java - Upload image File to server wich work on php -

i want upload image file mobile phone on android server. have url , must send image file in filed 'file' use robospice robospice-google-http-client. code this:

public class loadfileonserverrequest extends googlehttpclientspicerequest<loadfilemodel> {  hashmap<string, object> postparam;  public loadfileonserverrequest(file file) {     super(loadfilemodel.class);             postparam = new hashmap<>();     postparam.put("file", file);      setretrypolicy(null); }  @override public loadfilemodel loaddatafromnetwork() throws exception {      genericurl genericurl = new genericurl("http://testwb/ajax_scripts/file.php");     httpcontent content = new urlencodedcontent(postparam);     httprequest request = buildpostrequest(genericurl, content);     request.setparser(new jacksonfactory().createjsonobjectparser());     httpresponse response = request.execute();         return response.parseas(getresulttype()); }  private httprequest buildpostrequest(genericurl genericurl, httpcontent content) throws ioexception {     system.setproperty("http.keepalive", "false");     httprequest request = gethttprequestfactory().buildpostrequest(genericurl, content);     customhttpheader(request);     return request; }  private void customhttpheader(httprequest request) {     request.getheaders().setacceptencoding("gzip, deflate");     request.getheaders().setaccept("*/*");     request.getheaders().setcontenttype("multipart/form-data; boundary=----webkitformboundarycito9o2o3nbgvjgm"); } 

but server don't see file. sees request, without file. when send file on url through rest client in browser, receive answer link. wrong? may error in server side ?

this simple example upload file on server may you.

just take @ here

you can make further changes according requirements