web services - how to upload a file using multipart form data in android -

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how use multipart-form data(@formdataparamdata) uploading file in android. trying upload image file android end multipart form data. 

here server script found @ server side: public image upload(@formdataparam("image") inputstream istream,             @formdataparam("image") formdatabodypart body,             @formdataparam("eventid") long eventid,             @formdataparam("eventdescription") string eventdescription)             throws imagewebserviceexception { // ...... }  here client code tried uploading in android...  client client = new client(); client.addfilter(new httpbasicauthfilter("user123", "******")); webresource webresource = client.resource(url); clientresponse response; formdatamultipart form = new formdatamultipart(); file file = new file("f:/android.png"); form.field("eventid", "1"); form.field("eventdescription", "password"); form.field("image", file.getname()); form.bodypart(new filedatabodypart("image", file, mediatype.valueof("image/png"))); response  = webresource.type(mediatype.multipart_form_data).post(clientresponse.class, form);  above code im getting 415 status code error unsupported media type.   thanks. 

 try  httpclient httpclient = new defaulthttpclient();     httpcontext localcontext = new basichttpcontext();     httppost httppost = new httppost(url);      try {          multipartentity entity = new multipartentity(httpmultipartmode.browser_compatible);          (int index = 0; index < namevaluepairs.size(); index++)          {             entity.addpart(namevaluepairs.get(index).getname(),                         new filebody(new file(namevaluepairs.get(index)                                 .getvalue())));         }          httppost.setentity(entity);         httpresponse response = httpclient.execute(httppost, localcontext);         httpentity resentity = response.getentity();         if (resentity != null)          {             page = entityutils.tostring(resentity);             system.out.println("page :" + page);         }     } catch (ioexception e) {         e.printstacktrace();     }

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