android手机端读取服务器端数据。服务器端已xml的形式发送的数据，手机端用DOM解析xml的方法，读取数据并保存到SQLite中，源代码如下：
Java code
    private void update() {   
        String urlStr = HttpUtil.BASE_URL + "servlet/UpdateServlet";
         URLConnection conn  = null ;
         InputStream in = null;
         DocumentBuilderFactory factory = null;
         DocumentBuilder builder = null;
         Document doc = null;
         Uri uri1 = null;
         ContentResolver cr = null;
         NodeList nl = null;
         
        try {        
            URL url = new URL(urlStr);
            conn = url.openConnection();
            in = conn.getInputStream();
            factory = DocumentBuilderFactory.newInstance();    
            builder = factory.newDocumentBuilder();
        }catch (Exception e1) { 
            System.out.println("e1.toString()---->>>>"+e1.toString());
        }
        
        
        try { 
            doc = builder.parse(in);
        }catch (Exception e2) { 
            System.out.println("e2.toString()----->>>>"+e2.toString());
        }
        
        
        try {         
            nl = doc.getElementsByTagName("menu");
            cr = getContentResolver();
                uri1 = Menus.CONTENT_URI;
            cr.delete(uri1, null, null);  

            // 循环将数据保存到SQLite
            for (int i = 0; i < nl.getLength(); i++) {
                
                ContentValues values = new ContentValues();
                int id = Integer.parseInt(doc.getElementsByTagName("id").item(i).getFirstChild().getNodeValue());
    item(i).getFirstChild().getNodeValue());
                String name = doc.getElementsByTagName("name").item(i).getFirstChild().getNodeValue();
    
                
                // 添加到ContenValues对象
                values.put("_id", id);
                values.put("name", name);
                 cr.insert(uri1, values);
                
            
            }
        }catch (Exception e3) { 
            System.out.println("e3.toString()---->>>"+e3.toString());
        }
}