import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import javax.swing.SwingUtilities;

public class VerzeichnisZippen {

	public VerzeichnisZippen() {
		
		String dirToZip = "/Users/Willi/Desktop/test";
		String zipName = "/Users/Willi/Desktop/abrakadabra";
        ZipOutputStream zos = null;
		try {
			File f = new File(zipName + ".zip");
			System.out.println("Erzeuge Archiv " + f.getCanonicalPath());
			zos = new ZipOutputStream(new FileOutputStream(
					f.getCanonicalPath()));
			zipDir(zipName, dirToZip, new File(dirToZip), zos);
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (zos != null) zos.close();
			} catch (IOException ioe) {}
		}
	}

	private void zipDir(String zipName, String dirToZip, File dirToZipFile,
			ZipOutputStream zos) {
		if (zipName == null || dirToZip == null || dirToZipFile == null
				|| zos == null || !dirToZipFile.isDirectory())
			return;

		FileInputStream fis = null;
		try {
			File[] fileArr = dirToZipFile.listFiles();
			String path;
			for (File f : fileArr) {
				if (f.isDirectory()) {
					zipDir(zipName, dirToZip, f, zos);
					continue;
				}
				fis = new FileInputStream(f);
				path = f.getCanonicalPath();
				String name = path.substring(dirToZip.length(), path.length());
				System.out.println("Packe " + name);
				zos.putNextEntry(new ZipEntry(name));
				int len;
				byte[] buffer = new byte[2048];
				while ((len = fis.read(buffer, 0, buffer.length)) > 0) {
					zos.write(buffer, 0, len);
				}
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
            try {
                if(fis != null) fis.close();
            } catch (IOException ioe) {}
        }
	}

	public static void main(String[] args) {
		SwingUtilities.invokeLater(() -> new VerzeichnisZippen());
	}
}