public static String readUseNIO(File file) { FileInputStream fin; String string = null; try { fin = new FileInputStream(file); FileChannel channel = null; channel = fin.getChannel(); // 文件内容的大小 int size = (int) channel.size(); // 获取通道 FileChannel fc = fin.getChannel(); // 创建缓冲区 ByteBuffer buffer = ByteBuffer.allocate(1024 * 1024 * 1); // 读取数据到缓冲区 fc.read(buffer); // Buffer bf = buffer.flip(); // System.out.println("limt:" + bf.limit()); byte[] bt = buffer.array(); string = new String(bt, 0, size,"UTF-8"); // System.out.println(new String(bt, 0, size)); // FileUtil.appendString("F:/html/22.html", new String(bt, 0, // size)); buffer.clear(); buffer = null; fin.close(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return string; }
时间: 2024-10-13 14:59:43