{"id":222497,"date":"2024-05-11T18:59:48","date_gmt":"2024-05-11T10:59:48","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/222497.html"},"modified":"2024-05-11T18:59:59","modified_gmt":"2024-05-11T10:59:59","slug":"%e5%a6%82%e4%bd%95%e7%94%a8java%e4%bb%a3%e7%a0%81%e5%86%99%e4%b8%80%e4%b8%aa%e8%ae%b0%e4%ba%8b%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/222497.html","title":{"rendered":"\u5982\u4f55\u7528java\u4ee3\u7801\u5199\u4e00\u4e2a\u8bb0\u4e8b\u672c"},"content":{"rendered":"

\"\u5982\u4f55\u7528java\u4ee3\u7801\u5199\u4e00\u4e2a\u8bb0\u4e8b\u672c\"<\/p>\n

\u8bb0\u4e8b\u672c\u662f\u65e5\u5e38\u751f\u6d3b\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u8f6f\u4ef6\uff0c\u5176\u57fa\u672c\u529f\u80fd\u5305\u62ec\u6587\u672c\u7684\u521b\u5efa\u3001\u7f16\u8f91\u3001\u4fdd\u5b58\u548c\u6253\u5f00\u3002\u5728Java\u4ee3\u7801\u4e2d\u5b9e\u73b0\u8bb0\u4e8b\u672c<\/strong>\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528Swing GUI\u5de5\u5177\u5305\u63d0\u4f9b\u7684\u7ec4\u4ef6<\/strong>\u3001\u4e8b\u4ef6\u5904\u7406\u673a\u5236\u5904\u7406\u7528\u6237\u4ea4\u4e92<\/strong>\uff0c\u4ee5\u53ca\u6587\u4ef6\u64cd\u4f5c\u7c7b\u5904\u7406\u6587\u672c\u6587\u4ef6<\/strong>\u3002<\/p>\n<\/p>\n

\u4e00\u4e2a\u57fa\u7840\u7684\u8bb0\u4e8b\u672c\u7a0b\u5e8f\u5e94\u5177\u5907\u6587\u672c\u8f93\u5165\u548c\u663e\u793a\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8fdb\u884c\u6587\u4ef6\u7684\u6253\u5f00\u3001\u7f16\u8f91\u548c\u4fdd\u5b58\u3002\u5229\u7528Java Swing\u6846\u67b6\u4e2d\u7684JFrame\u3001JTextArea\u3001JMenuBar\u7b49\u7ec4\u4ef6\uff0c\u914d\u5408\u6587\u4ef6\u8bfb\u5199\u64cd\u4f5c\uff0c\u5373\u53ef\u6784\u5efa\u7b80\u5355\u7684\u8bb0\u4e8b\u672c\u5e94\u7528\u7a0b\u5e8f\u3002\u4e0b\u9762\u662f\u6784\u5efa\u4e00\u4e2a\u57fa\u672c\u8bb0\u4e8b\u672c\u529f\u80fd\u6240\u9700\u7684\u6b65\u9aa4\u548c\u4ee3\u7801\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bbe\u7f6e\u57fa\u672c\u754c\u9762<\/h3>\n<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u8981\u901a\u8fc7\u7ee7\u627fJFrame\u7c7b\u6765\u521b\u5efa\u4e00\u4e2a\u7a97\u53e3\uff0c\u5e76\u8bbe\u7f6e\u4e00\u4e9b\u57fa\u7840\u5c5e\u6027\u5982\u5927\u5c0f\u3001\u6807\u9898\u3001\u9ed8\u8ba4\u5173\u95ed\u64cd\u4f5c\u7b49\u3002<\/p>\n<\/p>\n

import javax.swing.*;<\/p>\n
public class SimpleNotePad extends JFrame {<\/p>\n
    \/\/ \u6784\u9020\u65b9\u6cd5\uff0c\u521d\u59cb\u5316\u8bb0\u4e8b\u672c\u754c\u9762<\/p>\n
    public SimpleNotePad() {<\/p>\n
