import org.kxml.io.*;
import org.kxml.kdom.*;
import org.kxml.parser.*;
import org.kxml.wap.*;

public class Converter {
 public byte[] getXMLStream( byte[] wbxmlData ) {
 try {
  // Construct an InputStream on byte[]
  // to be used by WbxmlParser.
  ByteArrayInputStream in = new ByteArrayInputStream(wbxmlData);
  AbstractXmlParser parser = new WbxmlParser(in);

  // Construct a DOM Document to parse WBXML.
  Document document = new Document ();
  document.parse(parser);
  in.close();

  // Make a Writer on which XmlWriter can write.
  CharArrayWriter out = new CharArrayWriter();
  AbstractXmlWriter writer = new XmlWriter(out);
  document.write(writer);
  writer.close();

  // Get  XML byte[] from CharArrayWriter filled by XmlWriter.
  wbxmlData = out.toString().getBytes();
  out.close();

  }//try
 catch (Exception e) {e.printStackTrace();}
 return wbxmlData;
 }//getXMLStream

 public byte[] getWBXMLStream(byte[] xmlData) {
    try {
  // Construct an InputStreamReader on ByterArrayInputStream.
  InputStreamReader in = new InputStreamReader(new ByteArrayInputStream(xmlData));
  
  // Make parser using this Reader.
  XmlParser parser = new XmlParser(in);
    
  // Construct a DOM Document to parse XML.
  Document document = new Document ();
  document.parse(parser);
  in.close();
    
  // Make an OutputStream on which WbxmlWriter can write.
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  AbstractXmlWriter writer = new WbxmlWriter(out);
  document.write(writer);
  writer.close();

  // Get WBXML from this stream.
  xmlData = out.toString().getBytes();
  out.close();

  }//try
 catch (Exception e) { e.printStackTrace(); }
 return xmlData;
 }//getWBXMLStream

}//class Converter
再次恳请大家帮忙!谢谢了.