Thank you James:
You gave me the key to start. I wrote the appender. It's working fine. I
appretiate your help.
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import javax.swing.JApplet;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.WriterAppender;
public class FrameAppender extends WriterAppender
{
private JTextArea text;
private JFrame frame;
private OutputStreamWriter out;
public FrameAppender(JApplet applet)
{
this (applet , "Logging");
}
public FrameAppender(JApplet applet, String title)
{
text = new JTextArea (15,50);
text.setEditable(false);
JScrollPane pane = new JScrollPane(text);
frame = new JFrame(title);
Container container = frame.getContentPane();
container.setLayout(new BorderLayout());
container.add( pane , BorderLayout.CENTER);
frame.pack();
frame.validate();
frame.setVisible(true);
//frame.setDefaultCloseOperation (JFrame.DISPOSE_ON_CLOSE);
out = new OutputStreamWriter(new JTextFieldOutputStream(this.text));
this.setWriter(out);
this.setImmediateFlush(true);
this.setLayout(new
PatternLayout(PatternLayout.TTCC_CONVERSION_PATTERN));
frame.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
frame.setVisible(false);}
public void windowClosed(WindowEvent e) {
frame.setVisible(false);}
});
}
private class JTextFieldOutputStream extends OutputStream{
private JTextArea text;
public JTextFieldOutputStream(JTextArea text){
this.text=text;}
public void write( int b ) throws IOException {
text.append( String.valueOf( ( char )b ) ); }
}
}
James Stauffer wrote:
Write your own appender that passes the messages to the JFrame.
On 9/14/06, Mansour <[EMAIL PROTECTED]> wrote:
I am writing an applet, and hoping I can find a way to log to a JFrame.
My applet consists of many classes. So I 'll have to wrap them in a jar.
Is there a direct way to do this ??
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