        setTitle("\u7b80\u6613\u8bb0\u4e8b\u672c"); \/\/ \u7a97\u53e3\u6807\u9898<\/p>\n
        setSize(600, 400); \/\/ \u7a97\u53e3\u5927\u5c0f<\/p>\n
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); \/\/ \u5173\u95ed\u64cd\u4f5c<\/p>\n
        \/\/ \u540e\u7eed\u6dfb\u52a0\u7ec4\u4ef6\u7684\u4ee3\u7801\u5c06\u653e\u5728\u8fd9\u91cc<\/p>\n
    }<\/p>\n
    \/\/ \u7a0b\u5e8f\u4e3b\u5165\u53e3<\/p>\n
    public static void mAI<\/a>n(String[] args) {<\/p>\n
        SimpleNotePad notePad = new SimpleNotePad();<\/p>\n
        notePad.setVisible(true);<\/p>\n
    }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u6dfb\u52a0\u6587\u672c\u7f16\u8f91\u533a\u57df<\/h3>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u5728\u7a97\u53e3\u4e2d\u6dfb\u52a0\u6587\u672c\u7f16\u8f91\u533a\u57df\uff0c\u8fd9\u91cc\u4f7f\u7528JTextArea\u7ec4\u4ef6\uff0c\u5141\u8bb8\u7528\u6237\u8f93\u5165\u548c\u663e\u793a\u6587\u672c\u3002<\/p>\n<\/p>\n
\/\/ \u6dfb\u52a0\u5230SimpleNotePad\u7c7b\u4e2d<\/p>\n
private JTextArea textArea;<\/p>\n
public SimpleNotePad() {<\/p>\n
    \/\/ ...<\/p>\n
    textArea = new JTextArea(); \/\/ \u521b\u5efa\u6587\u672c\u7f16\u8f91\u533a<\/p>\n
    add(new JScrollPane(textArea)); \/\/ \u5c06\u6587\u672c\u7f16\u8f91\u533a\u653e\u5165\u6eda\u52a8\u9762\u677f\uff0c\u5e76\u6dfb\u52a0\u5230\u7a97\u53e3<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u521b\u5efa\u83dc\u5355\u680f<\/h3>\n<\/p>\n
\u8bb0\u4e8b\u672c\u7684\u64cd\u4f5c\u901a\u5e38\u901a\u8fc7\u83dc\u5355\u6765\u8fdb\u884c\uff0c\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a\u83dc\u5355\u680f\uff0c\u5305\u542b\u6587\u4ef6\u548c\u7f16\u8f91\u7b49\u83dc\u5355\u9879\u3002<\/p>\n<\/p>\n
\/\/ \u6dfb\u52a0\u5230SimpleNotePad\u7c7b\u4e2d<\/p>\n
private JMenuBar menuBar;<\/p>\n
private JMenu fileMenu, editMenu; \/\/ \u6587\u4ef6\u548c\u7f16\u8f91\u83dc\u5355<\/p>\n
public SimpleNotePad() {<\/p>\n
    \/\/ ...<\/p>\n
    menuBar = new JMenuBar(); \/\/ \u521b\u5efa\u83dc\u5355\u680f<\/p>\n
    \/\/ \u8bbe\u7f6e\u6587\u4ef6\u83dc\u5355<\/p>\n
    fileMenu = new JMenu("\u6587\u4ef6");<\/p>\n
    menuBar.add(fileMenu);<\/p>\n
    \/\/ \u8bbe\u7f6e\u7f16\u8f91\u83dc\u5355<\/p>\n
    editMenu = new JMenu("\u7f16\u8f91");<\/p>\n
    menuBar.add(editMenu);<\/p>\n
    setJMenuBar(menuBar); \/\/ \u5c06\u83dc\u5355\u680f\u6dfb\u52a0\u5230\u7a97\u53e3<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5b9e\u73b0\u6587\u4ef6\u64cd\u4f5c\u529f\u80fd<\/h3>\n<\/p>\n
