Java记事本

来源：互联网发布：linux 编译动态库编辑：程序博客网时间：2024/06/05 10:41
最近用Centos7学习Linux，但习惯了Windows 10的我完全用不惯Centos7的Vim及Emacs等文本编辑软件，这时候想到不如用Java编个记事本，说干就干，花了一晚上加一下午，就编好了，程序5月29号就编好了，自己试用了大半个月，感觉还不错，看网上也没啥比较完善的Java记事本源码，不如拿出来跟大家交流交流，欢迎提意见，本人大一，难免学艺不精，大家就当做参考吧，源码如下：
import java.awt.*;import java.io.*;import javax.swing.*;import javax.swing.filechooser.*;import java.awt.event.*;import java.net.*;public class MyNotePad {    private JFrame frame;    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    MyNotePad window = new MyNotePad();                    window.frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    public MyNotePad() {        initialize();    }    private void initialize() {        String jarFilePath = this.getClass().getProtectionDomain().getCodeSource().getLocation().getPath();        String[] jarFilePathtemp = jarFilePath.split("/");        jarFilePath = "/";        for (int i = 1; i < jarFilePathtemp.length - 1; i++) {            jarFilePath += jarFilePathtemp[i] + "/";        }        // URL Decoding        try {            jarFilePath = java.net.URLDecoder.decode(jarFilePath, "UTF-8");        } catch (UnsupportedEncodingException e2) {            e2.printStackTrace();        }        File f = new File(jarFilePath + "新建文本文档.txt");        int i = 1;        while (f.exists()) {            f = new File(jarFilePath + "新建文本文档" + String.valueOf(i) + ".txt");            i++;        }        final File path = f.getParentFile();        Toolkit tool = Toolkit.getDefaultToolkit();        Image tubiao = tool.getImage(this.getClass().getResource("/image/jishibentubiao.jpg"));        frame = new JFrame(f.getName() + " - 记事本");        frame.setBounds(100, 100, 800, 800);        frame.setIconImage(tubiao);        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        frame.getContentPane().setLayout(new BorderLayout(0, 0));        try {            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); // 系统风格        } catch (Throwable e) {            e.printStackTrace();        }        JScrollPane scrollPane = new JScrollPane();        frame.getContentPane().add(scrollPane, BorderLayout.CENTER);        JScrollBar gdtheng = scrollPane.getHorizontalScrollBar(); // 获取横向滚动条        gdtheng.setBackground(Color.WHITE);        gdtheng.setForeground(Color.LIGHT_GRAY);        JScrollBar gdtshu = scrollPane.getVerticalScrollBar();// 获取竖向滚动条        gdtshu.setBackground(Color.WHITE);        gdtshu.setForeground(Color.LIGHT_GRAY);        JTextArea textArea = new JTextArea();        textArea.setLineWrap(true);        textArea.setFont(new Font("宋体", Font.PLAIN, 19));        scrollPane.setViewportView(textArea);        JMenuBar menuBar = new JMenuBar();        menuBar.setBackground(Color.WHITE);        menuBar.setFont(new Font("宋体", Font.PLAIN, 20));        frame.setJMenuBar(menuBar);        JMenu mnNewMenu = new JMenu("\u6587\u4EF6(F)");        mnNewMenu.setForeground(Color.BLACK);        mnNewMenu.setFont(new Font("微软雅黑", Font.PLAIN, 15));        menuBar.add(mnNewMenu);        mnNewMenu.setMnemonic(KeyEvent.VK_F);        JMenuItem mntmNewMenuItem = new JMenuItem("\u4FDD\u5B58(S)");// save        mntmNewMenuItem.setForeground(Color.BLACK);        mntmNewMenuItem.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mntmNewMenuItem.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                String jarFilePath = this.getClass().getProtectionDomain().getCodeSource().getLocation().getPath();                String[] jarFilePathtemp = jarFilePath.split("/");                jarFilePath = "/";                for (int i = 1; i < jarFilePathtemp.length - 1; i++) {                    jarFilePath += jarFilePathtemp[i] + "/";                }                String temp = jarFilePath + frame.getTitle();                String[] temp2 = temp.split(" ");                if (temp2[0].equals(jarFilePath + "无标题")) {                    JFileChooser fileChooser = new JFileChooser(); // 选择文件                    FileSystemView fsv = FileSystemView.getFileSystemView();                    fileChooser.setCurrentDirectory(path); // 设置为当前目录                    fileChooser.showOpenDialog(frame); // 显示文件选择框,以frame为容器                    File out = fileChooser.getSelectedFile();                    if (!out.exists()) {                        try {                            out.createNewFile();                        } catch (IOException e) {                            e.printStackTrace();                        }                    }                    try {                        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(out)));                        String text = textArea.getText();                        String[] textout = text.split("\n");                        for (int i = 0; i < textout.length; i++) {                            bw.write(textout[i]);                            bw.newLine();                        }                        frame.setTitle(out.getName());                        bw.close();                    } catch (Exception e) {                        e.printStackTrace();                    }                } else {                    File out;                    try {                        out = new File(URLDecoder.decode(temp2[0], "UTF-8"));// URL解码                        