java 实现简单的记事本.docVIP

1、 主窗体package com.iflysse.week2;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Font;import java.awt.GraphicsEnvironment;import java.awt.Toolkit;import java.awt.datatransfer.Clipboard;import java.awt.datatransfer.DataFlavor;import java.awt.datatransfer.StringSelection;import java.awt.datatransfer.Transferable;import java.awt.datatransfer.UnsupportedFlavorException;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.InputEvent;import java.awt.event.KeyEvent;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.io.File;import java.io.IOException;import javax.swing.ButtonGroup;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JCheckBoxMenuItem;import javax.swing.JColorChooser;import javax.swing.JComboBox;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JMenuItem;import javax.swing.JOptionPane;import javax.swing.JPopupMenu;import javax.swing.JRadioButtonMenuItem;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JToolBar;import javax.swing.KeyStroke;import javax.swing.event.CaretEvent;import javax.swing.event.CaretListener;import javax.swing.undo.UndoManager;public class FileEditor extends JFrame implements ActionListener, CaretListener private JMenuBar jMenuBar;private JMenu jMenu_file, jMenu_edit, jMenu_format, jMenu_help;private JMenuItem item_new, item_open, item_save, item_saveAs, item_print,item_exit;private JMenuItem item_cut, item_copy, item_paste, item_delete, item_all,item_back;private JMenuItem item_newLine, item_font, item_color;private JMenuItem item_userGuide, item_authorInfo;private JCheckBoxMenuItem jcb_bold, jcb_italic;private JRadioButtonMenuItem jrb_black, jrb_red, jrb_green, jrb_pink;private JMenu jMenu_font, jMenu_color;private JComboBox jComboBox_fFamily, jComboBox_fSize;private JToolBar jToolBar;/ 工具栏private JPopupMenu jPopupMenu;/ 弹出菜单菜单项private JMenuItem item_cut_p, item_copy_p, item_paste_p, item_delete_p,item_all_p, item_back_p;private JScrollPane jScrollPane;private JTextArea jTextArea;private JFileChooser jFileChooser;private Clipboard cb;/ java 剪切板private UndoManager undo;/ 撤销管理private String board = ;private boolean wrapLine = false;private int dot;/ private JFileDialog jFileDialog;/* * 简单的文本编辑器 * * param args */public static void main(String args) new FileEditor();public FileEditor() initComponents2();initComponents();showjPopupMenu();EnabledComponents();/ Init Compomentspublic void initComponents() cb = Toolkit.getDefaultToolkit().getSystemClipboard();jMenuBar = new JMenuBar();/ JMenu jMenu_file,jMenu_edit,jMenu_format,jMneu_help;jMenu_file = new JMenu(文件);jMenu_edit = new JMenu(编辑);jMenu_help = new JMenu(帮助);jMenu_format = new JMenu(格式);jMenuBar.add(jMenu_file);jMenuBar.add(jMenu_edit);jMenuBar.add(jMenu_format);jMenuBar.add(jMenu_help);/ JMenuItem/ item_new,item_open,item_save,item_saveAs,item_print,item_exit;item_new = new JMenuItem(新建(N);item_open = new JMenuItem(打开(O);item_save = new JMenuItem(保存(S);item_saveAs = new JMenuItem(另存为(A).);item_print = new JMenuItem(打印(P);item_exit = new JMenuItem(退出(X);/ 快捷键KeyStroke keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK);/ item_new.setMnemonic(KeyEvent.VK_N);item_new.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK);item_open.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK);item_save.setAccelerator(keyStroke);item_saveAs.setMnemonic(KeyEvent.VK_A);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_P, InputEvent.CTRL_MASK);item_print.