2

I am trying to get a response from my server using restful services, I get it back in json format, change to a string variable then am trying to change from a string variable to json object, but I am getting an error here is my class and after my class is my stacktrace and then my string variable, the error occurs when i try to convert from string to json object, thanks for your help: 

private class DownloadWebPageTask extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... urls) {
            String response = "";
            for (String url : urls) {
                DefaultHttpClient client = new DefaultHttpClient();
                HttpGet httpGet = new HttpGet(url);
                try {
                    HttpResponse execute = client.execute(httpGet);
                    InputStream content = execute.getEntity().getContent();

                    BufferedReader buffer = new BufferedReader(
                            new InputStreamReader(content));
                    String s = "";
                    while ((s = buffer.readLine()) != null) {
                        response += s;
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            try {
                //JSONObject json = new JSONObject(response);
                JSONObject data = new JSONObject(response).getJSONObject("type");

            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            return response;
        }

11-14 09:53:26.192: W/System.err(560): org.json.JSONException: Value [{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0373889/","label":"Harry Potter und der Orden des Phonix","videoinfo":{"id":"humvideo:0373889","title":"Harry Potter und der Orden des Phonix","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Lord Voldemort ist zuruckgekehrt, doch das Zaubereiministerium tut alles, um diese Tatsache der Geme ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2007-04-11"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0330373/","label":"Harry Potter und der Feuerkelch","videoinfo":{"id":"humvideo:0330373","title":"Harry Potter und der Feuerkelch","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Das grosse Abenteuer beginnt, als der Feuerkelch Harry Potters Namen freigibt und Harry damit Teilne ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2005-11-18"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0304141/","label":"Harry Potter und der Gefangene von Askaban","videoinfo":{"id":"humvideo:0304141","title":"Harry Potter und der Gefangene von Askaban","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Wahrend die abscheuliche Tante Magda uber den Nachthimmel schwebt, kehrt Harry nach Hogwarts zuruck, ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2003-06-04"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0295297/","label":"Harry Potter und die Kammer Desschreckens","videoinfo":{"id":"humvideo:0295297","title":"Harry Potter und die Kammer Desschreckens","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Fliegende Autos, gemeingefahrliche Baume und die Warnung eines mysteriosen Hauselfen - so beginnt fu ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2002-11-15"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0241527/","label":"Harry Potter und der Stein der Weisen","videoinfo":{"id":"humvideo:0241527","title":"Harry Potter und der Stein der Weisen","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"In der zauberhaften Verfilmung J.K. Rowlings Weltbestseller erfahrt Harry Potter an seinem 11. Gebur ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2001-11-16"}}] of type org.json.JSONArray cannot be converted to JSONObject 11-14 09:53:26.232: W/System.err(560): at org.json.JSON.typeMismatch(JSON.java:111) 11-14 09:53:26.242: W/System.err(560): at org.json.JSONObject.(JSONObject.java:158) 11-14 09:53:26.252: W/System.err(560): at org.json.JSONObject.(JSONObject.java:171) 11-14 09:53:26.262: W/System.err(560): at de.vogella.android.asynctask.ReadWebpageAsyncTask$DownloadWebPageTask.doInBackground(ReadWebpageAsyncTask.java:56) 11-14 09:53:26.332: W/System.err(560): at de.vogella.android.asynctask.ReadWebpageAsyncTask$DownloadWebPageTask.doInBackground(ReadWebpageAsyncTask.java:1) 11-14 09:53:26.352: W/System.err(560): at android.os.AsyncTask$2.call(AsyncTask.java:264) 11-14 09:53:26.372: W/System.err(560): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 11-14 09:53:26.382: W/System.err(560): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 11-14 09:53:26.392: W/System.err(560): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 11-14 09:53:26.402: W/System.err(560): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 11-14 09:53:26.412: W/System.err(560): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 11-14 09:53:26.422: W/System.err(560): at java.lang.Thread.run(Thread.java:856) 11-14 09:53:34.635: D/dalvikvm(169): GC_CONCURRENT freed 396K, 7% free 7350K/7879K, paused 21ms+9ms

string variable:

