将字符串写入指定文件

/**
	 * 将字符串写入指定文件(当指定的父路径中文件夹不存在时，会最大限度去创建，以保证保存成功！)
	 * 
	 * @param res 原字符串
	 * @param filePath 文件路径
	 * @return 是否成功
	 */
	public boolean stringToFile(String res, String filePath) {
		boolean flag = true;
		BufferedReader bufferedReader = null;
		BufferedWriter bufferedWriter = null;
		try {
			File distFile = new File(filePath);
			if (!distFile.getParentFile().exists())
				distFile.getParentFile().mkdirs();
			bufferedReader = new BufferedReader(new StringReader(res));
			bufferedWriter = new BufferedWriter(new FileWriter(distFile));
			char buf[] = new char[1024];
			int len;
			while ((len = bufferedReader.read(buf)) != -1) {
				bufferedWriter.write(buf, 0, len);
			}
			bufferedWriter.flush();
			bufferedReader.close();
			bufferedWriter.close();
		} catch (IOException e) {
			e.printStackTrace();
			flag = false;
			return flag;
		} finally {
			if (bufferedReader != null) {
				try {
					bufferedReader.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return flag;
	}