Error when converting string to JSON array

Question

I got this error message in android LogCat

04-24 21:14:02.603: W/System.err(831): org.json.JSONException: Value {"id":"602414132","first_name":"Adham","username":"adham.enaya","locale":"en_GB","link":"http:\/\/www.facebook.com\/adham.enaya","name":"Adham Enaya","last_name":"Enaya","gender":"male"} of type org.json.JSONObject cannot be converted to JSONArray
04-24 21:14:02.603: W/System.err(831):  at org.json.JSON.typeMismatch(JSON.java:107)
04-24 21:14:02.603: W/System.err(831):  at org.json.JSONArray.<init>(JSONArray.java:91)
04-24 21:14:02.603: W/System.err(831):  at org.json.JSONArray.<init>(JSONArray.java:103)
04-24 21:14:02.615: W/System.err(831):  at pit.opensource.readjson.D0ReadJSONWebServiceActivity.pasreJSON(D0ReadJSONWebServiceActivity.java:85)
04-24 21:14:02.623: W/System.err(831):  at pit.opensource.readjson.D0ReadJSONWebServiceActivity.access$0(D0ReadJSONWebServiceActivity.java:78)
04-24 21:14:02.623: W/System.err(831):  at pit.opensource.readjson.D0ReadJSONWebServiceActivity$DownloadFBUser.doInBackground(D0ReadJSONWebServiceActivity.java:108)
04-24 21:14:02.623: W/System.err(831):  at pit.opensource.readjson.D0ReadJSONWebServiceActivity$DownloadFBUser.doInBackground(D0ReadJSONWebServiceActivity.java:1)
04-24 21:14:02.623: W/System.err(831):  at android.os.AsyncTask$2.call(AsyncTask.java:185)
04-24 21:14:02.633: W/System.err(831):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
04-24 21:14:02.633: W/System.err(831):  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
04-24 21:14:02.633: W/System.err(831):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
04-24 21:14:02.633: W/System.err(831):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
04-24 21:14:02.633: W/System.err(831):  at java.lang.Thread.run(Thread.java:1019)

what is the problem, I think it's in string encoding ?!

Update:

The code is here

//Download text -------------------------------------------------------------
private String DownloadText(String urlString){
    InputStream in = null;
    StringBuilder sb = new StringBuilder();
    try{
        in = OpenHttpConnection(urlString);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String line="";
        while((line = br.readLine())!= null){
            sb.append(line);
        }
    }catch(IOException ex){

    }
    return sb.toString();
}

//Parse JSON text -----------------------------------------------------------
private FBUser pasreJSON(String url){
    FBUser user = null;
    JSONArray json;
    Log.d("JSON----------------",DownloadText(url));
    try {
        user = new FBUser();
        json = new JSONArray(DownloadText(url));
        for(int i=0;i<json.length();i++){
            JSONObject object = json.getJSONObject(i);
            user.id = object.getString("id");
            user.name = object.getString("name");
            user.first_name = object.getString("first_name");
            user.last_name = object.getString("last_name");
            user.link = object.getString("link");
            user.username = object.getString("username");
            user.gender = object.getString("gender");
            user.locale = object.getString("locale");
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }

    return user;
}

I'm not sure if the JSONArray can parse a string that does not contain a bunch of primitives - the elements of your array are name-value pairs. EDIT: so please inclued your source code, like Jason already mentioned — AxelTheGerman
– AxelTheGerman, Commented Apr 24, 2012 at 21:23

Jason Robinson · Accepted Answer · 2012-04-24 21:31:02Z

1

at this line:

json = new JSONArray(DownloadText(url));

change it to:

json = new JSONObject(DownloadText(url));

And obviously change json to be a JSONOBject

answered Apr 24, 2012 at 21:31

Jason Robinson

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Comments

MByD · Accepted Answer · 2012-04-24 21:22:48Z

1

The error is that this is not a JSONArray, but a JSONObject. arrays are surrounded by square brackets, while objects by curly brackets.

Take a look at json.org, the official site.

answered Apr 24, 2012 at 21:22

MByD

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San · Accepted Answer · 2012-04-24 21:37:30Z

1

Try

JSONObject object = new JSONObject (DownloadText(url));
                     user.id = object.getString("id");   
               user.name = object.getString("name");  
                user.first_name = object.getString("first_name"); 
                 user.last_name = object.getString("last_name"); 
                 user.link = object.getString("link");         
         user.username = object.getString("username");        
          user.gender = object.getString("gender");            
      user.locale = object.getString("locale");

answered Apr 24, 2012 at 21:37

San

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sblom · Accepted Answer · 2012-04-24 21:22:14Z

0

Looks like pit.opensource.readjson.D0ReadJSONWebServiceActivity.pasreJSON is trying to decode a facebook user info repsonse into a JSONArray type.

You should be storing it in a JSONObject instead.

answered Apr 24, 2012 at 21:22

sblom

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