Java 刪除某個目錄

刪除目錄或文件，如果目錄不爲空的話，則遞歸刪除目錄下的所有內容

/**
 * 刪除文件或目錄
 * 如果是目錄則遞歸刪除目錄下所有內容
 * ps: 不支持link類型的目錄
 *
 * @param path 要刪除的文件
 * @return
 * @throws IOException
 */
public static boolean delete(Path path) throws IOException {
   if (Files.isDirectory(path)) {
       return deleteDirectory(path);
   } else if (Files.isRegularFile(path)) {
       return deleteFile(path);
   }

   throw new IOException(String.format("cannot handle path:%s", path.toString()));
}

/**
 * 刪除文件
 *
 * @param path
 * @return
 * @throws IOException
 */
private static boolean deleteFile(Path path) throws IOException {
    if (!Files.exists(path)) {
        return true;
    }
    return Files.deleteIfExists(path);
}

/**
 * 迭代的清空目錄
 *
 * @return
 */
private static boolean deleteDirectory(Path path) throws IOException {
    if (!Files.exists(path)) {
        return true;
    }

    var children = Files.list(path).collect(Collectors.toList());

    boolean success = true;
    for (Path child : children) {
        try {
            boolean stepResult;
            if (Files.isDirectory(child)) {
                stepResult = deleteDirectory(child);
            } else {
                stepResult = deleteFile(child);
            }

            if (!stepResult) {
                success = false;
            }
        } catch (IOException e) {
            success = false;
        }
    }

    if (success) {
        success = Files.deleteIfExists(path);
    }
    return success;
}