spring mvc - Handling Multipart request that is not an Action request? -

i've been thinking if possible handle multipart request not action request. there reason why seems impossible me :

only actionrequest implements getfile() kind of methods. can't find easy way how file out of request other action request

what if don't use html form upload file , don't want view rendered after action request - render phase happens after action phase.

what if want create post request (with file(s)) ajax , use @resourcemapping handler. how out of resourcerequest ?

thank thoughts.

this "pattern" afaik best way of handling multipart requests

action request view layer goes method:

@actionmapping(params = "javax.portlet.action=sample") public void response(multipartactionrequest request, actionresponse response) {     response.setrenderparameter("javax.portlet.action", "success");     list<multipartfile> filelist = request.getfiles("file"); } 

render phase follows :

@requestmapping(params = "javax.portlet.action=success") public modelandview process(renderrequest request, model model) throws ioexception {     map map = new hashmap();     map.put("test", new integer(1));     return new modelandview("someview", map); } 

you create "bean" view :

@component("someview") public class someview extends abstractview {     private logger logger = logger.getlogger(someview.class);      @override     protected void rendermergedoutputmodel(map map, httpservletrequest request, httpservletresponse response)             throws exception {     logger.info("resolving ajax request view - " + map);     jsonobject jsonobj = new jsonobject(map);     logger.info("content type = " + getcontenttype());     response.setcontenttype("application/json");     response.setcharacterencoding("utf-8");     response.getwriter().write(jsonobj.tostring());     response.getwriter().flush();     } } 

you add beannameviewresolver servlet/portlet context:

<bean class="org.springframework.web.servlet.view.beannameviewresolver" p:order="1" />