Rechercher dans le fichier XML avec XPath dans Android

Question

Je développe une application sur android! Eh bien, j'ai un peu de conflit maintenant, je veux exécuter une requête XPath mais je ne suis pas arrivé à résoudre ce problème.

Cet exemple de XML filethat J'utilise:

<?xml version="1.0"?> 
<catalog> 
    <book id="bk101"> 
    <author>Gambardella, Matthew</author> 
<title>XML Developer's Guide</title> 
<genre>Computer</genre> 
<price>44.95</price> 
<publish_date>2000-10-01</publish_date> 
<description>An in-depth look at creating applications 
    with XML.</description> 
</book> 

<book id="bk102"> 
<author>Ralls, Kim</author> 
<title>Midnight Rain</title> 
<genre>Fantasy</genre> 
<price>5.95</price> 
<publish_date>2000-12-16</publish_date> 
<description>A former architect battles corporate zombies, 
    an evil sorceress.</description> 
</book> 

<book id="bk103"> 
<author>Corets, Eva</author> 
<title>Maeve Ascendant</title> 
<genre>Fantasy</genre> 
<price>5.95</price> 
<publish_date>2000-11-17</publish_date> 
<description>After the collapse of a nanotechnology 
    society in England.</description> 
</book> 
</catalog> 

Comment puis-je faire ??

Merci d'avance !!

Answer 1

Regardez cet exemple:

import java.io.FileReader; 
import javax.xml.xpath.XPath; 
import javax.xml.xpath.XPathConstants; 
import javax.xml.xpath.XPathFactory; 
import org.w3c.dom.Element; 
import org.w3c.dom.NodeList; 
import org.xml.sax.InputSource; 
public class GuestList { 
    public static void main(String[] args) throws Exception { 
    XPathFactory factory = XPathFactory.newInstance(); 
    XPath xPath = factory.newXPath(); 
    NodeList shows = (NodeList) xPath.evaluate("/schedule/show", new InputSource(new FileReader(
     "tds.xml")), XPathConstants.NODESET); 
    for (int i = 0; i < shows.getLength(); i++) { 
     Element show = (Element) shows.item(i); 
     String guestName = xPath.evaluate("guest/name", show); 
     String guestCredit = xPath.evaluate("guest/credit", show); 
     System.out.println(show.getAttribute("weekday") + ", " + show.getAttribute("date") + " - " 
      + guestName + " (" + guestCredit + ")"); 
    } 
    } 
} 

Le reste des exemples sont ici: http://jexp.ru/index.php/Java_Tutorial/XML/XPath