     public void configuredefaultservlethandling(defaultservlethandlerconfigurer configurer) {         configurer.enable();     }      @bean     public dispatcherservlet dispatcherservlet(){         dispatcherservlet dispatcherservlet = new dispatcherservlet();          dispatcherservlet.setthrowexceptionifnohandlerfound(true);          return dispatcherservlet;     }      @bean     public servletcontexttemplateresolver templateresolver() {         servletcontexttemplateresolver resolver = new servletcontexttemplateresolver();         resolver.setprefix("/web-inf/");         resolver.setsuffix(".html");         resolver.settemplatemode("html5");         resolver.setorder(1);         return resolver;     }  } 

since using thymeleaf needed bindingresult , few other things. implemented springs mobile device interface detect device.

@controller public class formcontroller {      @requestmapping(value="/", method= requestmethod.get)     public string contactform(@valid @modelattribute("person") contact contact, bindingresult bindingresult,                               httpservletrequest request, model model, device device) throws ioexception {          if(bindingresult.haserrors()){             system.out.println("there error "+bindingresult);             return "error";         }          model.addattribute("contact", new contact());          if(device.isnormal()){             system.out.println("i normal");             return "index";         } else if(device.ismobile()){             system.out.println("i mobile");             return "mobilepage";         } else if (device.istablet()){             system.out.println("i tablet");             return "mobilepage";         }          return "index";     } 

now needed put different views in correct directories so:

that , working perfectly.

here form created use implement thymeleaf:

<!-- contact form --> <form action="#" th:action="@{/contact}" th:object="${contact}" method="post" class="contact-form clear-fix">  <div class="clear-fix">      <ul class="list-0 clear-fix">         <!-- name -->     <li>     <div class="block field-box">      <label for="contact-form-name" class="text-color-black">your name</label>     <input type="text" th:field="*{name}" class="contact nomarr col-md-6 text-color-black" id="contact-form-name" />     </div>     </li> <!-- /name --> <!-- e-mail address --> <li> <div class="block field-box">  <label for="contact-form-mail" class="text-color-black">your e-mail</label> <input type="text" th:field="*{email}" class="contact nomarr col-md-6 text-color-black" id="contact-form-mail" /> </div> </li>  <!-- /e-mail address --> <!-- website url --> <li> <div class="block field-box"> <label for="contact-form-subject" class="text-color-black">subject</label>     <input type="text" th:field="*{subject}" class="contact nomarr col-md-6 text-color-black" id="contact-form-subject" /> </div>     </li> <!-- /website url -->     <!-- message -->     <li> <div class="block field-box "> <label for="contact-form-message" class="text-color-black">your message</label> <textarea name="comment" class="contact col-md-12 text-color-black" th:field="*{message}" id="contact-form-message"></textarea> </div> </li> <!-- /message --> <!-- submit button --> <li> <div class="block field-box field-box-button text-color-black">     <input type="submit" id="contact-form-submit" name="contact-form-submit" class="button text-color-black" value="submit"/> </div> </li>  <!-- /submit button -->  </ul>  </div>  </form>