compressframe.java~34~

文件压缩功能：压缩指定单个文件

package zipCompress;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import java.util.*;
import java.io.File;
import java.sql.Timestamp;
import java.io.*;
import java.util.zip.ZipFile;
import java.util.zip.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class CompressFrame
    extends JFrame {
  //自定义变量：
  String currentDirectory="." ; //当前工作目录
  ArrayList fileList = new ArrayList(20); //存储当前目录下的所有文件的对应文件对象
  FileTableModel tableModel;
  JTable fileTable;
  File workDirectory;

  JPanel contentPane;
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu jMenuFile = new JMenu();
  JMenuItem jMenuFileExit = new JMenuItem();
  JMenu jMenuHelp = new JMenu();
  JMenuItem jMenuHelpAbout = new JMenuItem();
  JToolBar jToolBar = new JToolBar();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  ImageIcon image1;
  ImageIcon image2;
  ImageIcon image3;
  JLabel statusBar = new JLabel();
  BorderLayout borderLayout1 = new BorderLayout();
  JMenuItem jMenuItemCD = new JMenuItem();
  JMenuItem jMenuItemDelete = new JMenuItem();
  JMenuItem jMenuItemRename = new JMenuItem();
  JMenu jMenuCommand = new JMenu();
  JMenuItem jMenuItemCompress = new JMenuItem();
  JMenuItem jMenuItemExtract = new JMenuItem();
  JMenuItem jMenuItemInfor = new JMenuItem();
  JPanel jPanel1 = new JPanel();
  BorderLayout borderLayout2 = new BorderLayout();
  JPanel jPanel2 = new JPanel();
  BorderLayout borderLayout3 = new BorderLayout();
  JTextField directoryFeild = new JTextField();
  JButton jButton4 = new JButton();
  JPanel jPanel3 = new JPanel();
  BorderLayout borderLayout4 = new BorderLayout();
  JScrollPane jScrollPane1 = new JScrollPane();
  JButton jButton5 = new JButton();
  JButton jButton6 = new JButton();
  JButton jButton7 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton8 = new JButton();
  JButton jButton9 = new JButton();