\u8981\u4f7f\u8bb0\u4e8b\u672c\u80fd\u591f\u64cd\u4f5c\u6587\u4ef6\uff08\u6253\u5f00\u3001\u4fdd\u5b58\u3001\u65b0\u5efa\u7b49\uff09\uff0c\u9700\u6dfb\u52a0\u6587\u4ef6\u64cd\u4f5c\u7684\u76f8\u5173\u65b9\u6cd5\uff0c\u5e76\u5728\u83dc\u5355\u9879\u4e2d\u7ed1\u5b9a\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
import java.io.*;<\/p>\n
import javax.swing.*;<\/p>\n
import java.awt.event.*;<\/p>\n
\/\/ \u6dfb\u52a0\u5230SimpleNotePad\u7c7b\u4e2d<\/p>\n
\/\/ ...<\/p>\n
public SimpleNotePad() {<\/p>\n
    \/\/ ...<\/p>\n
    \/\/ \u6587\u4ef6\u83dc\u5355\u9879<\/p>\n
    JMenuItem newItem = new JMenuItem("\u65b0\u5efa");<\/p>\n
    JMenuItem openItem = new JMenuItem("\u6253\u5f00");<\/p>\n
    JMenuItem saveItem = new JMenuItem("\u4fdd\u5b58");<\/p>\n
    \/\/ \u5c06\u83dc\u5355\u9879\u6dfb\u52a0\u5230\u6587\u4ef6\u83dc\u5355<\/p>\n
    fileMenu.add(newItem);<\/p>\n
    fileMenu.add(openItem);<\/p>\n
    fileMenu.add(saveItem);<\/p>\n
    \/\/ \u83dc\u5355\u9879\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u5668<\/p>\n
    newItem.addActionListener(new ActionListener() {<\/p>\n
        public void actionPerformed(ActionEvent e) {<\/p>\n
            textArea.setText(""); \/\/ \u6e05\u7a7a\u6587\u672c\u7f16\u8f91\u533a\u57df<\/p>\n
        }<\/p>\n
    });<\/p>\n
    openItem.addActionListener(new ActionListener() {<\/p>\n
        public void actionPerformed(ActionEvent e) {<\/p>\n
            JFileChooser fileChooser = new JFileChooser();<\/p>\n
            if (fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {<\/p>\n
                File file = fileChooser.getSelectedFile();<\/p>\n
                readFile(file); \/\/ \u8c03\u7528\u65b9\u6cd5\u8bfb\u53d6\u6587\u4ef6<\/p>\n
            }<\/p>\n
        }<\/p>\n
    });<\/p>\n
    saveItem.addActionListener(new ActionListener() {<\/p>\n
        public void actionPerformed(ActionEvent e) {<\/p>\n
            JFileChooser fileChooser = new JFileChooser();<\/p>\n
            if (fileChooser.showSaveDialog(null) == JFileChooser.APPROVE_OPTION) {<\/p>\n
                File file = fileChooser.getSelectedFile();<\/p>\n
                writeFile(file); \/\/ \u8c03\u7528\u65b9\u6cd5\u5199\u5165\u6587\u4ef6<\/p>\n
            }<\/p>\n
        }<\/p>\n
    });<\/p>\n
}<\/p>\n
\/\/ \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u663e\u793a\u5728\u6587\u672c\u7f16\u8f91\u533a\u57df<\/p>\n
private void readFile(File file) {<\/p>\n
    try (BufferedReader reader = new BufferedReader(new FileReader(file))) {<\/p>\n
        textArea.read(reader, null);<\/p>\n
