jartool.java

用JDK中的java.util.jar包做的。目前存在中文文件名的问题.

package util.compress;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class JarTool implements Jar.ProgressListener, ActionListener{
	final static String m_title = "JarTool";
	JFrame frame;
	JButton btnJar, btnUnJar;
	JProgressBar pbProgress;
	
	long processedSize;
	
	public void JarProcessBegin(int totalFiles, long totalSize){
		pbProgress.setMaximum((int)Math.abs(totalSize));
		processedSize = 0;
		frame.setTitle(m_title + " ...");
	}
	public void JarProcess(int totalFiles, long totalSize, long fileSize){
		processedSize += fileSize;
		pbProgress.setValue((int)Math.abs(processedSize));
		// System.out.println(100 * processedSize / totalSize + "%");
		pbProgress.setString(100 * processedSize / totalSize + "%");
		pbProgress.paint(pbProgress.getGraphics());
	}
	public void JarProcessEnd(int totalFiles, long totalSize){
		pbProgress.setValue((int)Math.abs(totalSize));
		pbProgress.setValue(0);
		JOptionPane.showMessageDialog(null, "Completed!");
		frame.setTitle(m_title);
	}
	
	void doCompress(){
	    JFileChooser chooser = new JFileChooser();
	    chooser.setDialogTitle("Choose files to compress");
	    chooser.setMultiSelectionEnabled(true);
	    chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
	    int returnVal = chooser.showOpenDialog(frame);
	    if(returnVal == JFileChooser.APPROVE_OPTION) {
	    	JFileChooser fcSave = new JFileChooser();
	    	fcSave.setDialogTitle("Specify a file to save");
	    	int ret = fcSave.showSaveDialog(frame);
	    	if (ret == JFileChooser.APPROVE_OPTION) {
	    		Jar compresser = new Jar();
	    		compresser.addProgressListener(this);
	    		compresser.jar(chooser.getSelectedFiles(), fcSave.getSelectedFile());
			}
	    }
 	}
	
	void doDeCompress(){
	    JFileChooser chooser = new JFileChooser();
	    chooser.setDialogTitle("Choose a zip/jar file:");
	    int returnVal = chooser.showOpenDialog(frame);
	    if(returnVal == JFileChooser.APPROVE_OPTION) {
	    	JFileChooser fcSave = new JFileChooser();
	    	fcSave.setDialogTitle("Choose a directory for decompressed files:");
	    	fcSave.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
	    	int ret = fcSave.showSaveDialog(frame);
	    	if (ret == JFileChooser.APPROVE_OPTION) {
	    		Jar deCompresser = new Jar();
	    		deCompresser.addProgressListener(this);
	    		deCompresser.unJar(chooser.getSelectedFile(), fcSave.getSelectedFile());
			}
	    }
	}
	
	public void actionPerformed(ActionEvent ae){
		if (ae.getSource() == btnJar) doCompress();
		else if (ae.getSource() == btnUnJar) doDeCompress();
			
	}
	
	public JarTool(){
		processedSize = 0;
		initFrame();
	}
	
	public void initFrame(){
		frame = new JFrame("Jar tool");
		btnJar = new JButton("Compress");
		btnUnJar = new JButton("Decompress");
		btnJar.addActionListener(this);
		btnUnJar.addActionListener(this);
		pbProgress = new JProgressBar();
		pbProgress.setStringPainted(true);
		
		JPanel pane = (JPanel)frame.getContentPane();
		pane.setLayout(new BorderLayout());
		pane.add(pbProgress, BorderLayout.CENTER);
		JPanel btnContainer = new JPanel();
		btnContainer.add(btnJar);
		btnContainer.add(btnUnJar);
		pane.add(btnContainer, BorderLayout.SOUTH);
		
		frame.pack();
		frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
	
	public static void main(String[] args){
		TestJar test = new TestJar();
	}
}