SAX parsing xml file

In SAX parsing an XML file with only implemented startDocument () method
The remaining few are executed is not a problem where
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parameters Mody

 public void startElement (String uri, String localName, String qName, Attributes attributes) throws SAXException { }  
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 put your best parse the code and your xml 
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  http://blog.csdn.net/xiaanming/article/details/8937746  SAX parsing XML landlord can look 
 ------ For reference only --------------------------------------- 
 the content is MainActivity 
 package com.example.activity18; 
 
 import java.io.IOException; 
 import java.io.StringReader; 
 
 import javax.xml.parsers.ParserConfigurationException; 
 import javax.xml.parsers.SAXParserFactory; 
 
 import org.xml.sax.InputSource; 
 import org.xml.sax.SAXException; 
 import org.xml.sax.XMLReader; 
 
 import xmlParse.XmlInfo; 
 import xmlParse.XmlParse; 
 
 import com.example.download.DownLoad; 
 
 import android.os.Bundle; 
 import android.app.Activity; 
 import android.app.ListActivity; 
 import android.view.Menu; 
 import android.view.MenuItem; 
 
 public class MainActivity extends ListActivity { 
 
 private XmlParse xmlparse = new XmlParse (); 
 private static final String strurl = "http://10.0.2.2/mldn/a3.xml"; 
 @ Override 
 public boolean onOptionsItemSelected (MenuItem item) { 
 / / TODO Auto-generated method stub 
 if (item.getItemId () == 1) 
 { 
 / / System.out.println ("itemid ----->" + item.getItemId ()); 
 downloadXML (strurl); 
 
 
} 
 else if (item.getItemId () == 2) 
 { 
 System.out.println ("itemid ----->" + item.getItemId ()); 
} 
 return super.onOptionsItemSelected (item); 
} 
 
 @ Override 
 protected void onCreate (Bundle savedInstanceState) { 
 super.onCreate (savedInstanceState); 
 setContentView (R.layout.activity_main); 
} 
 
 @ Override 
 public boolean onCreateOptionsMenu (Menu menu) { 
 / / Inflate the menu; this adds items to the action bar if it is present. 
 getMenuInflater (). inflate (R.menu.main, menu); 
 menu.add (0, 1, 1, R.string.update); 
 menu.add (0, 2, 2, R.string.about); 
 return true; 
} 
 public String downloadXML (String strxml) 
 { 
 DownLoad download = new DownLoad (); 
 String s = ""; 
 try { 
 s = download.downloadFile (strxml); 
 System.out.println ("1111111111111111"); 
 SAXParser (s); 
 System.out.println ("22222222222"); 
 showList (); 
 System.out.println ("333333333333"); 
} catch (IOException e) { 
 / / TODO Auto-generated catch block 
 e.printStackTrace (); 
} 
 return s; 
 
} 
 public String SAXParser (String str) 
 { 
 SAXParserFactory factory = SAXParserFactory.newInstance (); 
 try { 
 XMLReader reader = factory.newSAXParser (). getXMLReader (); 
 reader.setContentHandler (xmlparse); 
 try { 
 reader.parse (new InputSource (new StringReader (str))); 
} catch (IOException e) { 
 / / TODO Auto-generated catch block 
 e.printStackTrace (); 
} 
 
} catch (SAXException e) { 
 / / TODO Auto-generated catch block 
 e.printStackTrace (); 
} catch (ParserConfigurationException e) { 
 / / TODO Auto-generated catch block 
 e.printStackTrace (); 
} 
 return null; 
} 
 public void showList () 
 { 
 System.out.println ("4444444444444"); 
 System.out.println (xmlparse.list.size ()); 
 for (XmlInfo info: xmlparse.list) { 
 
 System.out.println (info); 
} 
} 
 
} 
 
 
 
 This is DownLoad content 
 package com.example.download; 
 
 import java.io.BufferedReader; 
 import java.io.IOException; 
 import java.io.InputStreamReader; 
 import java.net.HttpURLConnection; 
 import java.net.MalformedURLException; 
 import java.net.URL; 
 
 public class DownLoad { 
 
 public String downloadFile (String str) throws IOException 
 { 
 URL url = new URL (str); 
 HttpURLConnection urlConn = (HttpURLConnection) url.openConnection (); 
 BufferedReader br = new BufferedReader (new InputStreamReader (urlConn.getInputStream ())); 
 String str2 = null; 
 String str1 = null; 
 while ((str1 = br.readLine ())! = null) 
 { 
 / / System.out.println (str1); 
 str2 + = str1; 
} 
 / / System.out.println ("s2 =" + str2); 
 
 br.close (); 
 return str2; 
} 
 
} 
 
 
 
