public void copyFile(String oldPath, String newPath) throws IOException {

	(new File(newPath)).mkdirs();

	String[] file = new File(oldPath).list();

	File fileTemp = null;

	String separator = File.separator;

	for (int i = 0; i < file.length; i++) {

		if (oldPath.endsWith(separator)) {

			fileTemp = new File(oldPath + file[i]);

		} else {

			fileTemp = new File(oldPath + separator + file[i]);

		}

		if (fileTemp.isFile()) {

			FileInputStream fis = new FileInputStream(fileTemp);

			if (file[i].endsWith(".txt")) {

				fileTemp = new File(oldPath + separator + file[i].substring(0, file[i].length() - 4) + ".sql");

			}

			FileOutputStream fos = new FileOutputStream(newPath + "/" + fileTemp.getName());

			byte[] b = new byte[1024 * 5];

			int len;

			while ((len = fis.read(b)) != -1) {

				fos.write(b, 0, len);

			}

			fos.flush();

			fos.close();

			fis.close();

		}

		if (fileTemp.isDirectory()) {

			this.copyFile(oldPath + "/" + file[i], newPath + "/" + file[i]);

		}

	}

}