package test.xml;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.HashMap;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xmlpull.v1.XmlSerializer;

public class xml extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Write(“test.xml”, writeXml());

TextView tv = (TextView) findViewById(R.id.tv);
tv.setText(ReadXML());
}

private String writeXml() {
XmlSerializer serializer = Xml.newSerializer();
StringWriter writer = new StringWriter();
try {
serializer.setOutput(writer);

// < xml version=”1.0″ encoding=”UTF-8″ standalone=”yes” >
serializer.startDocument(“UTF-8″, true);
//
serializer.startTag(“”, “blog”);
serializer.attribute(“”, “number”, String.valueOf(1));

//
serializer.startTag(“”, “message”);
serializer.attribute(“”, “date”, “2009-09-23″);

//
serializer.startTag(“”, “title”);
serializer.text(“Android XML”);
serializer.endTag(“”, “title”);

// http://www.moandroid.com/ p=508
serializer.startTag(“”, “url”);
serializer.text(“http://www.cunynova.com”);
serializer.endTag(“”, “url”);

//
serializer.endTag(“”, “message”);
//
serializer.endTag(“”, “blog”);
serializer.endDocument();
return writer.toString();
} catch (Exception e) {
throw new RuntimeException(e);
}
}

public boolean Write(String path, String txt) {
try {
OutputStream os = openFileOutput(path, MODE_PRIVATE);
OutputStreamWriter osw = new OutputStreamWriter(os);
osw.write(txt);
osw.close();
os.close();
} catch (FileNotFoundException e) {
return false;
} catch (IOException e) {
return false;
}
return true;
}

private String ReadXML() {
String re = “123″;
DocumentBuilderFactory docBuilderFactory = null;
DocumentBuilder docBuilder = null;
Document doc = null;
try {
docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilder = docBuilderFactory.newDocumentBuilder();
// xml file 放到 assets目录中的
doc = docBuilder.parse(this.openFileInput(“test.xml”));
// root element
Element root = doc.getDocumentElement();
// Do something here
// get a NodeList by tagname
NodeList nodeList = root.getElementsByTagName(“blog”);
Node nd = nodeList.item(0);
re = nd.getFirstChild().getFirstChild().getNodeva lue();
// re = getAttributes().getNamedItem(“number”).getNodeva lue();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
doc = null;
docBuilder = null;
docBuilderFactory = null;
}
return re;
}

}