如何为文本字段jframe上的用户输入创建多个文件

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class FileCreator extends JFrame {
    private JTextArea textArea;
    private JButton createButton;

    public FileCreator() {
        super("File Creator");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 300);

        textArea = new JTextArea();
        createButton = new JButton("Create Files");

        createButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String content = textArea.getText();
                createFiles(content);
            }
        });

        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(new JScrollPane(textArea), BorderLayout.CENTER);
        getContentPane().add(createButton, BorderLayout.SOUTH);
    }

    private void createFiles(String content) {
        String[] lines = content.split("\n");

        for (int i = 0; i < lines.length; i++) {
            String fileName = "file" + i + ".txt";
            String fileContent = lines[i];

            try {
                File file = new File(fileName);
                FileWriter fileWriter = new FileWriter(file);
                BufferedWriter writer = new BufferedWriter(fileWriter);
                writer.write(fileContent);
                writer.close();

                // 如果需要上传到腾讯云的COS，可以在此处添加相应的上传代码
                // 使用腾讯云COS SDK上传文件并获取访问链接

            } catch (IOException e) {
                e.printStackTrace();
                // 处理文件创建失败的情况
            }
        }

        JOptionPane.showMessageDialog(this, "文件创建完成！");
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                FileCreator fileCreator = new FileCreator();
                fileCreator.setVisible(true);
            }
        });
    }
}