使用Swing组件显示目录和FTP服务器中文件的最佳方式

import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
import org.apache.commons.net.ftp.FTPClient;

JFrame frame = new JFrame("FTP文件浏览器");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

DefaultMutableTreeNode root = new DefaultMutableTreeNode("根目录");
JTree tree = new JTree(root);

frame.add(new JScrollPane(tree));
frame.pack();
frame.setVisible(true);

FTPClient ftpClient = new FTPClient();
ftpClient.connect("ftp.example.com", 21);
ftpClient.login("username", "password");

FTPFile[] files = ftpClient.listFiles();

for (FTPFile file : files) {
    DefaultMutableTreeNode node = new DefaultMutableTreeNode(file.getName());
    root.add(node);
}

((DefaultTreeModel) tree.getModel()).reload();