 This is XmlParse content 
 package xmlParse; 
 
 
 import java.util.ArrayList; 
 import java.util.List; 
 
 import org.xml.sax.Attributes; 
 import org.xml.sax.SAXException; 
 import org.xml.sax.helpers.DefaultHandler; 
 
 public class XmlParse extends DefaultHandler { 
 
 String tagName = null; 
 public static List  list = new ArrayList  (); 
 XmlInfo info; 
 
 @ Override 
 public void characters (char [] ch, int start, int length) 
 throws SAXException { 
 / / TODO Auto-generated method stub 
 super.characters (ch, start, length); 
 System.out.println ("characters"); 
 String str = new String (ch, start, length); 
 if (tagName.equals ("mp3_name")) 
 { 
 info.setMp3_name (str); 
} 
 else if (tagName.equals ("mp3_size")) 
 { 
 info.setMp3_size (str); 
} 
 else if (tagName.equals ("lrc_name")) 
 { 
 info.setLrc_name (str); 
} 
 else if (tagName.equals ("lrc_size")) 
 { 
 info.setLrc_size (str); 
} 
 else if (tagName.equals ("id")) 
 { 
 info.setId (str); 
} 
} 
 
 @ Override 
 public void endDocument () throws SAXException { 
 / / TODO Auto-generated method stub 
 super.endDocument (); 
 System.out.println ("endDocument"); 
} 
 
 @ Override 
 public void endElement (String uri, String localName, String qName) 
 throws SAXException { 
 / / TODO Auto-generated method stub 
 super.endElement (uri, localName, qName); 
 System.out.println ("endElement"); 
 if (qName.equals ("resource")) 
 { 
 info.toString (); 
 list.add (info); 
} 
 tagName = ""; 
} 
 
 @ Override 
 public void startDocument () throws SAXException { 
 / / TODO Auto-generated method stub 
 / / super.startDocument (); 
 System.out.println ("startDocument"); 
} 
 
 @ Override 
 public void startElement (String uri, String localName, String qName, 
 Attributes attributes) throws SAXException { 
 / / TODO Auto-generated method stub 
 super.startElement (uri, localName, qName, attributes); 
 System.out.println ("startElement"); 
 tagName = localName; 
 if (tagName.equals ("resource")) 
 { 
 info = new XmlInfo (); 
} 
 
} 
 
 
 
} 
 
 This is XmlInfo content 
 package xmlParse; 
 
 public class XmlInfo { 
 public String getId () { 
 return id; 
} 
 public void setId (String id) { 
 this.id = id; 
} 
 public String getMp3_name () { 
 return mp3_name; 
} 
 public void setMp3_name (String mp3_name) { 
 this.mp3_name = mp3_name; 
} 
 public String getMp3_size () { 
 return mp3_size; 
} 
 public void setMp3_size (String mp3_size) { 
 this.mp3_size = mp3_size; 
} 
 public String getLrc_name () { 
 return lrc_name; 
} 
 public void setLrc_name (String lrc_name) { 
 this.lrc_name = lrc_name; 
} 
 public String getLrc_size () { 
 return lrc_size; 
} 
 public void setLrc_size (String lrc_size) { 
 this.lrc_size = lrc_size; 
} 
 @ Override 
 public String toString () { 
 / / TODO Auto-generated method stub 
 System.out.println (id); 
 return null; 
} 
 private String id; 
 private String mp3_name; 
 private String mp3_size; 
 private String lrc_name; 
 private String lrc_size; 
 
 
} 
 
 ------ For reference only ---------------------------------- ----- 
 probably a3.xml server to read the file and then parse each   contents are placed in a new Object XmlInfo then deposited in the collection of the last list element in the collection output 
 This is a3.xml content: 
  
  
  
  1001  
  zhangjie_mp3  
  11092822  
  zhangjie_lrc  
  1205  
  
  
 ------ For reference only ----------------------------- ---------- 
 Thank you upstairs to answer finally found str read xml file into a problem with this process eventually led to read xml file format error < br>