Java、Android复制文件、文件夹

/** * 复制整个文件夹内 * @author YOLANDA * @param oldPath String 原文件路径如：c:/fqf * @param newPath String 复制后路径如：f:/fqf/ff * @return boolean */public static void copyFolder(String oldPath, String newPath) {try {(new File(newPath)).mkdirs(); // 如果文件夹不存在 则建立新文件夹File a = new File(oldPath);String[] file = a.list();File temp = null;for (int i = 0; i < file.length; i++) {if (oldPath.endsWith(File.separator)) {temp = new File(oldPath + file[i]);} else {temp = new File(oldPath + File.separator + file[i]);}if (temp.isFile()) {FileInputStream input = new FileInputStream(temp);FileOutputStream output = new FileOutputStream(newPath+ "/" + (temp.getName()).toString());byte[] b = new byte[1024 * 5];int len;while ((len = input.read(b)) != -1) {output.write(b, 0, len);}output.flush();output.close();input.close();}if (temp.isDirectory()) {// 如果是子文件夹copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);}}} catch (NullPointerException e){} catch (Exception e) {}}