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POandroid google news json parsing woes
 

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  1. POandroid google news json parsing woes
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    <p>I am writing an Android news reader as a learning exercise and having lots of trouble parsing the data. I have searched everywhere. The tutorials I have found use <code>JSON</code> streams that are of a much simpler structure than what google is sending.</p> <p>Here is a snippet of the string I capture - the JSON array starts with <em>"entries"</em> and I am showing two entries, with the middle of the second one deleted for brevity.</p> <pre><code>{ "responseData": { "feed": { "feedUrl": "http://news.google.com/news?output\u003drss", "title": "Top Stories - Google News", "link": "http://news.google.com/news? pz\u003d1\u0026amp;ned\u003dus\u0026amp;hl\u003den", "author": "", "description": "Google News", "type": "rss20", "entries": [{ "title": "Major air rescue planned in flooded Colorado county - Fox News", "link": "http://news.google.com/news/url? sa\u003dt\u0026fd\u003dR\u0026usg\u003dAFQjCNHCJS1c-eurSg- 8tAt0PjZ4tiaLdA\u0026url\u003dhttp://www.foxnews.com/weather/2013/09/15/colorado-braces-for-more-heavy-rain-deadly-floods/", "author": "", "publishedDate": "Mon, 16 Sep 2013 04:49:21 -0700", "contentSnippet": "U.S. News \u0026 World ReportMajor air rescue planned in flooded Colorado countyFox NewsResidents of Boulder County, Colorado are ...", "content": "\u003ctable border\u003d\"0\" cellpadding\u003d\"2\" cellspacing\u003d\"7\" 3d\"\"border\u003d\"1\" width\u003d\"80\" height\u003d\"80\"\u003e\u003cbr\u003e\u003cfont size\u003d\"-2\"\u003eU.S. News \u0026amp; 03e\u003c/font\u003e\u003cbr\u003e\u003cfont size\u003d\"-1\"\u003eResidents of Boulder County, Colorado are being asked to help guide helicopter pilots to their locations Monday as a major air rescue is being planned to take advantage of a clear weather forecast. \u0026quot;The pilots are going to go anywhere and everywhere they \u003cb\u003e...\u003c/b\u003e\u003c/font\u003e\u003cbr\u003e\u003cfont size\u003d\"-1\"\u003e\u003ca href\u003d\"http://news.google.com/news/url? sa\u003dt\u0026amp;fd\u003dR\u0026amp;usg\u003dAFQjCNHc6lIe9u_YShLkh7NV5WR9rO6YHQ\u0026amp; url\u003dhttp://www.therepublic.com/view/story/b663f09bbf48403c9041a86623fe428e/CO-- Colorado-Flooding-National-Guard\"\u003eNational Guard members trapped during evacuations from flooded Colorado town\u003c/a\u003e\u003cfont size\u003d\"-1\" color\u003d\"#6f6f6f\"\u003eThe Republic\u003c/font\u003e\u003c/font\u003e\u003cbr\u003e\u003cfont size\u003d\"-1\"\u003e\u003ca href\u003d\"http://news.google.com/news/url? sa\u003dt\u0026amp;fd\u003dR\u0026amp;usg\u003dAFQjCNFij70BTG-5dO69JM0BVO32S0S- aA\u0026amp;url\u003dhttp://www.cnn.com/2013/09/15/us/colorado-flooding/? hpt%3Dhp_t1\"\u003eColorado floods: More than 500 still unaccounted for as \u0026#39;devastating\u0026#39; rain looms\u003c/a\u003e\u003cfont size\u003d\"-1\" Radio\u003c/a\u003e\u003c/font\u003e\u003cbr\u003e\u003cfont size\u003d\"-1\"\u003e\u003ca href\u003d\"http://news.google.com/news/more? ncl\u003ddQHisuNx5u46LtMZh5z80DBxCCRjM\u0026amp;ned\u003dus\u0026amp;topic\u003dh\"\u003e\u 003cb\u003eall 1,507 news articles »\u003c/b\u003e\u003c/a\u003e\u003c/font\u003e\u003c/div\u003e\u003c/font\u003e\u003c/td\u0 03e\u003c/tr\u003e\u003c/table\u003e", "categories": ["Top Stories"] }, { "title": "Costa Concordia salvage begins: Will ship stay in one piece during righting? - CNN", "link": "http://news.google.com/news/url? sa\u003dt\u0026fd\u003dR\u0026usg\u003dAFQjCNFD_8vBF3Gb6B2_6DnbCDwMELEkFQ\u0026url\u003dhtt p://www.cnn.com/2013/09/15/world/europe/italy-costa-concordia-salvage/", "author": "", ....deletedcontentsforbrevity...."categories": ["Top Stories"] }] } }, "responseDetails": null, "responseStatus": 200 } </code></pre> <p>So I have successfully captured the string and now want to create a <code>JSONArray</code> and extract the <code>JSONObjects</code> from it. Here is the code:</p> <pre><code>private void parseJSONString( JSONObject Jobj) throws IOException, JSONException { try { // Getting Array of news newsItems = Jobj.getJSONArray(ENTRIES); // looping through All Contacts for(int i = 0; i &lt; newsItems.length(); i++){ JSONObject c = newsItems.getJSONObject(i); // Storing each json item in variable String title = c.getString(TITLE); String link = c.getString(LINK); String author = c.getString(AUTHOR); String pubDate = c.getString(PUBLISHED_DATE); String content = c.getString(CONTENT); } } catch (JSONException e) { e.printStackTrace(); } </code></pre> <p>I am catching the <code>JSONException</code> with the message "No values for entries" from the very </p> <p>first line of code: <code>newsItems = Jobj.getJSONArray(ENTRIES);</code> </p> <p>The parameter jobj and call to this method is created <code>onPostExecute</code> like this: </p> <pre><code>protected void onPostExecute(Void result) { mTextView.setText(mDataString); if (mDataString != null) try { mJSONObj = new JSONObject(mDataString); parseJSONString(mJSONObj); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block Log.e("JSON Parser", "Error converting string to json " + e.toString()); } } </code></pre> <p>Yet as you can see, <em>"entries"</em> clearly precedes the array marker <em>"["</em> in the text file. I am truly stumped. Would appreciate a little help.</p>
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