解析xml

SAX, DOM都可以用来解析xml，问的人太多，今天自己又用到还是写一下吧

<uses-permission android:name="android.permission.INTERNET"/>

几乎没有什么人是解析单机版的吧

public class CurrencyXMLReader
{
   private String urlM;
    
   public CurrencyXMLReader( String theUrl) 
   {
      urlM = theUrl;
   }
 
   public CurrencyList obtainCurrencyList() throws ParserConfigurationException, 
                                                   SAXException, 
                                                   IOException
   {
      SAXParserFactory parserFactory = SAXParserFactory.newInstance();
      SAXParser parser = parserFactory.newSAXParser();
 
      XMLReader xmlReader = parser.getXMLReader();
      CurrencyXMLHandler currHandler = new CurrencyXMLHandler();
      xmlReader.setContentHandler( currHandler);
       
      URL url = new URL( urlM);
      xmlReader.parse(new InputSource( url.openStream()));
 
      return currHandler.getCurrencyList();        
   }

public class CurrencyXMLReader
{
   private String urlM;
    
   public CurrencyXMLReader( String theUrl) 
   {
      urlM = theUrl;
   }
 
   public CurrencyList obtainCurrencyList() throws ParserConfigurationException, 
                                                   SAXException, 
                                                   IOException
   {
      SAXParserFactory parserFactory = SAXParserFactory.newInstance();
      SAXParser parser = parserFactory.newSAXParser();
 
      XMLReader xmlReader = parser.getXMLReader();
      CurrencyXMLHandler currHandler = new CurrencyXMLHandler();
      xmlReader.setContentHandler( currHandler);
       
      URL url = new URL( urlM);
      xmlReader.parse(new InputSource( url.openStream()));
 
      return currHandler.getCurrencyList();        
   }

 内容

 

<gesmes:envelope>
   <gesmes:subject>Reference rates</gesmes:subject>
   <gesmes:sender>
      <gesmes:name>European Central Bank</gesmes:name>
   </gesmes:sender>
 
   <cube>
      <cube time="2010-12-17">
         <cube currency="USD" rate="1.3260"/>
         <cube currency="JPY" rate="111.26"/>
         <cube currency="BGN" rate="1.9558"/>
         ...
         ...
      </cube>
   </cube>
</gesmes:envelope>

 

使用

public class CurrencyXMLHandler extends DefaultHandler{
  
   private CurrencyList currencyListM = new CurrencyList();
  
   @Override
   public void startElement( String theNamespaceURI, 
                             String theLocalName,
                             String theQName, 
                             Attributes theAtts) throws SAXException 
   {
      if( theLocalName.equals("Cube"))
      {
         if( theAtts != null)
         {
            if( theAtts.getValue( "currency") != null)
            {
               String currency = theAtts.getValue("currency");
               String rate = theAtts.getValue( "rate");
               currencyListM.add( new CurrencyData( currency, rate));
            }
            else if( theAtts.getValue( "time") != null)
            {
               currencyListM.setDataDate( theAtts.getValue("time"));
            }
         }
      }
   }
  
   CurrencyList getCurrencyList()
   {
      return currencyListM;
   }