if (!out.exists()) {                            try {                                out.createNewFile();                            } catch (IOException e) {                                e.printStackTrace();                            }                        }                        try {                            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(out)));                            String text = textArea.getText();                            String[] textout = text.split("\n");                            for (int i = 0; i < textout.length; i++) {                                bw.write(textout[i]);                                bw.newLine();                            }                            bw.close();                        } catch (Exception e) {                            e.printStackTrace();                        }                    } catch (UnsupportedEncodingException e1) {                        e1.printStackTrace();                    }                }            }        });        JMenuItem mntmn = new JMenuItem("\u65B0\u5EFA(N)");// new        mntmn.setForeground(Color.BLACK);        mntmn.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mnNewMenu.add(mntmn);        mntmn.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                frame.setTitle("无标题 - 记事本");                textArea.setText(null);            }        });        JMenuItem mntmo = new JMenuItem("\u6253\u5F00(O)...");// open        mntmo.setForeground(Color.BLACK);        mntmo.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mntmo.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                JFileChooser fileChooser = new JFileChooser(); // 选择文件                FileSystemView fsv = FileSystemView.getFileSystemView();                fileChooser.setCurrentDirectory(path); // 设置为当前目录                fileChooser.showOpenDialog(frame); // 显示文件选择框,以frame为容器                File fin = fileChooser.getSelectedFile();                BufferedReader br;                try {                    frame.setTitle(fin.getName() + " - 记事本");                    br = new BufferedReader(new InputStreamReader(new FileInputStream(fin), "utf-8"));                    String temp = null, textin = "";                    while ((temp = br.readLine()) != null) {                        textin += temp;                        textin += "\n";                    }                    textArea.setText(textin);                } catch (UnsupportedEncodingException | FileNotFoundException e1) {                    e1.printStackTrace();                } catch (IOException e1) {                    e1.printStackTrace();                }            }        });        mnNewMenu.add(mntmo);        mnNewMenu.add(mntmNewMenuItem);        JMenuItem mntma = new JMenuItem("\u53E6\u5B58\u4E3A(A)...");// save                                                                    // otherpath        mntma.setForeground(Color.BLACK);        mntma.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mnNewMenu.add(mntma);        mntma.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                JFileChooser fileChooser = new JFileChooser(); // 选择文件                FileSystemView fsv = FileSystemView.getFileSystemView();                fileChooser.setCurrentDirectory(path); // 设置为当前目录                fileChooser.showOpenDialog(frame); // 显示文件选择框,以frame为容器                File out = fileChooser.getSelectedFile();                if (!out.exists()) {                    try {                        out.createNewFile();                    } catch (IOException e) {                        e.printStackTrace();                    }                }                try {                    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(out)));                    String text = textArea.getText();                    String[] textout = text.split("\n");                    for (int i = 0; i < textout.length; i++) {                        bw.write(textout[i]);                        bw.newLine();                    }                    frame.setTitle(out.getName());                    bw.close();                } catch (Exception e) {                    e.printStackTrace();                }            }        });        JMenuItem mntmx = new JMenuItem("\u9000\u51FA(X)");// exit        mntmx.setForeground(Color.BLACK);        mntmx.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mntmx.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                Object[] options = { "确定", "取消" };                int response = JOptionPane.showOptionDialog(frame, "确定退出？", "记事本", JOptionPane.YES_OPTION,                        JOptionPane.DEFAULT_OPTION, null, options, options[0]);                if (response == 0) {                    System.exit(0);                } else if (response == 1) {                }            }        });        mnNewMenu.add(mntmx);        JMenu mno = new JMenu("\u683C\u5F0F(O)");        mno.setForeground(Color.BLACK);        mno.setFont(new Font("微软雅黑", Font.PLAIN, 15));        menuBar.add(mno);        mno.setMnemonic(KeyEvent.VK_O);        JMenu mnNewMenu_1 = new JMenu("\u5E2E\u52A9(H)");        mnNewMenu_1.setForeground(Color.BLACK);        mnNewMenu_1.setFont(new Font("微软雅黑", Font.PLAIN, 15));        menuBar.add(mnNewMenu_1);        mnNewMenu_1.setMnemonic(KeyEvent.VK_H);        JMenuItem mntmNewMenuItem_1 = new JMenuItem("\u5173\u4E8E\u8BB0\u4E8B\u672C(A)");        mntmNewMenuItem_1.setForeground(Color.BLACK);        mntmNewMenuItem_1.