How to add a Filter with WebMvcConfigurerAdapter in Spring? -

with webapplicationinitializer, can add filter servletcontext within onstartup() method.

how add filter webmvcconfigureradapter? have use xml?

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to others understand spring web configuration more easily, draw following illustration.

now need first understand rational behind spring web configuration. , pick config class inherit , method override below.

it's less painful remember many things.

and article on spring web initialization:

http://www.kubrynski.com/2014/01/understanding-spring-web-initialization.html

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based on tunaki's reply, checked abstractdispatcherservletinitializer. filter registration happens in following code:

even override green getservletfilters() method, still cannot access dyanmic result of registerservletfilter(). how can configure filter addmappingforurlpatterns()?

it seems have to override whole registerdispatcherservlet() method.

webmvcconfigurer interface used customize java-based configuration spring mvc enabled via @enablewebmvc. webmvcconfigureradapter adapter providing default empty methods interface.

it not configure dispatcherservlet, filters used by. such, can't use webmvcconfigurer configure servlet filters.

to configure filters, can inherit abstractdispatcherservletinitializer , override getservletfilters():

public class mywebappinitializer extends abstractdispatcherservletinitializer {      @override     protected filter[] getservletfilters() {         return new filter[] { new characterencodingfilter() };     }  } 

if want further configure filter, have override onstartup instead:

@override public void onstartup(servletcontext servletcontext) throws servletexception {     super.onstartup(servletcontext);     servletcontext.addfilter("name", characterencodingfilter.class)                   .addmappingforurlpatterns(null, false, "/*"); }