android 解析xml字符串

package a.test;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.StringReader;

import javax.xml.parsers.SAXParser;

import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.InputSource;

import org.xml.sax.XMLReader;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

import biz.source_code.base64Coder.Base64Coder;

import a.test.ExampleHandler;

import a.test.ParsedExampleDataSet;

import android.app.Activity;

import android.os.Bundle;

import android.util.Xml;

import android.widget.EditText;

import android.widget.TextView;

public class b extends Activity {

    /** Called when the activity is first created. */

 EditText tv1;

 @Override

 public void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.main);

  tv1 = (EditText) findViewById(R.id.tv);

  tv1.setText("000");

  String xml = "<VCOM version='1.1'><loginlink>11111023</loginlink><errmsg>dfft</errmsg></VCOM>";

  tv1.setText(xml);

  ByteArrayInputStream tInputStringStream = null;

  try

  {

  if (xml != null && !xml.trim().equals("")) {

   tInputStringStream = new ByteArrayInputStream(xml.getBytes());

  }

  }

  catch (Exception e) {

   // TODO: handle exception

   tv1.setText(e.getMessage());

   return;

  }

  XmlPullParser parser = Xml.newPullParser();

  try {

   parser.setInput(tInputStringStream, "UTF-8");

   int eventType = parser.getEventType();

   while (eventType != XmlPullParser.END_DOCUMENT) {

    switch (eventType) {

    case XmlPullParser.START_DOCUMENT:// 文档开始事件,可以进行数据初始化处理

    // persons = new ArrayList<Person>();

     break;

    case XmlPullParser.START_TAG:// 开始元素事件

     String name = parser.getName();

     if (name.equalsIgnoreCase("errmsg")) {

      // currentPerson = new Person();

      // currentPerson.setId(new

      // Integer(parser.getAttributeValue(null, "id")));

      tv1.setText(parser.nextText());

     } 

//      else if (currentPerson != null) {

//      if (name.equalsIgnoreCase("loginlink")) {

//       currentPerson.setName(parser.nextText());// 如果后面是Text节点,即返回它的值

//      } else if (name.equalsIgnoreCase("errmsg")) {

//       currentPerson.setAge(new Short(parser.nextText()));

//      }

//     }

     break;

    case XmlPullParser.END_TAG:// 结束元素事件

//     if (parser.getName().equalsIgnoreCase("person")

//       && currentPerson != null) {

//      persons.add(currentPerson);

//      currentPerson = null;

//     }

     break;

    }

    eventType = parser.next();

   }

   tInputStringStream.close();

   // return persons;

  } catch (XmlPullParserException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  } catch (IOException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  }

 }

}