JSON-Parse-Fehler in android :Fehler beim Parsen der Daten org.json.JSONException: End of input at character 0 of

Meine URL zurück

       {"success":0,"message":"No books found"}

Habe ich, um den Erfolg Wert!

Habe ich versucht mit

      List<NameValuePair> param = new ArrayList<NameValuePair>(); 
      param.add(new BasicNameValuePair("format", "json"));
      JSONObject jsons = jParser.makeHttpRequest(updated_time, "GET",param); 
       try { 
         success = jsons.getString(TAG_SUCCESS); 
         System.err.println("success length is::"+success); 
       } catch (JSONException e2) { 
       e2.printStackTrace(); 
       }

Mein parser ist

public class JSONParser {

static InputStream is = null;
static JSONObject jObj = null;
static String json = "";

//constructor
public JSONParser() {

}

//function get json from url
//by making HTTP POST or GET method
public JSONObject makeHttpRequest(String url, String method,
        List<NameValuePair> params) {

    //Making HTTP request
    try {

        //check for request method
        if(method == "POST"){
            //request method is POST
            //defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity(params));

            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();

        }else if(method == "GET"){
            //request method is GET
            DefaultHttpClient httpClient = new DefaultHttpClient();
            String paramString = URLEncodedUtils.format(params, "utf-8");
            url += "?" + paramString;
            HttpGet httpGet = new HttpGet(url);

            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        }           

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        json = sb.toString();
    } catch (Exception e) {
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    //try parse the string to a JSON object
    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

    //return JSON String
    return jObj;

}

}

Ich bin immer Fehler wie

 Error parsing data org.json.JSONException: End of input at character 0 of

Wie kann ich dieses Problem beheben?

jObj = new JSONObject(json); jobj.getInt("Erfolg"); zurückgegeben wird int-Wert in Erfolg
können Sie mir Ihre json-Ergebnis-url ?
How can i resolve this issue? das Problem ?
Was ist die Ausgabe?
bitte überprüfen Sie meine Frage bearbeitet
innerhalb der while-Schleife entfernen des "\n" ersetzen oder das sb.append(line);
was Sie senden zum server?warum spielst du nicht POSTEN..und dein Erfolg Wert ist integer

InformationsquelleAutor | 2013-01-23

android json

versuchen, die url-Folge in die Zeichenfolge und dann versuchen, diese

JSONObject jsonresult = new JSONObject(result);
String success = jsonresult.getString("success");
String message = jsonresult.getString("message");

InformationsquelleAutor DevfaR

public class Servicehandler {

public String servicehandler(String Url) {
    InputStream is = null;
    String result = null;

    try {


        //StringEntity entity1 = new StringEntity(Url, "UTF-8");
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httpget = new HttpPost(Url);
        System.out.println(Url);
        HttpResponse response = httpclient.execute(httpget);

        HttpEntity entity = response.getEntity();

        is = entity.getContent();
        System.out.println(is.toString());

    } catch (Exception e) {
        Log.e("log_tag", "Error in http connection" + e.toString());
    }

    try {

        //Read the response and convert into string

        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);

        StringBuilder sb = new StringBuilder();
        sb.append(reader.readLine() + "\n");

        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        result = sb.toString();
        Log.e("log_tag", result);
    } catch (Exception e) {
        Log.e("log_tag", "Error in http connection" + e.toString());
    }

    return result;

}
public String servicehandler1(String url, JSONObject contactsync) {
    InputStream is = null;
    String result = null;

    try {

        //image upload

        StringEntity entity1 = new StringEntity(contactsync.toString(),
                "UTF-8");
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httpget = new HttpPost(url);
        System.out.println(contactsync);
        httpget.setEntity(entity1);
        httpget.setHeader("Accept", "application/json");
        httpget.setHeader("Content-type", "application/json");
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();
        is = entity.getContent();
        System.out.println(is.toString());

    } catch (Exception e) {
        Log.e("log_tag", "Error in http connection" + e.toString());
    }

    try {
        BufferedReader reader = new BufferedReader(
                new InputStreamReader(is, "iso-8859-1"), 8);

        StringBuilder sb = new StringBuilder();
        sb.append(reader.readLine() + "\n");

        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        result = sb.toString();
        Log.e("log_tag", result);
    } catch (Exception e) {
        Log.e("log_tag", "Error in http connection" + e.toString());
    }
    return result;

}



}

InformationsquelleAutor aakash

probieren Sie folgenden code

JSONObject j = new JSONObject(result);  
String success_value = j.getString("success");
String message_value = j.getString("message");

und verwenden Sie POST-Methode..

InformationsquelleAutor

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