Echo Web Framework

sample code

		final FileUploadSelector selector = new FileUploadSelector();
		selector.setButtonMode(ButtonMode.image);
		selector.setButtonDisplayMode(ButtonDisplay.auto);
		selector.setInputSize(20);
		selector.setUploadSizeLimit(UploadSPI.NO_SIZE_LIMIT);
		selector.setBackground(new Color(0xa1a1a1));
		selector.setBorder(new Border(1, Color.BLUE, Border.STYLE_GROOVE));
		selector.setProgressBar(new ProgressBar());
		selector
				.setUploadCallback(new DefaultUploadCallback(new File(filePath)));
		selector.addActionListener(new FinishListener());

		RowLayoutData buttonLayoutData = new RowLayoutData();
		buttonLayoutData.setInsets(new Insets(new Extent(5, Extent.MM),
				new Extent(0, Extent.PX), new Extent(0, Extent.PX), new Extent(
						0, Extent.PX)));
		selector.setLayoutData(buttonLayoutData);

		parent.add(selector);

upload event listener

package studentview;

import nextapp.echo.app.Extent;
import nextapp.echo.app.Insets;
import nextapp.echo.app.event.ActionEvent;
import nextapp.echo.app.event.ActionListener;
import nextapp.echo.app.layout.RowLayoutData;
import echopoint.tucana.FileUploadSelector;
import echopoint.tucana.event.UploadCallback;
import echopoint.tucana.event.UploadCancelEvent;
import echopoint.tucana.event.UploadFailEvent;
import echopoint.tucana.event.UploadFinishEvent;
import echopoint.DirectHtml;

public class FinishListener implements ActionListener {
	private static final long serialVersionUID = 1l;

	private GeneralUploadWindow guw;

	public FinishListener(GeneralUploadWindow newguw) {
		guw = newguw;
	}
	
	public FinishListener(){
		guw = null;
	}

	public void actionPerformed(final ActionEvent event) {
		final FileUploadSelector upload = (FileUploadSelector) event
				.getSource();
		final UploadCallback callback = upload.getUploadCallback();

		if (callback != null) {
			final StringBuilder builder = new StringBuilder(128);

			for (int ii = 1; ii < upload.getParent().getComponentCount(); ii++) {
				upload.getParent().remove(ii);
			}

			if (callback.getEvent() instanceof UploadFinishEvent) {
				builder.append("Upload of file: <b>");
				builder.append(callback.getEvent().getFileName());
				builder.append("</b> succeeded.");
			}
			final boolean success = (callback.getEvent() instanceof UploadFinishEvent);

			if (callback.getEvent() instanceof UploadFailEvent) {
				builder.append("Upload ");
				if (callback.getEvent() != null) {
					builder.append(" of file: <b>");
					builder.append(callback.getEvent().getFileName());
					builder.append("</b>");
				}

				builder.append(" failed");
			}

			if (callback.getEvent() instanceof UploadCancelEvent) {
				builder.append("Upload ");
				if (callback.getEvent() != null) {
					builder.append(" of file: <b>");
					builder.append(callback.getEvent().getFileName());
					builder.append("</b>");
				}

				builder.append(" cancelled.");
				if(guw != null){
					guw.getCancelButton().setEnabled(true);					
				}
			}
			DirectHtml dh = new DirectHtml(builder.toString());
			
			RowLayoutData buttonLayoutData = new RowLayoutData();
			buttonLayoutData.setInsets(new Insets(new Extent(3, Extent.MM),
					new Extent(2, Extent.MM), new Extent(0, Extent.PX), new Extent(
							0, Extent.PX)));
			dh.setLayoutData(buttonLayoutData);
			
			upload.getParent().add(dh);
			if(guw != null){
				guw.getCancelButton().setEnabled(false);				
			}
			
			if (upload.getProgressBar() != null) {
				if (success) {
					String filename = callback.getEvent().getFileName();
					if(guw != null){
						guw.successfulUpload(filename);						
					}
				}
				upload.getProgressBar().setText(
						(success) ? "Finished upload!" : "Cancelled upload!");
			}
		}
	}
}

hope it helps

I've gone through a long process to learn how to use this component :)