package swing.zip; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.FileInputStream; import java.util.List; import java.util.Scanner; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import javax.swing.JComboBox; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.SwingUtilities; import javax.swing.SwingWorker; /*2015-7-8*/ public class ZipTest { public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { ZipTestFrame frame = new ZipTestFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); frame.setLocationRelativeTo(null); } }); } } class ZipTestFrame extends JFrame { private static final long serialVersionUID = 1L; public static final int DEFAULT_WIDTH = 400; public static final int DEFAULT_HEIGHT = 400; private JComboBox filecomBox; private JTextArea fileText; private String zipName; public ZipTestFrame() { setTitle("ZipTest"); setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT); JMenuBar menuBar = new JMenuBar(); JMenu menu = new JMenu("File"); JMenuItem openItem = new JMenuItem("Open"); menu.add(openItem); openItem.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); chooser.setCurrentDirectory(new File(".")); int r = chooser.showOpenDialog(ZipTestFrame.this); if (r == JFileChooser.APPROVE_OPTION) { zipName = chooser.getSelectedFile().getPath(); filecomBox.removeAllItems(); scanZipFile(); } } }); JMenuItem exitItem = new JMenuItem("Exit"); menu.add(exitItem); exitItem.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.exit(0); } }); menuBar.add(menu); setJMenuBar(menuBar); fileText = new JTextArea(); filecomBox = new JComboBox(); filecomBox.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { loadZipFile((String) filecomBox.getSelectedItem()); } }); add(filecomBox, BorderLayout.SOUTH); add(new JScrollPane(fileText), BorderLayout.CENTER); } protected void loadZipFile(final String name) { filecomBox.setEnabled(false); fileText.setText(""); new SwingWorker<Void, Void>() { @Override protected Void doInBackground() throws Exception { ZipInputStream zin = new ZipInputStream(new FileInputStream(zipName)); ZipEntry entry; while ((entry = zin.getNextEntry()) != null) { if (entry.getName().equals(name)) { Scanner in = new Scanner(zin); while (in.hasNextLine()) { fileText.append(in.nextLine()); fileText.append("\n"); } } zin.closeEntry(); } zin.close(); return null; } @Override protected void done() { filecomBox.setEnabled(true); } }.execute(); } protected void scanZipFile() { new SwingWorker<Void, String>() { @Override protected Void doInBackground() throws Exception { ZipInputStream zin = new ZipInputStream(new FileInputStream(zipName)); ZipEntry entry; while ((entry = zin.getNextEntry()) != null) { publish(entry.getName()); zin.closeEntry(); } zin.close(); return null; } @Override protected void process(List<String> chunks) { for (String chunk : chunks) { filecomBox.addItem(chunk); } } }.execute(); } }
时间: 2024-10-12 19:03:22