通过自定义缓冲区提高IO操作效率

/***************************************************************************
	 * 通过自定义缓冲区提高IO操作效率
	 * 
	 * @param fileFrom
	 * @param fileTo
	 */
	public static void readWriteArray(String fileFrom, String fileTo) {
		InputStream in = null;
		OutputStream out = null;

		try {
			in = new FileInputStream(fileFrom);
			out = new FileOutputStream(fileTo);

			int length = in.available();
			byte[] totalBytes = new byte[length];
			out.write(totalBytes);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (in != null) {
					in.close();
					in = null;
				}
				if (out != null) {
					out.close();
					out = null;
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

评论

1 楼 beneo 2010-06-02  

首先，avalible 返回不是一个准确值
其次， bufferedOutputStream 就可以自定义 buffered