I'm new in gwt and new to using Firebug. MY gwt version is 2.0.0. using eclipse and WAMP. my IIS is stoped to run WAMP apache. I run my program on firefox
I have valid json result from tesdb3.php located in "http://localhost/phpmyadmin/tesdb3/datauser.php"

{"item": [{"kode":"002","nama":"bambang gentolet"},
          {"kode":"012","nama":"Algiz"}]}

Ben xml eklemek

<inherits name='com.google.gwt.json.JSON'/>
<inherits name="com.google.gwt.http.HTTP" />

sonra ben bu kod ile GWT onu göstermeye çalışacağım.

public class Tesdb3 implements EntryPoint { 

String url= "http://localhost/phpmyadmin/tesdb3/datauser.php";

public void LoadData() throws RequestException{             

    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url));

    builder.sendRequest(null, new RequestCallback(){
        @Override
        public void onError(Request request, Throwable exception) {
            Window.alert("error " + exception);
        }
        public void onResponseReceived(Request request,
                Response response) {
              if (200 == response.getStatusCode()) {
                  Window.alert("ok -" + response.getText() + "-" + response.getStatusCode());
              } else {
                  Window.alert("error2 -" + response.getText()+ response.getStatusText() + "-" + response.getStatusCode());
              }         
        }
    });
}

public void onModuleLoad() {        
    try {
        LoadData();
    } catch (RequestException e) {
        e.printStackTrace();
    }       
}
}

I run it in development mode. not hosted mode.
My code didn't show any error. But the result in window alert is "error2 --OK-0".

result Net from firebug is 7 request:
get Tesdb3.html?gwt.codeserv = 200ok
get Tesdb3.css = 200ok
get tesdb3.nocache.js = 200ok
get hosted.html?tesdb3 = aborted
get standard.css = 304 not modified
get hosted.html?tesdb3 = 403 not modified
get datauser.php = 200ok

Benim soru:

Neden yanıt durum kodu 0 ve yanıt durumu metni 'Tamam' olduğunu? json veya Java kodunda hata yoktu.

Neden response.getText boş? Ben herhangi bir json sonuç alamayan neden hatta tek bir karakter?

Lütfen bana yardımcı olun. Zaten 2 ay ben çok kaynak türü ile bu çözmeye çalışın ve ben tek bir sonuç alınamıyor.

Bu benim datauser.php
olduğunu

  header('Content-type: application/json; charset=UTF-8');
  header('Cache-Control: no-cache');
  header('Pragma: no-cache');

  $link = mysql_connect("localhost", "root", "")
        or die("Could not connect : " . mysql_error());
  mysql_select_db("tesku1") or die("Could not select database" . mysql_error());

  $query = "select * from tabel1";
  $result = mysql_query($query);

  $jumlah_data = mysql_num_rows($result);

  echo '[';

  for ($i=0; $i<=count($result); $i++){
      $row = mysql_fetch_array($result);

      echo '{';
      echo "\"kode\":\"$row[kode]\",";
      echo "\"nama\":\"$row[nama]\"";

      if ($i==count($result)){
       echo '}';
      }else
      echo '},';
  }
  echo ']';

  mysql_free_result($result);