49 lines
2.0 KiB
Java
49 lines
2.0 KiB
Java
package com.ly.file;
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import javax.swing.*;
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import java.awt.*;
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import java.io.*;
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import javax.swing.filechooser.FileSystemView;
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public class FileEditor {
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public static void openFileEditor(String filePath) {
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File file = new File(filePath);
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if (!file.exists()) {
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JOptionPane.showMessageDialog(null, "文件不存在：" + filePath, "错误", JOptionPane.ERROR_MESSAGE);
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return;
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}
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// 仅对文本文件进行编辑
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if (file.getName().endsWith(".txt")) {
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JTextArea textArea = new JTextArea();
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JScrollPane scrollPane = new JScrollPane(textArea);
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scrollPane.setPreferredSize(new Dimension(600, 400));
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// 读取文件内容
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try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
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textArea.read(reader, null);
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} catch (IOException ex) {
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ex.printStackTrace();
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JOptionPane.showMessageDialog(null, "无法读取文件：" + ex.getMessage(), "错误", JOptionPane.ERROR_MESSAGE);
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return;
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}
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int result = JOptionPane.showConfirmDialog(null, scrollPane, "编辑文件：" + file.getName(),
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JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
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if (result == JOptionPane.OK_OPTION) {
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// 保存文件内容
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try (BufferedWriter writer = new BufferedWriter(new FileWriter(file))) {
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textArea.write(writer);
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JOptionPane.showMessageDialog(null, "文件已保存。", "信息", JOptionPane.INFORMATION_MESSAGE);
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} catch (IOException ex) {
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ex.printStackTrace();
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JOptionPane.showMessageDialog(null, "无法保存文件：" + ex.getMessage(), "错误", JOptionPane.ERROR_MESSAGE);
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}
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}
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} else {
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JOptionPane.showMessageDialog(null, "无法编辑非文本文件。", "提示", JOptionPane.WARNING_MESSAGE);
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}
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}
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}
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