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_E, InputEvent.CTRL_MASK);item_exit.setAccelerator(keyStroke);/ 事件监听item_new.addActionListener(this);item_open.addActionListener(this);item_save.addActionListener(this);item_saveAs.addActionListener(this);item_print.addActionListener(this);item_exit.addActionListener(this);jMenu_file.add(item_new);/ jMenu_file.addSeparator();jMenu_file.add(item_open);/ jMenu_file.addSeparator();jMenu_file.add(item_save);/ jMenu_file.addSeparator();jMenu_file.add(item_saveAs);jMenu_file.addSeparator();jMenu_file.add(item_print);jMenu_file.addSeparator();jMenu_file.add(item_exit);/ JMenuItem item_cut,item_copy,item_paste,item_delete;item_cut = new JMenuItem(剪切(X);item_copy = new JMenuItem(复制(C);item_paste = new JMenuItem(粘贴(V);item_delete = new JMenuItem(删除);item_all = new JMenuItem(全选(A);item_back = new JMenuItem(撤销(Z);/ 快捷键keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_MASK);item_back.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK);item_cut.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK);item_copy.setAccelerator(keyStroke);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK);item_paste.setAccelerator(keyStroke);/ keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,InputEvent.);/ ?item_delete.setMnemonic(KeyEvent.VK_DELETE);item_delete.setAccelerator(KeyStroke.getKeyStroke(Delete);keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.CTRL_MASK);item_all.setAccelerator(keyStroke);/ 事件监听item_back.addActionListener(this);item_cut.addActionListener(this);item_copy.addActionListener(this);item_paste.addActionListener(this);item_delete.addActionListener(this);item_all.addActionListener(this);jMenu_edit.add(item_back);jMenu_edit.add(item_cut);jMenu_edit.addSeparator();jMenu_edit.add(item_copy);jMenu_edit.addSeparator();jMenu_edit.add(item_paste);jMenu_edit.addSeparator();jMenu_edit.add(item_delete);jMenu_edit.add(item_all);/ JMenuItem item_newLine,item_font;item_newLine = new JMenuItem(自动换行);item_font = new JMenuItem(字体.);item_color = new JMenuItem(颜色面板);/ 事件监听item_newLine.addActionListener(this);item_font.addActionListener(this);item_color.addActionListener(this);jMenu_format.add(item_newLine);jMenu_format.addSeparator();jMenu_format.add(jMenu_font);jMenu_format.add(item_font);jMenu_format.addSeparator();jMenu_format.add(jMenu_color);jMenu_format.add(item_color);/ JMenuItem item_userGuide,item_authorInfo;item_userGuide = new JMenuItem(使用手册);item_authorInfo = new JMenuItem(作者信息);item_userGuide.addActionListener(this);item_authorInfo.addActionListener(this);jMenu_help.add(item_userGuide);jMenu_help.addSeparator();jMenu_help.add(item_authorInfo);/ JTextArea jTextArea;jTextArea = new JTextArea();/ jTextArea.setSize(int)this.getSize().getWidth(),(int)this.getSize().getHeight();/ JScrollPane jScrollPane;jScrollPane = new JScrollPane(jTextArea);/ jScrollPane.add(jTextArea);initRoot();/ 弹出菜单public void showjPopupMenu() / 弹出菜单jPopupMenu = new JPopupMenu();item_cut_p = new JMenuItem(剪切(X);item_copy_p = new JMenuItem(复制(C);item_paste_p = new JMenuItem(粘贴(V);item_delete_p = new JMenuItem(删除);item_all_p = new JMenuItem(全选(A);item_back_p = new JMenuItem(撤销(Z);/ 快捷键item_back_p.setMnemonic(KeyEvent.VK_Z);item_cut_p.setMnemonic(KeyEvent.VK_C);item_copy_p.setMnemonic(KeyEvent.VK_DELETE);item_paste_p.setMnemonic(KeyEvent.VK_DELETE);item_delete_p.setMnemonic(KeyEvent.VK_DELETE);item_all_p.setMnemonic(KeyEvent.VK_DELETE);/ 事件监听item_back_p.addActionListener(this);item_cut_p.addActionListener(this);item_copy_p.addActionListener(this);item_paste_p.addActionListener(this);item_delete_p.addActionListener(this);item_all_p.addActionListener(this);jPopupMenu.add(item_back_p);jPopupMenu.add(item_cut_p);jPopupMenu.addSeparator();jPopupMenu.add(item_copy_p);jPopupMenu.addSeparator();jPopupMenu.add(item_paste_p);jPopupMenu.addSeparator();jPopupMenu.add(item_delete_p);jPopupMenu.add(item_all_p);/ 