Java 擷取檔案夾下所有檔案

/**
     * 擷取路徑下的所有檔案/檔案夾
     * @param directoryPath 需要周遊的檔案夾路徑
     * @param isAddDirectory 是否将子檔案夾的路徑也添加到list集合中
     * @return
     */
    public static List<String> getAllFile(String directoryPath,boolean isAddDirectory) {
        List<String> list = new ArrayList<String>();
        File baseFile = new File(directoryPath);
        if (baseFile.isFile() || !baseFile.exists()) {
            return list;
        }
        File[] files = baseFile.listFiles();
        for (File file : files) {
            if (file.isDirectory()) {
                if(isAddDirectory){
                    list.add(file.getAbsolutePath());
                }
                list.addAll(getAllFile(file.getAbsolutePath(),isAddDirectory));
            } else {
                list.add(file.getAbsolutePath());
            }
        }
        return list;
    }