java - How to handle maximum file size Exception in Spring Boot? -

i using spring boot v1.2.5 creating rest application. while uploading images, have check maximum file size , provided property :

multipart.maxfilesize= 128kb 

in application.properties. facility provided spring boot itself. check working properly. question is, how handle exception , return message user can understand ?

update 1----------

i wrote method within controller, intend handle multipartexception, using @exceptionhandler. not seem work.

this code :

@exceptionhandler(multipartexception.class) @responsestatus(value = httpstatus.payload_too_large) public applicationerrordto handlemultipartexception(multipartexception exception){     applicationerrordto applicationerrordto =  new applicationerrordto();     applicationerrordto.setmessage("file size exceeded");     logger.error("file size exceeded",exception);     return applicationerrordto; } 

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

after @luboskrnac pointed out, have managed come solution. can use responseentityexceptionhandler here handle particular case. believe, have used defaulthandlerexceptionresolver, responseentityexceptionhandler allow return responseentity, opposed former, methods of return modelandview. have not tried though.

this final code i'm using handle multipartexception :

@controlleradvice public class customresponseentityexceptionhandler extends responseentityexceptionhandler {  private static final logger logger = logger.getlogger(customresponseentityexceptionhandler.class);  @exceptionhandler(multipartexception.class) @responsestatus(value = httpstatus.payload_too_large) @responsebody public applicationerrordto handlemultipartexception(multipartexception exception){     applicationerrordto applicationerrordto =  new applicationerrordto();     applicationerrordto.setmessage("file size exceeded");     logger.error("file size exceeded",exception);     return applicationerrordto; } } 

i using swagger developing/documenting rest apis. response upon uploading file exceeds size. thanks.

spring boot docs says:

you can use regular spring mvc features @exceptionhandler methods , @controlleradvice. errorcontroller pick unhandled exceptions.

as multipartexception seem hapen before @controller/@exceptionhandler/@controlleradvice features comes play, should use errorcontroller handle it.

btw, found thread in meantime. may want take look.