java Swing常用的知识点

1、触发文件夹选择器

private String getIndexChangedDirPath() {
        JFileChooser chooser = new JFileChooser();
        chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        int returnVal = chooser.showOpenDialog(this);
        if (returnVal == JFileChooser.APPROVE_OPTION) {
            File selectedFile = chooser.getSelectedFile();
            String absolutePath = selectedFile.getAbsolutePath();
            return absolutePath;
        }
        return null;
    }

2、jtable增加表格双击事件

private void tableBindMouseClickEvent(JTable table) {
        MouseListener mouseListener =
                new MouseAdapter() {
                    public void mousePressed(MouseEvent e) {
                        if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 2) {
                            // 获取选中的行和列
                            int row = table.rowAtPoint(e.getPoint());
                            int col = table.columnAtPoint(e.getPoint());

                            // 获取选中的单元格的内容
                            if (row >= 0 && col >= 0) {
                                Object cellValue = table.getValueAt(row, col);
                                String filePath = cellValue.toString();
                                if (!FileUtil.exist(filePath)) {
                                    return;
                                }
                                // 选中文件所在的目录并且高亮显示文件
                                try {
                                    Runtime.getRuntime()
                                            .exec("explorer.exe /e, /select, " + filePath);
                                } catch (IOException ex) {
                                    log.error("open file error", ex);
                                }
                            }
                        }
                    }
                };
        // 添加单击事件监听器
        table.addMouseListener(mouseListener);
    }

3、系统文件浏览器打开指定的文件并选中

 Runtime.getRuntime().exec("explorer.exe /e, /select, " + filePath);