Android xml parsing [closed]

Answer 1

1. Getting XML content by making HTTP Request

   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;
   }
   

2. Parsing XML content and getting DOM element

   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 DOM
           return doc;
       }
   

3. Get each xml child element value by passing element node name

   public String getValue(Element item, String str) {
       NodeList n = item.getElementsByTagName(str);
       return this.getElementValue(n.item(0));
   }
   
   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 "";
   }