xmlのレスポンスからデータを読み込む

私はからのxml形式のデータを読み込んでいるので、アプリケーションを開発しています。だからどのようにそれを実装することができます。xmlのレスポンスからデータを読み込む

私は自分の側にウェブアプリケーションを開発していません。しかし、URLを取得すると、私は応答としてXMLデータを取得します。

2011-06-27 Pankaj Kumar

で快適なパースの外観のために、あなたの中

public class XMLfunctions { 

public final static Document XMLfromString(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) { 
     System.out.println("XML parse error: " + e.getMessage()); 
     return null; 
    } catch (SAXException e) { 
     System.out.println("Wrong XML file structure: " + e.getMessage()); 
     return null; 
    } catch (IOException e) { 
     System.out.println("I/O exeption: " + e.getMessage()); 
     return null; 
    } 

    return doc; 

} 


/** Returns element value 
    * @param elem element (it is XML tag) 
    * @return Element value otherwise empty String 
    */ 
public final static String getElementValue(Node elem) { 
    Node kid; 
    if(elem != null){ 
     if (elem.hasChildNodes()){ 
      for(kid = elem.getFirstChild(); kid != null; kid = kid.getNextSibling()){ 
       if(kid.getNodeType() == Node.TEXT_NODE ){ 
        return kid.getNodeValue(); 
       } 
      } 
     } 
    } 
    return ""; 
} 

    public static String getTopNewsXML(){  
     String line = null; 

     try { 

      DefaultHttpClient httpClient = new DefaultHttpClient(); 
      HttpPost httpPost = new HttpPost("url"); 

      HttpResponse httpResponse = httpClient.execute(httpPost); 
      HttpEntity httpEntity = httpResponse.getEntity(); 
      line = EntityUtils.toString(httpEntity); 

     } catch (UnsupportedEncodingException e) { 
      line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
     } catch (MalformedURLException e) { 
      line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
     } catch (IOException e) { 
      line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
     } 
     String st= ParseXMLNode(line,"doc"); 
     return st; 

    } 

public static String ParseXMLNode(String str,String node){ 
    String xmlRecords = str; 
    String results = ""; 
    String[] result = new String [10]; 
    StringBuffer sb = new StringBuffer(); 
    try { 
     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
     DocumentBuilder db = dbf.newDocumentBuilder(); 
     InputSource is = new InputSource(); 
     is.setCharacterStream(new StringReader(xmlRecords)); 
     Document doc = db.parse(is); 
     NodeList nlist = doc.getElementsByTagName(node); 

     sb.append("<results count="); 
     sb.append("\"10\""); 
     sb.append(">\r\n"); 


     for (int i = 0; i < nlist.getLength(); i++) { 
       Node node1 = nlist.item(i); 
       if (node1.getNodeType() == Node.ELEMENT_NODE) { 
        Element element = (Element) node1; 
        NodeList nodelist = element.getElementsByTagName("str"); 
        Element element1 = (Element) nodelist.item(0); 
        NodeList title = element1.getChildNodes(); 

        System.out.print((title.item(0)).getNodeValue()); 
        sb.append("<result>\r\n"); 
         sb.append("<title>"); 
          sb.append(title.item(0).getNodeValue().trim()); 
         sb.append("</title>\r\n"); 

        sb.append("</result>\r\n"); 
        result[i] = title.item(0).getNodeValue(); 

        } 
      } 
     sb.append("</results>"); 
    } catch (Exception e) { 
     System.out.println("Exception........"+results); 
     e.printStackTrace(); 
    } 
    return sb.toString(); 
    } 
} 

public static int numResults(Document doc) { 
    Node results = doc.getDocumentElement(); 
    int res = -1; 
    try { 
     res = Integer.valueOf(results.getAttributes().getNamedItem("count") 
       .getNodeValue()); 
    } catch (Exception e) { 
     res = -1; 
    } 
    return res; 
} 

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

クラスXMLfunctionsを作成します。活動

その後

ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>(); 

     String xml = XMLfunctions.getTopNewsXML(); 
     Document doc = XMLfunctions.XMLfromString(xml); 

     int numResults = XMLfunctions.numResults(doc); 
     Log.d(LOG_TAG, "Number of Results: " + numResults); 
     if ((numResults <= 0)) { 
      Toast.makeText(ParentActivity.this, "No Result Found",Toast.LENGTH_LONG).show(); 
      return null; 
     } 

     NodeList nodes = doc.getElementsByTagName("result"); 

     for (int i = 0; i < nodes.getLength(); i++) { 
      HashMap<String, String> map = new HashMap<String, String>(); 

      Element e = (Element) nodes.item(i); 
      map.put("title", XMLfunctions.getValue(e, "title")); 
      mylist.add(map); 
     } 
     return mylist;

あなたは、リスト内のデータを置くことができます

出典

2011-06-27 10:23:37