文本区域添加弹出菜单jTextArea.add(jPopupMenu);/ 设置文本区域的鼠标事件监听，右键弹出菜单jTextArea.addMouseListener(new MouseAdapter() public void mouseClicked(MouseEvent e) if (e.getModifiers() = MouseEvent.BUTTON3_MASK) jPopupMenu.show(jTextArea, e.getX(), e.getY(););/* * 二级JMenu、三级选项及JComboBox的初始化 * 使用实现ActionListener接口的自定义内部类MyActionListener监听事件 */public void initComponents2() MyActionListener listener = new MyActionListener();/ JMenu jMenu_font,jMenu_color;jMenu_font = new JMenu(字形);jMenu_color = new JMenu(颜色);/ JCheckBoxMenuItem jcb_bold,jcb_italic;jcb_bold = new JCheckBoxMenuItem(加粗);jcb_italic = new JCheckBoxMenuItem(倾斜);jcb_bold.addActionListener(listener);jcb_italic.addActionListener(listener);jMenu_font.add(jcb_bold);jMenu_font.add(jcb_italic);/ JRadioButtonMenuItem jrb_black,jrb_red,jrb_green,jrb_pink;jrb_black = new JRadioButtonMenuItem(黑色);jrb_red = new JRadioButtonMenuItem(红色);jrb_green = new JRadioButtonMenuItem(绿色);jrb_pink = new JRadioButtonMenuItem(粉红色);ButtonGroup bg = new ButtonGroup();bg.add(jrb_black);bg.add(jrb_red);bg.add(jrb_green);bg.add(jrb_pink);jrb_black.addActionListener(listener);jrb_red.addActionListener(listener);jrb_green.addActionListener(listener);jrb_pink.addActionListener(listener);jMenu_color.add(jrb_black);jMenu_color.add(jrb_red);jMenu_color.add(jrb_green);jMenu_color.add(jrb_pink);/ JComboBox jComboBox_fFamily,jComboBox_fSize;String fontStyles = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();String fontSizes = 10, 15, 20, 30, 40, 50, 60, 70,80, 90 ;jComboBox_fFamily = new JComboBox(fontStyles);jComboBox_fSize = new JComboBox(fontSizes);jComboBox_fFamily.addActionListener(listener);jComboBox_fSize.addActionListener(listener);/ jMenu_font.add(jComboBox_fFamily);jToolBar = new JToolBar();jToolBar.setBackground(Color.PINK);jToolBar.add(jComboBox_fFamily);jToolBar.add(jComboBox_fSize);/ 初始化根面板public void initRoot() this.setJMenuBar(jMenuBar);this.setLayout(new BorderLayout();this.add(jScrollPane, BorderLayout.CENTER);this.add(jToolBar, BorderLayout.NORTH);this.setSize(500, 600);this.setVisible(true);this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);this.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)/ 保存提示if (jTextArea.getText().length() 0) int option = JOptionPane.showConfirmDialog(null, 是否保存文本？,提示信息, JOptionPane.WARNING_MESSAGE);if (option = JOptionPane.YES_OPTION) saveFileOpt();/ 文本域重置jTextArea.setText();System.exit(0); else if (option = JOptionPane.CANCEL_OPTION) option= JOptionPane.showConfirmDialog(null, 确认退出？,提示信息, JOptionPane.WARNING_MESSAGE);if(option=JOptionPane.OK_OPTION)System.exit(0);elseSystem.exit(0););this.displayCenter();/ 个性化this.setTitle(简单记事本);this.setIconImage(new ImageIcon(this.getClass().getClassLoader().getResource(tabs/test4.jpg).getImage();jTextArea.setBackground(Color.WHITE);jTextArea.setForeground(Color.PINK);jTextArea.setSelectedTextColor(Color.RED);jTextArea.setSelectionColor(Color.decode(#D6D7A0);jTextArea.setFont(new Font(宋体,0,20);/设置文本区初始字体/ 撤销操作undo = new UndoManager();jTextArea.getDocument().addUndoableEditListener(undo);/ 监听CaretListenerjTextArea.addCaretListener(this);/ 屏蔽部分菜单的事件响应public void EnabledComponents() / JMenuItem item_cut,item_copy,item_paste,item_delete,item_all;if (jTextArea.getSelectedText() = null) item_cut.setEnabled(false);item_copy.setEnabled(false);item_delete.setEnabled(false);item_all.setEnabled(true);item_cut_p.setEnabled(false);item_copy_p.setEnabled(false);item_delete_p.setEnabled(false);item_all_p.setEnabled(true); else if (jTextArea.getSelectedText() != null) item_cut.setEnabled(true);item_copy.setEnabled(true);item_delete.setEnabled(true);item_all.setEnabled(false);item_cut_p.setEnabled(true);item_copy_p.setEnabled(true);item_delete_p.setEnabled(true);item_all_p.setEnabled(false);/ 若剪贴板不为空可粘贴try Transferable content = cb.getContents(null);String s = (String) content.getTransferData(DataFlavor.stringFlavor);if (s != null) item_paste_p.setEnabled(true);item_paste.setEnabled(true); else item_paste_p.setEnabled(false);item_paste.setEnabled(false); catch (UnsupportedFlavorException e) showToastInfo(剪贴板出错啦！