How to call a java applet or javascript from zk?

answered 2009-10-09 14:37:57 +0800

kingsz1
81 ● 1 ● 3

Thank you. I still have problem.

I found an applet from: http://techdetails.agwego.com/2008/02/11/37/

According to zk doc, to call an applet may like this:
<applet code="APPLET/ticker.class" height="320" width="620"></applet>

How to call the function(s) in MacAddressApplet.java in the applet to return value to my zk comp?
-------------------------------------------------------------------------------------------------

/*
* Author: Tim Desjardins
* Copyright (c) 2008 Agwego Enterprises Inc.
*
* Feel free to use or abuse this code anyway you wish, without warranty of course.
*/

import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.ArrayList;
import java.applet.Applet;

public class MacAddressApplet extends Applet
{
public static String sep = ":";
public static String format = "%02X";

/**
* getMacAddress - return the first mac address found
* separator - byte seperator default ":"
* format - byte formatter default "%02X"
*
* @param ni - the network interface
* @return String - the mac address as a string
* @throws SocketException - pass it on
*/
public static String macToString( NetworkInterface ni ) throws SocketException
{
return macToString( ni, MacAddressApplet.sep, MacAddressApplet.format );
}

/**
* getMacAddress - return the first mac address found
*
* @param ni - the network interface
* @param separator - byte seperator default ":"
* @param format - byte formatter default "%02X"
* @return String - the mac address as a string
* @throws SocketException - pass it on
*/
public static String macToString( NetworkInterface ni, String separator, String format ) throws SocketException
{
byte mac [] = ni.getHardwareAddress();

if( mac != null ) {
StringBuffer macAddress = new StringBuffer( "" );
String sep = "";
for( byte o : mac ) {
macAddress.append( sep ).append( String.format( format, o ) );
sep = separator;
}
return macAddress.toString();
}

return null;
}

/**
* getMacAddress - return the first mac address found
*
* @return the mac address or undefined
*/
public static String getMacAddress()
{
try {
Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();

// not all interface will have a mac address for instance loopback on windows
while( nis.hasMoreElements() ) {
String mac = macToString( nis.nextElement() );
if( mac != null )
return mac;
}
} catch( SocketException ex ) {
System.err.println( "SocketException:: " + ex.getMessage() );
ex.printStackTrace();
} catch( Exception ex ) {
System.err.println( "Exception:: " + ex.getMessage() );
ex.printStackTrace();
}

return "undefined";
}

/**
* getMacAddressesJSON - return all mac addresses found
*
* @return a JSON array of strings (as a string)
*/
public static String getMacAddressesJSON()
{
try {
String macs [] = getMacAddresses();

String sep = "";
StringBuffer macArray = new StringBuffer( "['" );
for( String mac: macs ) {
macArray.append( sep ).append( mac );
sep = "','";
}
macArray.append( "']" );

return macArray.toString();
} catch( Exception ex ) {
System.err.println( "Exception:: " + ex.getMessage() );
ex.printStackTrace();
}

return "[]";
}

/**
* getMacAddresses - return all mac addresses found
*
* @return array of strings (mac addresses) empty if none found
*/
public static String [] getMacAddresses()
{
try {
Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();

ArrayList<String> macs = new ArrayList<String>();
while( nis.hasMoreElements() ) {
String mac = macToString( nis.nextElement() );
// not all interface will have a mac address for instance loopback on windows
if( mac != null ) {
macs.add( mac );
}
}
return macs.toArray( new String[0] );
} catch( SocketException ex ) {
System.err.println( "SocketException:: " + ex.getMessage() );
ex.printStackTrace();
} catch( Exception ex ) {
System.err.println( "Exception:: " + ex.getMessage() );
ex.printStackTrace();
}

return new String[0];
}

/**
* getMacAddresses - return all mac addresses found
*
* @param sep - use a different separator
*/
public static void setSep( String sep )
{
try {
MacAddressApplet.sep = sep;
} catch( Exception ex ) {
// don't care
}
}

/**
* getMacAddresses - return all mac addresses found
*
* @param format - the output format string for bytes that can be overridden default hex.
*/
public static void setFormat( String format )
{
try {
MacAddressApplet.format = format;
} catch( Exception ex ) {
// don't care
}
}

public static void main( String... args )
{
System.err.println( " MacAddress = " + getMacAddress() );

setSep( "-" );
String macs [] = getMacAddresses();

for( String mac : macs )
System.err.println( " MacAddresses = " + mac );

setSep( ":" );
System.err.println( " MacAddresses JSON = " + getMacAddressesJSON() );
}
}

answered 2009-10-10 03:11:55 +0800

kingsz1
81 ● 1 ● 3

Thank you for help. I added the MacAddressApplet.jar as lib to the project and used this code in zul:

<applet code="MacAddressApplet.class" name="macaddressapplet" height="0" width="0"></applet>

Click a button to display mac:

tbxMacAddr.setValue(MacAddressApplet.getMacAddresses());

the page first load had no error but once click to get the mac address, I got a error saying MacAddressApplet not found.

How to call the applet from zul directly to get return value? Please help.