android json 데이터 가져오기

public static String getContent(String url) {
    StringBuilder sb = new StringBuilder();
    try {
        HttpClient client = new DefaultHttpClient();
        HttpParams httpParams = client.getParams();
        HttpConnectionParams.setConnectionTimeout(httpParams, 3 * 1000);
        HttpConnectionParams.setSoTimeout(httpParams, 5000);
        HttpResponse response = client.execute(new HttpGet(url));
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(entity.getContent(), "UTF-8"),
                    8192);
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line + "
");
            }
            reader.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return sb.toString();
}

class LoadSubList extends AsyncTask<String, SubInfo, Integer> {
 
    @Override
    protected Integer doInBackground(String... params) {
        try {
            String jsonStr = NetUtil.getContent(path);
            JSONArray array = new JSONArray(jsonStr);
            for (int i = 0; i < array.length(); i++) {
                JSONObject json = array.getJSONObject(i);
                String logo = json.getString("logo");
                String updatecycle = json.getString("updatecycle");
                int isdelete = json.getInt("isdelete");
                int pid = json.getInt("pid");
                String categoryHtml = json.getString("categoryHtml");
                String url = json.getString("url");
                int id = json.getInt("id");
                int issy = json.getInt("issy");
                String pushtime = json.getString("pushtime");
                String createtime = json.getString("createtime");
                String categoryname = json.getString("categoryname");
                int hasChild = json.getInt("hasChild");
                String introduction = json.getString("introduction");
                SubInfo subInfo = new SubInfo(logo, updatecycle, isdelete,
                        pid, categoryHtml, url, id, issy, pushtime,
                        createtime, categoryname, hasChild, introduction);
                publishProgress(subInfo);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
 
    @Override
    protected void onPostExecute(Integer result) {
        super.onPostExecute(result);
    }
 
    @Override
    protected void onProgressUpdate(SubInfo... values) {
        super.onProgressUpdate(values);
        syncAdapter(values);
    }
 
}
 
public void syncAdapter(SubInfo[] values) {
    for (SubInfo subInfo : values) {
        adapterSubManager.add(subInfo);
        adapterSubManager.notifyDataSetChanged();
    }
}