, 3); catch (IOException e) showToastInfo(剪贴板出错啦！, 3);/ 面板居中显示public void displayCenter() Toolkit toolkit = Toolkit.getDefaultToolkit();int x = (toolkit.getScreenSize().width - this.getSize().width) / 2;int y = (toolkit.getScreenSize().height - this.getSize().height) / 2;this.setLocation(x, y);Overridepublic void actionPerformed(ActionEvent arg0) String str = arg0.getActionCommand().toString();/ 新建操作if (str.equals(新建(N) / 保存提示if (jTextArea.getText().length() 0) int option = JOptionPane.showConfirmDialog(null, 是否保存文本？,提示信息, JOptionPane.WARNING_MESSAGE);if (option = JOptionPane.YES_OPTION) saveFileOpt();/ 文本域重置jTextArea.setText(); else if (option = JOptionPane.CANCEL_OPTION| option = JOptionPane.NO_OPTION) / DO Nothingif (str.equals(打开(O) openFileOpt();System.out.println(str);if (str.equals(保存(S) | str.equals(另存为(A).) saveFileOpt();/ else if(str.equals(另存为(A).)/ if (str.equals(打印(P) showToastInfo(无打印机！, 3);if (str.equals(退出(X) this.dispose();System.exit(0);/ 撤销操作if (str.equals(撤销(Z) undo.undo();if (str.equals(剪切(X) String copy = jTextArea.getSelectedText();if (copy != null & copy.length() 0) board = copy;cb.setContents(new StringSelection(board), null);jTextArea.replaceRange(, jTextArea.getSelectionStart(),jTextArea.getSelectionEnd();showToastInfo(文本已剪切！, 1); else showToastInfo(未选择文本！, 2);if (str.equals(复制(C) String copy = jTextArea.getSelectedText();if (copy != null & copy.length() 0) board = copy;cb.setContents(new StringSelection(board), null);showToastInfo(文本已复制！, 1); else showToastInfo(未选择文本！, 2);if (str.equals(粘贴(V) try Transferable content = cb.getContents(null);String s = (String) content.getTransferData(DataFlavor.stringFlavor);jTextArea.replaceRange(s, jTextArea.getSelectionStart(),jTextArea.getSelectionEnd(); catch (Exception e) e.printStackTrace();if (str.equals(删除) String copy = jTextArea.getSelectedText();if (copy != null & copy.length() 0) jTextArea.replaceRange(, jTextArea.getSelectionStart(),jTextArea.getSelectionEnd();showToastInfo(删除成功！, 1); elseshowToastInfo(未选择文本！, 2);if (str.equals(全选(A) jTextArea.setSelectionStart(0);jTextArea.setSelectionEnd(jTextArea.getText().trim().length();if (str.equals(自动换行) if (wrapLine) wrapLine = false;jTextArea.setLineWrap(false); else wrapLine = true;jTextArea.setLineWrap(true);if (str.equals(字体.) if (str.equals(颜色面板) jTextArea.setForeground(JColorChooser.showDialog(jTextArea, 颜色选择,Color.BLACK);if (str.equals(使用手册) try Runtime.getRuntime().exec(cmd /c start ); catch (IOException e) showToastInfo(无法访问指定网址！, 3);if (str.equals(作者信息) showAuthorInfoJFrame();public void showToastInfo(String msg, int type) if (type = 1)type = JOptionPane.INFORMATION_MESSAGE;else if (type = 2)type = JOptionPane.WARNING_MESSAGE;elsetype = JOptionPane.ERROR_MESSAGE;JOptionPane.showMessageDialog(null, msg, 提示信息, type);/ 作者信息面板public void showAuthorInfoJFrame() final JFrame jFrame = new JFrame(作者信息);jFrame.setSize(170, 200);jFrame.setLayout(new BorderLayout();String info = 讯飞直通车第二期Java2班蒋庆意+ TimeUtil.getCurrentTime() + (安徽农业大学 10网络工程);jFrame.add(new JLabel(info), BorderLayout.CENTER);JButton jbtn = new JButton(关闭);jbtn.addActionListener(new ActionListener() Overridepublic void actionPerformed(Acti