    } catch (IOException e) {<\/p>\n
        e.printStackTrace();<\/p>\n
    }<\/p>\n
}<\/p>\n
\/\/ \u5c06\u6587\u672c\u7f16\u8f91\u533a\u57df\u7684\u5185\u5bb9\u4fdd\u5b58\u5230\u6587\u4ef6<\/p>\n
private void writeFile(File file) {<\/p>\n
    try (BufferedWriter writer = new BufferedWriter(new FileWriter(file))) {<\/p>\n
        textArea.write(writer);<\/p>\n
    } catch (IOException e) {<\/p>\n
        e.printStackTrace();<\/p>\n
    }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5728Java\u4e2d\u521b\u5efa\u57fa\u672c\u7684\u8bb0\u4e8b\u672c\u5e94\u7528\u7a0b\u5e8f\u3002\u53ef\u4ee5\u8fdb\u4e00\u6b65\u589e\u52a0\u529f\u80fd\uff0c\u5982\u6587\u672c\u683c\u5f0f\u8bbe\u7f6e\u3001\u67e5\u627e\u66ff\u6362\u7b49\uff0c\u4ee5\u63d0\u4f9b\u66f4\u5b8c\u6574\u7684\u8bb0\u4e8b\u672c\u4f53\u9a8c\u3002\u901a\u8fc7\u9605\u8bfb\u8fd9\u4e2a\u57fa\u7840\u7684\u6559\u7a0b\uff0c\u4f60\u53ef\u4ee5\u5f00\u59cb\u521b\u5efa\u81ea\u5df1\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u5e76\u4e14\u6839\u636e\u9700\u8981\u6dfb\u52a0\u66f4\u591a\u7279\u8272\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5982\u4f55\u901a\u8fc7Java\u4ee3\u7801\u5b9e\u73b0\u4e00\u4e2a\u7b80\u6613\u8bb0\u4e8b\u672c\uff1f<\/strong><\/p>\n
\u8981\u5b9e\u73b0\u4e00\u4e2a\u7b80\u6613\u8bb0\u4e8b\u672c\uff0c\u53ef\u4ee5\u4f7f\u7528Java\u7684GUI\u5e93\uff0c\u6bd4\u5982Swing\u6216JavaFX\u6765\u521b\u5efa\u7528\u6237\u754c\u9762\u3002\u7136\u540e\uff0c\u901a\u8fc7Java\u4ee3\u7801\u6765\u5b9e\u73b0\u4fdd\u5b58\u3001\u6253\u5f00\u3001\u7f16\u8f91\u7b49\u529f\u80fd\u3002<\/p>\n
\u5982\u4f55\u5728Java\u4e2d\u4f7f\u7528Swing\u5e93\u521b\u5efaGUI\u754c\u9762\uff1f<\/strong><\/p>\n
\u8981\u4f7f\u7528Swing\u5e93\u521b\u5efaGUI\u754c\u9762\uff0c\u9996\u5148\u8981\u5bfc\u5165javax.swing\u5305\u3002\u7136\u540e\uff0c\u521b\u5efa\u4e00\u4e2a\u7ee7\u627f\u81eaJFrame\u7684\u7c7b\u4f5c\u4e3a\u4e3b\u7a97\u53e3\uff0c\u901a\u8fc7\u8c03\u7528\u5404\u79cdSwing\u7ec4\u4ef6\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u6765\u521b\u5efa\u754c\u9762\u5143\u7d20\uff0c\u4f8b\u5982\u6587\u672c\u6846\u3001\u6309\u94ae\u3001\u83dc\u5355\u7b49\u3002\u6700\u540e\uff0c\u901a\u8fc7\u8bbe\u7f6e\u5e03\u5c40\u7ba1\u7406\u5668\u548c\u76d1\u542c\u5668\u6765\u63a7\u5236\u754c\u9762\u5e03\u5c40\u548c\u4e8b\u4ef6\u5904\u7406\u3002<\/p>\n
\u5982\u4f55\u5b9e\u73b0\u8bb0\u4e8b\u672c\u7684\u4fdd\u5b58\u548c\u6253\u5f00\u529f\u80fd\uff1f<\/strong><\/p>\n
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