Android Web service, incorrect response -

i need make request url /controller/action. not getting expected response following code:

public class mainactivity extends activity {      list<string> responselist;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          autocompletetextview auto1 = (autocompletetextview) findviewbyid(r.id.autocompletetextview1);            arrayadapter<string> adapter = new arrayadapter<string>(this,                 android.r.layout.simple_expandable_list_item_2, responselist);         auto1.setadapter(adapter);      }      private void handleresponse(jsonobject serverresponse) {         int success = 0;         try {             success = serverresponse.getint(responce.tag_success);             if (success == 1) {                 progress.dismiss();                 //after login want store user's id shared preferences                 /*sharedpreferences sharedpreferences = preferencemanager.getdefaultsharedpreferences(getapplicationcontext());                 sharedpreferences.editor editor = sharedpreferences.edit();                 editor.putstring("cust_id", serverresponse.getstring("customerid"));                 editor.commit();*/                  toast.maketext(mainactivity.this, serverresponse.getstring((responce.tag_message)), toast.length_long).show();              } else {                 progress.dismiss();                 //util.log(tag, serverresponse.getstring(responce.tag_error));                 toast.maketext(mainactivity.this, serverresponse.getstring(responce.tag_message), toast.length_long).show();             }         } catch (jsonexception e) {             // util.log(tag, e.getmessage());         }      }      @override     public void oncomplete(jsonobject serverresponse, int response_identifier_flag) throws jsonexception {         switch (response_identifier_flag) {             case 1:                 handleresponse(serverresponse);                 break;             default:         }      }  }