Java Swing - 如何在JTree中添加Windows目錄結(jié)構(gòu)

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import java.io.File;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
public class Main extends JFrame {
  public static void main(String[] args) {
    new Main().setVisible(true);
  }
  private JTree tree;
  public Main() {
    this.tree = new JTree();
    this.add(this.tree);
    File fileRoot = new File("C:/");
    DefaultMutableTreeNode root = new DefaultMutableTreeNode(fileRoot);
    DefaultTreeModel model = new DefaultTreeModel(root);
    File[] subItems = fileRoot.listFiles();
    for (File file : subItems) {
      root.add(new DefaultMutableTreeNode(file));
    }
    this.tree.setModel(model);
    
    this.pack();
  }
 
 
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