  //Construct the frame
  public CompressFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    contentPane = (JPanel)this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Java Compress Utility");
    statusBar.setToolTipText("");
    statusBar.setText(" 欢迎使用java压缩工具");
    jMenuFile.setText("文件");
    jMenuFileExit.setText("退出");
    jMenuFileExit.addActionListener(new
                                    ComptessFrame_jMenuFileExit_ActionAdapter(this));
    jMenuHelp.setText("帮助");
    jMenuHelpAbout.setActionCommand("about");
    jMenuHelpAbout.setText("关于...");
    jMenuHelpAbout.addActionListener(new
                                     ComptessFrame_jMenuHelpAbout_ActionAdapter(this));
    jButton1.setIcon(new ImageIcon(CompressFrame.class.getResource("cd5.png")));
    jButton1.addActionListener(new ComptessFrame_jButton1_actionAdapter(this));
    jButton1.setToolTipText("更换工作目录");
    jButton2.setIcon(new ImageIcon(CompressFrame.class.getResource("delete.png")));
    jButton2.setText("");
    jButton2.addActionListener(new ComptessFrame_jButton2_actionAdapter(this));
    jButton2.setMaximumSize(new Dimension(45, 43));
    jButton2.setToolTipText("删除选定文件");
    jMenuItemCD.setToolTipText("改变工作目录");
    jMenuItemCD.setActionCommand("cd");
    jMenuItemCD.setText("工作目录");
    jMenuItemCD.addActionListener(new ComptessFrame_jMenuItemCD_actionAdapter(this));
    jMenuItemDelete.setToolTipText("删除选定的定文件");
    jMenuItemDelete.setActionCommand("delete");
    jMenuItemDelete.setText("删除");
    jMenuItemDelete.addActionListener(new ComptessFrame_jMenuItemDelete_actionAdapter(this));
    jMenuItemRename.setToolTipText("重命名选定的文件");
    jMenuItemRename.setActionCommand("rename");
    jMenuItemRename.setText("重命名");
    jMenuItemRename.addActionListener(new ComptessFrame_jMenuItemRename_actionAdapter(this));
    jMenuCommand.setToolTipText("");
    jMenuCommand.setActionCommand("");
    jMenuCommand.setText("命令");
    jMenuItemCompress.setToolTipText("压缩选定的文件");
    jMenuItemCompress.setActionCommand("compress");
    jMenuItemCompress.setText("压缩");
    jMenuItemCompress.addActionListener(new CompressFrame_jMenuItemCompress_actionAdapter(this));
    jMenuItemExtract.setToolTipText("解压选定的zip文件");
    jMenuItemExtract.setActionCommand("extract");
    jMenuItemExtract.setText("解压缩");
    jMenuItemExtract.setArmed(false);
    jMenuItemExtract.addActionListener(new CompressFrame_jMenuItemExtract_actionAdapter(this));
    jMenuItemInfor.setToolTipText("察看压缩比等信息i");
    jMenuItemInfor.setActionCommand("infor");
    jMenuItemInfor.setText("信息");
    jMenuItemInfor.addActionListener(new CompressFrame_jMenuItemInfor_actionAdapter(this));
    jPanel1.setLayout(borderLayout2);
    jPanel2.setLayout(borderLayout3);
    jButton4.setToolTipText("返回上一级目录");
    jButton4.setActionCommand("jButton4");
    jButton4.setIcon(new ImageIcon(CompressFrame.class.getResource(
        "arrow-up.png")));
    jButton4.setText("");
    jButton4.addActionListener(new ComptessFrame_jButton4_actionAdapter(this));
    jPanel3.setLayout(borderLayout4);
    directoryFeild.setToolTipText("当前工作目录");
    directoryFeild.setEditable(false);
    directoryFeild.setText("");
    jButton5.setAlignmentY( (float) 0.5);
    jButton5.setToolTipText("压缩选定文件");
    jButton5.setIcon(new ImageIcon(CompressFrame.class.getResource("ark2.png")));
    jButton5.setText("");
    jButton5.addActionListener(new ComptessFrame_jButton5_actionAdapter(this));
    jButton6.setMaximumSize(new Dimension(45, 43));
    jButton6.setMinimumSize(new Dimension(45, 43));
    jButton6.setToolTipText("解压缩指定文件");
    jButton6.setIcon(new ImageIcon(CompressFrame.class.getResource(
        "extract2.png")));
    jButton6.setMargin(new Insets(2, 14, 2, 14));
    jButton6.setText("");
    jButton6.addActionListener(new CompressFrame_jButton6_actionAdapter(this));
    jButton7.setToolTipText("查看压缩文件信息");
    jButton7.setIcon(new ImageIcon(CompressFrame.class.getResource("info.png")));
    jButton7.setText("");
    jButton7.addActionListener(new CompressFrame_jButton7_actionAdapter(this));
    jButton3.setToolTipText("重命名文件");
    jButton3.setHorizontalTextPosition(SwingConstants.TRAILING);
    jButton3.setIcon(new ImageIcon(CompressFrame.class.getResource("rename.png")));
    jButton3.setText("");
    jButton3.addActionListener(new ComptessFrame_jButton3_actionAdapter(this));
    jButton8.setToolTipText("帮助");
    jButton8.setIcon(new ImageIcon(CompressFrame.class.getResource("help.png")));
    jButton8.setText("");
    jButton8.addActionListener(new ComptessFrame_jButton8_actionAdapter(this));
    jButton9.setToolTipText("刷新");
    jButton9.setIcon(new ImageIcon(CompressFrame.class.getResource("reload.png")));
    jButton9.setText("");
    jButton9.setVerticalAlignment(javax.swing.SwingConstants.CENTER);
    jButton9.addActionListener(new CompressFrame_jButton9_actionAdapter(this));
    jMenuFile.add(jMenuItemCD);
    jMenuFile.addSeparator();
    jMenuFile.add(jMenuItemDelete);
    jMenuFile.add(jMenuItemRename);
    jMenuFile.addSeparator();
    jMenuFile.add(jMenuFileExit);
    jMenuHelp.add(jMenuHelpAbout);
    jMenuBar1.add(jMenuFile);
    jMenuBar1.add(jMenuCommand);
    jMenuBar1.add(jMenuHelp);
    this.setJMenuBar(jMenuBar1);
    contentPane.add(jToolBar, BorderLayout.NORTH);
    contentPane.add(statusBar, BorderLayout.SOUTH);
    contentPane.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jPanel2, BorderLayout.NORTH);
    jPanel2.add(directoryFeild, BorderLayout.CENTER);
    jPanel2.add(jButton4, BorderLayout.WEST);
    jPanel1.add(jPanel3, BorderLayout.CENTER);
    jPanel3.add(jScrollPane1, BorderLayout.CENTER);
    /***********************FileTable初始化*******************************/
    initializeFileList(); //首先初始化ArrayList
    tableModel = new FileTableModel();
    fileTable = new JTable(tableModel);
    //设置双击则打开文件夹事件：
    fileTable.addMouseListener(new ComptessFrame_fileTable_mouseAdapter(this));

    jScrollPane1.getViewport().add(fileTable, null);
    jMenuCommand.add(jMenuItemCompress);
    jMenuCommand.add(jMenuItemExtract);
    jMenuCommand.addSeparator();
    jMenuCommand.add(jMenuItemInfor);
    jToolBar.add(jButton5, null);
    jToolBar.add(jButton6, null);
    jToolBar.add(jButton7, null);
    jToolBar.add(jButton9, null);
    jToolBar.add(jButton1);
    jToolBar.add(jButton3, null);
    jToolBar.add(jButton2);
    jToolBar.add(jButton8, null);
  }

