create Json Object from String Android

Question

I tried to get an answer from server and conver it to JSONObject. At Now I have this code

private JSONObject sendData(ArrayList<NameValuePair> data, String actionname)

{

    // 1) Connect via HTTP. 2) Encode data. 3) Send data.
    try

    {
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new      
        HttpPost(actionname);
        httppost.setEntity(new UrlEncodedFormEntity(data));
        HttpResponse response = httpclient.execute(httppost);
    //   Log.i("postData", response.getStatusLine().toString());
        InputStream is = response.getEntity().getContent();
        String result = convertStreamToString(is);

     //   JSONArray jArr = new JSONArray (result);
       // int eventID = jArr.getJSONObject(0).getInt("eventID");

        JSONObject jObject = new JSONObject(result);
        return jObject;

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

    return null;  

}

in result string variable I have this

{"status":{"code":404,"text":"Not Found"},"content":"User authentication failure"}

But on the string of code JSONObject jObject = new JSONObject(result); - It go to the return null; =(( I tried to create JSONArray but it return me an extention that I can create JSONARRAY from JSONObject.

you must have error above line JSONObject jObject = new JSONObject(result); jsut print the result in log and check.......... — Dheeresh Singh
– Dheeresh Singh, Commented Jun 12, 2012 at 11:58

Chandra · Accepted Answer · 2012-06-12 12:22:11Z

1

From result you can create JSONArray as follows:

JSONArray finalResult = new JSONArray(new JSONTokener(result));

Once you have JSONArray, you can loop through to get the details, something like below:

for (int i = 0; i < finalResult.length(); i++) {
    JSONObject message = finalResult.getJSONObject(i);
    String content= message.getString("content");
    ...
    ...
}

answered Jun 12, 2012 at 12:22

Chandra

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1 Comment

nabiullinas Over a year ago

org.json.JSONException: Value {"content":" ","status":{"text":"Not Found","code":404}} of type org.json.JSONObject cannot be converted to JSONArray - took this

nabiullinas · Accepted Answer · 2012-06-12 13:18:31Z

0

I solved the problem, but I don't understand why it so. May be I am not so good in OOP. So I create JSONObject jObject as a property of class JSONHandler, that have sendData method. And it became work. I will be happy if somebode explain me why it so.

answered Jun 12, 2012 at 13:18

nabiullinas

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