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mntmNewMenuItem_1.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                JOptionPane.showMessageDialog(frame, "软件名：记事本\n制作时间：2017年5月29日\n制作人：牧羊人907", "关于“记事本”",                        JOptionPane.PLAIN_MESSAGE);            }        });        mntmNewMenuItem_1.setMnemonic('A');        mnNewMenu_1.add(mntmNewMenuItem_1);        JMenuItem menuItem = new JMenuItem("\u8BF4\u660E");        menuItem.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                JOptionPane.showMessageDialog(frame,                        "Ⅰ、该款记事本由Java编写,支持跨平台使用(实测支持Windows 10、Centos 7)\nⅡ、支持快捷键操作,界面较为美观,功能比较完善\nⅢ、由于开发周期短,难免存在Bug,有任何问题请与作者交流QQ:907097904",                        "“记事本”说明", JOptionPane.PLAIN_MESSAGE);            }        });        mnNewMenu_1.add(menuItem);        JCheckBoxMenuItem chckbxw = new JCheckBoxMenuItem("\u81EA\u52A8\u6362\u884C(W)");        chckbxw.setSelected(true);        chckbxw.setForeground(Color.BLACK);        chckbxw.setFont(new Font("微软雅黑", Font.PLAIN, 15));        // 自动换行        chckbxw.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                textArea.setLineWrap(chckbxw.isSelected());            }        });        chckbxw.setMnemonic('W');        chckbxw.setHorizontalAlignment(SwingConstants.LEFT);        mno.add(chckbxw);        JMenuItem mntmf = new JMenuItem("\u5B57\u4F53(F)...");        mntmf.setForeground(Color.BLACK);        mntmf.setFont(new Font("微软雅黑", Font.PLAIN, 15));        mntmf.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                JFrame tanchu = new JFrame("字体选择");                JComboBox fontList = new JComboBox();                GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();                String[] fonts = ge.getAvailableFontFamilyNames();                DefaultComboBoxModel fontModel = new DefaultComboBoxModel(fonts);                fontList.setModel(fontModel);                fontList.setVisible(true);                tanchu.setBounds(frame.getBounds().x, frame.getBounds().y, 400, 300);                tanchu.getContentPane().setLayout(null);                tanchu.getContentPane().add(fontList);                fontList.setBounds(20, 50, 220, 25);                JLabel label = new JLabel("\u5B57\u4F53");                label.setBounds(20, 25, 50, 25);                tanchu.getContentPane().add(label);                JLabel label_1 = new JLabel("\u98CE\u683C");                label_1.setBounds(20, 75, 72, 25);                tanchu.getContentPane().add(label_1);                JLabel label_2 = new JLabel("\u5B57\u53F7");                label_2.setBounds(20, 125, 72, 25);                tanchu.getContentPane().add(label_2);                JComboBox comboBox = new JComboBox();                comboBox.setModel(new DefaultComboBoxModel(                        new String[] { "\u5E38\u89C4", "\u503E\u659C", "\u7C97\u4F53", "\u7C97\u504F\u659C\u4F53" }));                comboBox.setBounds(20, 100, 80, 25);                tanchu.getContentPane().add(comboBox);                Object[] FontSize = new Object[71];                for (int i = 0; i < 71; i++) {                    FontSize[i] = i + 1;                }                JComboBox comboBox_1 = new JComboBox();                comboBox_1.setBounds(20, 150, 60, 25);                comboBox_1.setModel(new DefaultComboBoxModel(FontSize));                tanchu.getContentPane().add(comboBox_1);                comboBox_1.setSelectedIndex(17);                JButton btnNewButton = new JButton("\u786E\u5B9A");                btnNewButton.setBounds(100, 175, 75, 25);                tanchu.getContentPane().add(btnNewButton);                btnNewButton.addActionListener(new ActionListener() {                    public void actionPerformed(ActionEvent e) {                        String Fontname = fontList.getSelectedItem().toString();                        int FontStyle = comboBox.getSelectedIndex();                        int FontSize = comboBox_1.getSelectedIndex() + 1;                        textArea.setFont(new Font(Fontname, FontStyle, FontSize));                        tanchu.dispose();                    }                });                JButton btnNewButton_1 = new JButton("\u6062\u590D\u9ED8\u8BA4\u503C");                btnNewButton_1.setBounds(190, 175, 113, 25);                tanchu.getContentPane().add(btnNewButton_1);                btnNewButton_1.addActionListener(new ActionListener() {                    public void actionPerformed(ActionEvent e) {                        textArea.setFont(new Font("宋体", 0, 19));                        tanchu.dispose();                    }                });                tanchu.setVisible(true);                tanchu.setDefaultCloseOperation(1);            }        });        mno.add(mntmf);    }}
打包的jar地址也放上吧
链接：http://pan.baidu.com/s/1dFIiiFv 密码：eyv0
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