java - Not getting response of a webservice in android code -

i working on application in have developed ios code making webservice call , giving me response successfully,the same webservice call when trying call in android not working not giving me response,i posting both code,can me figure it?

ios code

  nsurl *url = [nsurl urlwithstring:[nsstring stringwithformat:@"%@/%@",k_server_base_address,service_name]];     nsurlsessionconfiguration *config = [nsurlsessionconfiguration defaultsessionconfiguration];     nsurlsession *session = [nsurlsession sessionwithconfiguration:config];      // 2     nsmutableurlrequest *request = [[nsmutableurlrequest alloc] initwithurl:url];     request.httpmethod = @"post";      [request setvalue:[nsstring stringwithformat:@"%@",k_content_type] forhttpheaderfield:@"content-type"];      // 3     nsmutabledictionary *dictionary = [[nsmutabledictionary alloc] init];     [dictionary setobject:[nsstring stringwithformat:@"%@",k_user_name] forkey:@"apiusername"];     [dictionary setobject:[nsstring stringwithformat:@"%@",k_password] forkey:@"password"];      nslog(@"%@",dictionary);     nserror *error = nil;     nsdata *data_prm = [nsjsonserialization datawithjsonobject:dictionary                                                        options:kniloptions error:&error];      nslog(@"%@",[[nsstring alloc] initwithdata:data_prm encoding:nsutf8stringencoding]);     if (!error) {         // 4         nsurlsessionuploadtask *uploadtask = [session uploadtaskwithrequest:request                                                                    fromdata:data_prm completionhandler:^(nsdata *data,nsurlresponse *response,nserror *error) {                                                                        // handle response here..                                                                         nslog(@"this data : %@",data); 

android code

public class getcontestants extends asynctask<void, void, void> {      stringentity se;         @override     protected void onpreexecute() {         super.onpreexecute();         pdialog = new progressdialog(startactivity.this);         pdialog.setmessage("loading...");         pdialog.setcancelable(false);         pdialog.show();         // statelist.clear();       }      @override     protected void doinbackground(void... params) {          httpclient httpclient = new defaulthttpclient();           httppost httppost = new httppost("http://www.fansplay.com/wsfptb20/fbs.svc/getcontestants");           string json = "";           try {           // 3. build jsonobject           jsonobject jsonobject = new jsonobject();           jsonobject.accumulate("apiusername", "afbk8@dl4ejmd6");           jsonobject.accumulate("country","8gb4he1c-efsd-4l17-vy2d-a27oc8c52f6m");                    // 4. convert jsonobject json string           json = jsonobject.tostring();            // ** alternative way convert person object json string usin jackson lib            // objectmapper mapper = new objectmapper();           // json = mapper.writevalueasstring(person);             // 5. set json stringentity               se = new stringentity(json);         } catch (unsupportedencodingexception e1) {             // todo auto-generated catch block             e1.printstacktrace();         } catch (jsonexception e) {             // todo auto-generated catch block             e.printstacktrace();         }            // 6. set httppost entity           httppost.setentity(se);            // 7. set headers inform server type of content              httppost.setheader("accept", "application/json");           httppost.setheader("content-type", "application/json");          try {               httpresponse httpresponse = httpclient.execute(httppost);               // 9. receive response inputstream              inputstream = httpresponse.getentity().getcontent(); 

in above codes "ios code" working fine , "android code" not working. can please me?

try snippet of code may helpful

public class jsonparser {     static inputstream = null;     static jsonobject jobj = null;     static string json = "";     string url="http://www.fansplay.com/wsfptb20/fbs.svc/getcontestants";      public jsonparser(){      }      public jsonobject makehttprequest(string url){      jsonobject jo = null;     jo = new jsonobject();      try {          jo.accumulate("apiusername", "afbk8@dl4ejmd6");       jo.accumulate("country","8gb4he1c-efsd-4l17-vy2d-a27oc8c52f6m");     } catch (jsonexception e) {         // todo auto-generated catch block         e.printstacktrace();     }     jsonobject job=new jsonobject();     try {         job.accumulate("aloha", jo);     } catch (jsonexception e2) {         // todo auto-generated catch block         e2.printstacktrace();     }      log.e("url", job.tostring());         defaulthttpclient httpclient = new defaulthttpclient();         httppost httppost = new httppost(this.url);         try {             httppost.setentity(new stringentity(job.tostring(), "utf-    8"));             //               httppost.tostring();         //              log.e("url", httppost.tostring());         } catch (unsupportedencodingexception e1) {             // todo auto-generated catch block             e1.printstacktrace();         }         try {             httpresponse httpresponse = httpclient.execute(httppost);             httpentity httpentity = httpresponse.getentity();             = httpentity.getcontent();          } catch (clientprotocolexception e) {             // todo auto-generated catch block             e.printstacktrace();         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }          try {             bufferedreader reader = new bufferedreader(new   inputstreamreader(is,"iso-8859-1"),8);             stringbuilder sb = new stringbuilder();             string line = null;             try {                 while((line = reader.readline())!=null){                     sb.append(line+"\n");                     }                 is.close();                 json = sb.tostring();                 log.e("url", json);                 try {                     jobj = new jsonobject(json);                 } catch (jsonexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 }             } catch (ioexception e) {                 // todo auto-generated catch block                 e.printstacktrace();             }          } catch (unsupportedencodingexception e) {             // todo auto-generated catch block             e.printstacktrace();         }      return jobj;       }