[ { "type": "HumVideoMovingImage",
"videoinfo": { "status": "allowed",
"description": "Lord Voldemort ist zuruckgekehrt, doch das Zaubereiministerium tut alles, um diese Tatsache der Geme ...",
"height": 480, "coverage": "BYU", "date": "2007-04-11", "id": "humvideo:0373889",
"subject": "Harry Potter,magic", "language": ["de"],
"rights": "shared", "title": "Harry Potter und der Orden des Phonix", "runningtime": 7200, "width": 716 }, "location": "http://hummedia.byu.edu/watch/humvideo:0373889/", "label": "Harry Potter und der Orden des Phonix" }, {
"type": "HumVideoMovingImage", "videoinfo": {
"status": "allowed", "description": "Das grosse Abenteuer beginnt, als der Feuerkelch Harry Potters Namen freigibt und Harry damit Teilne ...", "height": 480, "coverage": "BYU", "date": "2005-11-18", "id": "humvideo:0330373", "subject": "Harry Potter,magic",
"language": ["de"], "rights": "shared",
"title": "Harry Potter und der Feuerkelch",
"runningtime": 7200, "width": 716 },
"location": "http://hummedia.byu.edu/watch/humvideo:0330373/",
"label": "Harry Potter und der Feuerkelch" }, { "type": "HumVideoMovingImage", "videoinfo": {
"status": "allowed", "description": "Wahrend die abscheuliche Tante Magda uber den Nachthimmel schwebt, kehrt Harry nach Hogwarts zuruck, ...", "height": 480,
"coverage": "BYU", "date": "2003-06-04",
"id": "humvideo:0304141", "subject": "Harry Potter,magic", "language": ["de"], "rights": "shared", "title": "Harry Potter und der Gefangene von Askaban", "runningtime": 7200, "width": 716
}, "location": "http://hummedia.byu.edu/watch/humvideo:0304141/", "label": "Harry Potter und der Gefangene von Askaban" },
{ "type": "HumVideoMovingImage", "videoinfo": { "status": "allowed", "description": "Fliegende Autos, gemeingefahrliche Baume und die Warnung eines mysteriosen Hauselfen - so beginnt fu ...", "height": 480, "coverage": "BYU", "date": "2002-11-15", "id": "humvideo:0295297", "subject": "Harry Potter,magic",
"language": ["de"], "rights": "shared",
"title": "Harry Potter und die Kammer Desschreckens",
"runningtime": 7200, "width": 716 },
"location": "http://hummedia.byu.edu/watch/humvideo:0295297/",
"label": "Harry Potter und die Kammer Desschreckens" },
{ "type": "HumVideoMovingImage", "videoinfo": { "status": "allowed", "description": "In der zauberhaften Verfilmung J.K. Rowlings Weltbestseller erfahrt Harry Potter an seinem 11. Gebur ...", "height": 480, "coverage": "BYU", "date": "2001-11-16", "id": "humvideo:0241527", "subject": "Harry Potter,magic",
"language": ["de"], "rights": "shared",
"title": "Harry Potter und der Stein der Weisen",
"runningtime": 7200, "width": 716 },
"location": "http://hummedia.byu.edu/watch/humvideo:0241527/",
"label": "Harry Potter und der Stein der Weisen" }

    ]

by trying to use the following code: JSONObject jObject = new JSONObject(response);

I still get an error, here is the stack trace:

