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POXML parsing failure
 

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  1. POXML parsing failure
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    <p>I am writing an application for XML parser in android But when I download the code and run it, it runs perfectly , But I wrote the same code but not working, Why so? </p> <p>Is there any prerequisite for that? Please help me with this</p> <p><strong>I am getting an error in <code>XMLParser.java</code></strong></p> <pre><code>package com.xmlparser; import java.io.IOException; import java.io.StringReader; import java.io.UnsupportedEncodingException; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import android.util.Log; public class XMLParser { // constructor public XMLParser() { } /** * Getting XML from URL making HTTP request * @param url string * */ public String getXmlFromUrl(String url) { String xml = null; try { // defaultHttpClient DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); HttpResponse httpResponse = httpClient.execute(httpPost); HttpEntity httpEntity = httpResponse.getEntity(); xml = EntityUtils.toString(httpEntity); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } // return XML return xml; } /** * Getting XML DOM element * @param XML string * */ public Document getDomElement(String xml){ Document doc = null; DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { DocumentBuilder db = dbf.newDocumentBuilder(); InputSource is = new InputSource(); is.setCharacterStream(new StringReader(xml)); doc = db.parse(is); } catch (ParserConfigurationException e) { Log.e("Error: ", e.getMessage()); return null; } catch (SAXException e) { Log.e("Error: ", e.getMessage()); return null; } catch (IOException e) { Log.e("Error: ", e.getMessage()); return null; } return doc; } /** Getting node value * @param elem element */ public final String getElementValue( Node elem ) { Node child; if( elem != null){ if (elem.hasChildNodes()){ for( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ){ if( child.getNodeType() == Node.TEXT_NODE ){ return child.getNodeValue(); } } } } return ""; } /** * Getting node value * @param Element node * @param key string * */ public String getValue(Element item, String str) { NodeList n = item.getElementsByTagName(str); return this.getElementValue(n.item(0)); } } </code></pre> <p>My Log Cat</p> <pre><code>11-22 15:35:53.675: E/AndroidRuntime(19208): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xmlparser/com.xmlparser.Xparser}: android.os.NetworkOnMainThreadException 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.app.ActivityThread.access$600(ActivityThread.java:140) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.os.Handler.dispatchMessage(Handler.java:99) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.os.Looper.loop(Looper.java:137) 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.app.ActivityThread.main(ActivityThread.java:4898) 11-22 15:35:53.675: E/AndroidRuntime(19208): at java.lang.reflect.Method.invokeNative(Native Method) 11-22 15:35:53.675: E/AndroidRuntime(19208): at java.lang.reflect.Method.invoke(Method.java:511) 11-22 15:35:53.675: E/AndroidRuntime(19208): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008) 11-22 15:35:53.675: E/AndroidRuntime(19208): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775) 11-22 15:35:53.675: E/AndroidRuntime(19208): at dalvik.system.NativeStart.main(Native Method) 11-22 15:35:53.675: E/AndroidRuntime(19208): Caused by: android.os.NetworkOnMainThreadException 11-22 15:35:53.675: E/AndroidRuntime(19208): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1118) 11-22 15:19:21.500: E/AndroidRuntime(16631): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 11-22 15:19:21.500: E/AndroidRuntime(16631): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 11-22 15:19:21.500: E/AndroidRuntime(16631): at java.net.InetAddress.getAllByName(InetAddress.java:214) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:670) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509) 11-22 15:19:21.500: E/AndroidRuntime(16631): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 11-22 15:19:21.500: E/AndroidRuntime(16631): at com.xmlparser.XMLParser.getXmlFromUrl(XMLParser.java:45) 11-22 15:19:21.500: E/AndroidRuntime(16631): at com.xmlparser.Xparser.onCreate(Xparser.java:37) 11-22 15:19:21.500: E/AndroidRuntime(16631): at android.app.Activity.performCreate(Activity.java:5206) 11-22 15:19:21.500: E/AndroidRuntime(16631): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) 11-22 15:19:21.500: E/AndroidRuntime(16631): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064) </code></pre> <p>this is my Xparser.java</p> <pre><code>package com.xmlparser; import java.util.ArrayList; import java.util.HashMap; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; public class Xparser extends ListActivity { static final String URL = "http://api.androidhive.info/pizza/?format=xml"; // XML key nodes static final String KEY_ITEM = "item"; static final String KEY_ID = "id"; static final String KEY_NAME = "name"; static final String KEY_COST = "cost"; static final String KEY_DESC = "description"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_xmlparser); ArrayList&lt;HashMap&lt;String, String&gt;&gt; menuItems = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(URL);// getting XML Document doc = parser.getDomElement(xml);// getting Dom Element NodeList n1 = doc.getElementsByTagName(KEY_ITEM); // looping through all item nodes &lt;item&gt; for(int i=0 ; i &lt; n1.getLength(); i++){ HashMap&lt;String,String&gt; map = new HashMap&lt;String,String&gt;(); Element e = (Element) n1.item(i); //adding each child to Hashmap node key map.put(KEY_ID, parser.getValue(e,KEY_ID)); map.put(KEY_NAME, parser.getValue(e,KEY_NAME)); map.put(KEY_COST, "Rs."+ parser.getValue(e,KEY_COST)); map.put(KEY_DESC, parser.getValue(e,KEY_DESC)); // adding HashList to ArrayList menuItems.add(map); } // Adding menuItems to ListView ListAdapter adapter = new SimpleAdapter(this, menuItems, R.layout.list_select_item, new String[] { KEY_NAME, KEY_DESC, KEY_COST }, new int[] { R.id.name, R.id.desciption, R.id.cost }); setListAdapter(adapter); // selecting single ListView item ListView lv = getListView(); lv.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { // TODO Auto-generated method stub String name = ((TextView) view.findViewById(R.id.name)).getText().toString(); String cost = ((TextView) view.findViewById(R.id.cost)).getText().toString(); String desc = ((TextView) view.findViewById(R.id.desciption)).getText().toString(); Intent in = new Intent(); in.putExtra(KEY_NAME, name); in.putExtra(KEY_DESC, desc); in.putExtra(KEY_COST, cost); startActivity(in); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.xmlparser, menu); return true; } } </code></pre>
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    1. PO
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    1. PTQuestion
    1. USAndroid Noob
    1. USAndroid Noob
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COPlease add what's not working. Are you running in exceptions? Is there a stacktrace?
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      1. POXML parsing failure
      1. USFeinesFabi
    2. COYou need to post the errors you get.
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      1. POXML parsing failure
      1. USBlacklight
    3. COwhat error you got??'
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      1. POXML parsing failure
      1. USsubash
 

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