  /*************************初始化ArrayList*******************************/
  private void initializeFileList() {
    fileList.clear();
    workDirectory = new File(currentDirectory);
    this.directoryFeild.setText(workDirectory.getAbsolutePath());
    this.currentDirectory = workDirectory.getAbsolutePath();
    File[] children = workDirectory.listFiles();
    for (int i = 0; i < children.length; i++) {
      fileList.add(children[i]);
    }
  }
 /**********用于与CompressDialog和ExtractDialog交互*****************/
public File[] getFilesSelected(){
  int[] rowsSelected=fileTable.getSelectedRows();
  File[] temp=new File[rowsSelected.length];
  for(int i=0;i<rowsSelected.length;i++){
    temp[i]=(File)fileList.get(rowsSelected[i]);
  }
  return temp;
}

public String getCurrentDirectry(){
   return this.currentDirectory;
}
public void reDisplay(){
  this.tableModel.fireTableDataChanged();
 }
  //File | Exit action performed
  public void jMenuFileExit_actionPerformed(ActionEvent e) {
    System.exit(0);
  }

  //Help | About action performed
  public void jMenuHelpAbout_actionPerformed(ActionEvent e) {
    CompressFrame_AboutBox dlg = new CompressFrame_AboutBox(this);
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation( (frmSize.width - dlgSize.width) / 2 + loc.x,
                    (frmSize.height - dlgSize.height) / 2 + loc.y);
    dlg.setModal(true);
    dlg.pack();
    dlg.show();
  }

  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      jMenuFileExit_actionPerformed(null);
    }
  }

  //表格数据模型类，利用主类的ArrayList做缓冲：
  private class FileTableModel
      extends AbstractTableModel {
    public String getColumnName(int column) {
      if (column == 0) {
        return "文件名";
      }
      else if (column == 1) {
        return "类型";
      }
      else if (column == 2) {
        return "大小";
      }
      else { //column=3
        return "最后修改时间";
      }
    }

    public int getColumnCount() {
      return 4;
    }

    public int getRowCount() {
      return fileList.size();
    }

    public Object getValueAt(int row, int column) {
      File file = (File) fileList.get(row);
      if (column == 0) {
        return file.getName();
      }
      if (column == 1) {
        return file.isDirectory() ? "文件夹" : "文件";
      }
      if (column == 2) {
        if (file.isDirectory()) {
          return "";
        }
        long size = file.length();
        long kb = size / 1024;
        if (kb < 1024) {
          return kb + "KB";
        }
        return kb / 1024 + "MB";
      }
      if (column == 3) {
        long ms = file.lastModified();
        Timestamp timestamp = new Timestamp(ms);
        return timestamp;
      }
      return null;
    }
  }

  void jButton4_actionPerformed(ActionEvent e) {
    currentDirectory = workDirectory.getAbsolutePath();
    int lastIndex = currentDirectory.lastIndexOf('\\');
    if (lastIndex != -1 && lastIndex != currentDirectory.length()) {
      currentDirectory = currentDirectory.substring(0, lastIndex);
    }
    if (currentDirectory.indexOf('\\') == -1) { //到达根目录
      currentDirectory += "\\";
    }
    this.initializeFileList();
    tableModel.fireTableDataChanged();
  }

  void fileTable_mouseClicked(MouseEvent e) {
    if (e.getClickCount() != 2) { //不是双击，则返回
      return;
    }
    int rowClicked = fileTable.getSelectedRow(); //双击时行被默认选中
    File fileMapped = (File) fileList.get(rowClicked); //利用表格与ArrayList内容的对应关系
    if (fileMapped.isDirectory() == false) { //未双击文件夹
      if(fileMapped.getName().endsWith(".zip")){
        this.extract();
      }
      return;
    }
    currentDirectory = fileMapped.getAbsolutePath();
    this.initializeFileList();
    this.tableModel.fireTableDataChanged();
  }
  private void deleteFiles(){
    int[] rowSelected = fileTable.getSelectedRows();
    if (rowSelected == null || rowSelected.length == 0) {
      return;
    }
    int choice = JOptionPane.showConfirmDialog(this, "确认删除所选文件吗？", "",
                                               JOptionPane.OK_CANCEL_OPTION);
    File temp;
    if (choice == JOptionPane.OK_OPTION) {
      for (int i = 0; i < rowSelected.length; i++) {
        temp = (File) fileList.get(rowSelected[i]);
        if (!temp.delete()) {
          JOptionPane.showMessageDialog(this,
                                        "无法删除文件：\n" + temp.getAbsolutePath() +
                                        "\n请确认文件夹非空或文件未被使用",
                                        "删除文件出错", JOptionPane.ERROR_MESSAGE);
        }
      }
      this.initializeFileList();
      tableModel.fireTableDataChanged();
    }
  }
  void jButton2_actionPerformed(ActionEvent e) {
    this.deleteFiles();
  }

  void jMenuItemDelete_actionPerformed(ActionEvent e) {
  this.deleteFiles();
  }

  private void changeDirectory(){
    JFileChooser chooser = new JFileChooser();
    chooser.setCurrentDirectory(workDirectory);
    chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);