Hey members i have an xml file i would love to parse.Am developing a J2ME application that should receive response from the server which is xml.am supposed to parse this data so that it sis displayed on a screen.This is the data
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and this is what i had done bt i was getting an error
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.IOException;
import java.io.InputStreamReader;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.Vector;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import org.kxml2.io.*;
import org.xmlpull.v1.*;
/**
* @author dninsiima
*/
public class LoginResponse extends MIDlet implements CommandListener{
Form mainForm = new Form (“Login Response from Baraza”);
//Location of xml file
static final String URL = “http://localhost:8080/examples/login.xml”;
Vector ResponseVector = new Vector();
StringItem resultItem = new StringItem (“”, “”);
private final static Command xmlCommand = new Command(“Get XML Data”, Command.OK,1);
class ReadXML extends Thread {
public void run() {
try {
//Open http connection
HttpConnection httpConnection = (HttpConnection) Connector.open(URL);
//Initilialize XML parser
KXmlParser parser = new KXmlParser();
parser.setInput(new InputStreamReader(httpConnection.openInputStream()));
parser.nextTag();
parser.require(XmlPullParser.START_TAG, null, “WV-CSP-Message”);
//Iterate through our XML file
while (parser.nextTag () != XmlPullParser.END_TAG)
readXMLData(parser);
parser.require(XmlPullParser.END_TAG, null, “WV-CSP-Message”);
parser.next();
parser.require(XmlPullParser.END_DOCUMENT, null, null);
}
catch (Exception e) {
e.printStackTrace ();
resultItem.setLabel (“Error:”);
resultItem.setText (e.toString ());
}
}
}
private boolean midletPaused = false;
//
//
/**
* The LoginResponse constructor.
*/
public LoginResponse() {
mainForm.append (resultItem);
mainForm.addCommand (xmlCommand);
mainForm.setCommandListener (this);
}
//
//
//
/**
* Initilizes the application.
* It is called only once when the MIDlet is started. The method is called before the startMIDlet method.
*/
private void initialize() {
// write pre-initialize user code here
// write post-initialize user code here
}
//
//
/**
* Performs an action assigned to the Mobile Device – MIDlet Started point.
*/
public void startMIDlet() {
// write pre-action user code here
// write post-action user code here
}
//
//
/**
* Performs an action assigned to the Mobile Device – MIDlet Resumed point.
*/
public void resumeMIDlet() {
// write pre-action user code here
// write post-action user code here
}
//
//
/**
* Switches a current displayable in a display. The display instance is taken from getDisplay method. This method is used by all actions in the design for switching displayable.
* @param alert the Alert which is temporarily set to the display; if null, then nextDisplayable is set immediately
* @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
//
/**
* Returns a display instance.
* @return the display instance.
*/
public Display getDisplay () {
return Display.getDisplay(this);
}
/**
* Exits MIDlet.
*/
public void exitMIDlet() {
switchDisplayable (null, null);
destroyApp(true);
notifyDestroyed();
}
/**
* Called when MIDlet is started.
* Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet.
*/
public void startApp() {
Display.getDisplay (this).setCurrent (mainForm);
new ReadXML().start();
}
/**
* Called when MIDlet is paused.
*/
public void pauseApp() {
midletPaused = true;
}
/**
* Called to signal the MIDlet to terminate.
* @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released.
*/
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
StringBuffer sb = new StringBuffer() ;
if (c == xmlCommand) {
//Display parsed XML file
for(int i= 0 ; i< ResponseVector.size() ;i++){
Login login = (Login) ResponseVector.elementAt(i);
sb.append("\n");
sb.append("Session Type : ");
sb.append(login.getSessionType());
sb.append("\n");
sb.append("Transaction Mode : ");
sb.append(login.getTransactionMode());
sb.append("\n");
sb.append("Transaction ID : ");
sb.append(login.getTransactionID());
sb.append("\n");
sb.append("User ID : ");
sb.append(login.getUserID());
sb.append("\n");
sb.append("URL : ");
sb.append(login.getURL());
sb.append("\n");
sb.append("Password : ");
sb.append(login.getPassword());
sb.append("\n");
sb.append("Time To Live : ");
sb.append(login.getTimeToLive());
sb.append("\n");
sb.append("Session Cookie : ");
sb.append(login.getSessionCookie());
}
resultItem.setLabel("Login Information");
} resultItem.setText(sb.toString());
}
private void readXMLData(KXmlParser parser)
throws IOException, XmlPullParserException {
//Parse our XML file
parser.require(XmlPullParser.START_TAG, null, "Session");
Login login = new Login();
while (parser.nextTag() != XmlPullParser.END_TAG) {
parser.require(XmlPullParser.START_TAG, null, null);
String SessionType = parser.getName();
String text = parser.nextText();
System.out.println ("<"+SessionType+">“+text);
if (SessionType.equals(“URL”))
login.setURL(text);
else if (SessionType.equals(“SessionType”))
login.setSessionType(text);
else if (SessionType.equals(“TransactionMode”))
login.setTransactionMode(text);
else if (SessionType.equals(“TransactionID”))
login.setUserID(text);
else if (SessionType.equals(“UserID”))
login.setPassword(text);
else if (SessionType.equals(“TimeToLive”))
login.setTimeToLive(text);
else if (SessionType.equals(“SessionCookie”))
login.setSessionCookie(text);
parser.require(XmlPullParser.END_TAG, null, “SessionType”);
ResponseVector.addElement(login);
parser.require(XmlPullParser.END_TAG, null, “Session”);
}
}
}
please help me
