我正在尝试使用 JTables 导航文件系统。我遇到的问题是，只要你一直按这个按钮，鼠标事件就会一直运行，因此如果有人试图通过连续双击“上一级”字段（因为它不移动）来上多个级别，它只会返回到一个目录，除非他们长时间停止单击。因此，我意识到这是由于 MouseEvent 仍然很活跃。
我很确定只要做一件事我就能做我想做的事 if(e.getClickCount() % 2 == 0) 但这感觉像是一个不正确的解决方法。是否有更好/更正确的方法来执行此操作，例如重置 MouseEvent 在最初的双击之后？有没有可能重置 MouseEvent 手动？如果是，怎么做？
编辑：恢复为一体式代码，以便于复制/粘贴：

package main;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.filechooser.FileSystemView;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumnModel;

public class Main {

    public static void main(String[] args) {
        new CreateFrame();
    }
}

class CreateFrame extends JFrame {
    public CreateFrame() {
        setPreferredSize(new Dimension(800, 600));
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (UnsupportedLookAndFeelException e) {
            e.printStackTrace();
        }
        setContentPane(new LocalNavigator());
        pack();
        setVisible(true);
    }

    class LocalTable extends JTable {

        private DefaultTableModel dtm;
        private File path;
        private FileSystemView fsv = FileSystemView.getFileSystemView();

        public LocalTable() {
            String[] header = new String[] { "Icon", "File/Folder Name", "File Type" };

            dtm = new DefaultTableModel() {
                @Override
                public boolean isCellEditable(int row, int column) {
                    return false;
                }

                @Override
                public Class<?> getColumnClass(int column) {
                    if (getRowCount() > 0) {
                        return getValueAt(0, column).getClass();
                    }

                    return super.getColumnClass(column);
                }
            };
            dtm.setColumnIdentifiers(header);
            setAutoCreateRowSorter(true);
            setRowHeight(25);
            setModel(dtm);

            addMouseListener(new MouseAdapter() {
                public void mouseClicked(MouseEvent e) {
                    if (e.getClickCount() == 2) {
                        JTable table = (JTable) e.getSource();
                        Point p = e.getPoint();
                        int row = table.rowAtPoint(p);
                        String type = getValueAt(row, 2).toString().toLowerCase();
                        if (type.contains("root") || type.contains("folder")) {
                            File file = new File((path != null ? path + "/" + getValueAt(row, 1) : getValueAt(row, 1).toString()));
                            if (file != null)
                                repopulateFileFolderList(file);
                        } else if (getValueAt(row, 1).toString().toLowerCase().contains("up one")
                            && getValueAt(row, 2).toString().equals("")) {
                            File file = path.getParentFile();
                            if (file != null)
                                repopulateFileFolderList(file);
                            else
                                getTableRoot();
                        } else {
                            System.out.println("Not a directory!");
                        }

                    }
                }
            });
        }

        public void getTableRoot() {
            path = null;
            while (dtm.getRowCount() > 0) {
                dtm.removeRow(0);
            }
            File[] roots = File.listRoots();
            for (File root : roots) {
                dtm.addRow(new Object[] { fsv.getSystemIcon(root), root.getAbsoluteFile(), "Root Directory" });
            }
        }

        private void repopulateFileFolderList(File folder) {
            path = folder;
            while (dtm.getRowCount() > 0) {
                dtm.removeRow(0);
            }
            dtm.addRow(new Object[] { fsv.getSystemIcon(folder), "Up One Level", "" });
            File[] files = folder.listFiles();
            for (File file : files) {
                dtm.addRow(new Object[] { fsv.getSystemIcon(file), file.getName(),
                    (file.isDirectory() ? "Folder" : file.isFile() ? "File" : "Unknown") });
            }
        }
    }

    class LocalNavigator extends JPanel {

        private LocalTable localTable;

        public LocalNavigator() {
            setLayout(new BorderLayout());

            localTable = new LocalTable();
            localTable.getTableRoot();

            JScrollPane lTree = new JScrollPane(localTable);

            add(lTree, "Center");

            TableColumnModel columns = localTable.getColumnModel();
            for (int c = 0;c < columns.getColumnCount();c++) {
                if (c == 0)
                    columns.getColumn(c).setMaxWidth(25);
                else
                    columns.getColumn(c).setPreferredWidth(50);
            }
        }
    }
}