java spring URL mapping -

i using maven web application, framework spring.

using netbeans ide , tomcat server.

when run web in netbeans, url in browser is:

http://localhost:8080/mywebsite

with url website cannot read event servlet mapping.

when change url http://localhost:8080/mywebsite/ run good.

what reason case? why website don't auto add character "/" in url?

{update}

config.java

public class config extends webmvcconfigureradapter {

@bean public urlbasedviewresolver setupviewresolver() {     urlbasedviewresolver resolver = new urlbasedviewresolver();     resolver.setprefix("/web-inf/html/");     resolver.setsuffix(".jsp");     resolver.setviewclass(jstlview.class);     return resolver; }  @override public void addresourcehandlers(resourcehandlerregistry registry) {     registry.addresourcehandler("/resources/**").addresourcelocations("/web-inf/resources/*"); }  } 

initializer

@override public void onstartup(servletcontext servletcontext) throws servletexception {     annotationconfigwebapplicationcontext ctx = new annotationconfigwebapplicationcontext();     ctx.register(config.class);     ctx.setservletcontext(servletcontext);     servletregistration.dynamic servlet = servletcontext.addservlet("dispatcher", new dispatcherservlet(ctx));     servlet.addmapping("/");     servlet.setloadonstartup(1); } 

controller

@controller public class mycontroller {  //<editor-fold defaultstate="collapsed" desc="admin"> @requestmapping(value = "/", method = requestmethod.get) public string login(modelmap map) {     return "admin/login"; }} 

if open http://localhost:8080/mywebsite, web app try find index.html file(based on tomcat or http server configuration).

and mapping @requestmapping(value = "/", method = requestmethod.get), apply http://localhost:8080/mywebsite/. if want use controller handle http://localhost:8080/mywebsite, can try use * in mapping value. means, request, if there no specific mapping defined, , default mapping applied.