11-14 10:03:02.713: W/System.err(622): org.json.JSONException: Value [{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0373889/","label":"Harry Potter und der Orden des Phonix","videoinfo":{"id":"humvideo:0373889","title":"Harry Potter und der Orden des Phonix","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Lord Voldemort ist zuruckgekehrt, doch das Zaubereiministerium tut alles, um diese Tatsache der Geme ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2007-04-11"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0330373/","label":"Harry Potter und der Feuerkelch","videoinfo":{"id":"humvideo:0330373","title":"Harry Potter und der Feuerkelch","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Das grosse Abenteuer beginnt, als der Feuerkelch Harry Potters Namen freigibt und Harry damit Teilne ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2005-11-18"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0304141/","label":"Harry Potter und der Gefangene von Askaban","videoinfo":{"id":"humvideo:0304141","title":"Harry Potter und der Gefangene von Askaban","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Wahrend die abscheuliche Tante Magda uber den Nachthimmel schwebt, kehrt Harry nach Hogwarts zuruck, ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2003-06-04"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0295297/","label":"Harry Potter und die Kammer Desschreckens","videoinfo":{"id":"humvideo:0295297","title":"Harry Potter und die Kammer Desschreckens","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"Fliegende Autos, gemeingefahrliche Baume und die Warnung eines mysteriosen Hauselfen - so beginnt fu ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2002-11-15"}},{"type":"HumVideoMovingImage","location":"http://hummedia.byu.edu/watch/humvideo:0241527/","label":"Harry Potter und der Stein der Weisen","videoinfo":{"id":"humvideo:0241527","title":"Harry Potter und der Stein der Weisen","height":480,"coverage":"BYU","status":"allowed","subject":"Harry Potter,magic","description":"In der zauberhaften Verfilmung J.K. Rowlings Weltbestseller erfahrt Harry Potter an seinem 11. Gebur ...","width":716,"rights":"shared","language":["de"],"runningtime":7200,"date":"2001-11-16"}}] of type org.json.JSONArray cannot be converted to JSONObject 11-14 10:03:02.732: W/System.err(622): at org.json.JSON.typeMismatch(JSON.java:111) 11-14 10:03:02.752: W/System.err(622): at org.json.JSONObject.(JSONObject.java:158) 11-14 10:03:02.762: W/System.err(622): at org.json.JSONObject.(JSONObject.java:171) 11-14 10:03:02.822: W/System.err(622): at de.vogella.android.asynctask.ReadWebpageAsyncTask$DownloadWebPageTask.doInBackground(ReadWebpageAsyncTask.java:56) 11-14 10:03:02.842: W/System.err(622): at de.vogella.android.asynctask.ReadWebpageAsyncTask$DownloadWebPageTask.doInBackground(ReadWebpageAsyncTask.java:1) 11-14 10:03:02.852: W/System.err(622): at android.os.AsyncTask$2.call(AsyncTask.java:264) 11-14 10:03:02.872: W/System.err(622): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 11-14 10:03:02.892: W/System.err(622): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 11-14 10:03:02.902: W/System.err(622): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 11-14 10:03:02.912: W/System.err(622): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 11-14 10:03:02.922: W/System.err(622): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 11-14 10:03:02.942: W/System.err(622): at java.lang.Thread.run(Thread.java:856)

thank you.

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2 Answers 2

Reset to default
5

You simple have to use below code 

import org.json.JSONObject;

JSONObject jObject = new JSONObject(response);

For rest you can process in the same way

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3 Comments

I'm sorry I forgot to mention I do have the import: "import org.json.JSONObject; "
I tried the above solution but i still get an error, I have updated my question with new stack trace. thank you.
could you please try something like JSONArray dataArray = new JSONArray(response); JSONObject menuObject = dataArray.getJSONObject(0); menuObject.getString("type")
2

The JSON returned from the server is an Array object, and the stack trace clearly states that. Try using a org.json.JSONArray in place of an org.json.JSONObject:

org.json.JSONArray jsonArray = new org.json.JSONArray(response);
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1 Comment

look in your stack trace for this line: type org.json.JSONArray cannot be converted to JSONObject 11-14 10:03:02.732: W/System.err(622): at org.json.JSON.typeMismatch(JSON.java:111)

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