package cn.byhieg.niotutorial;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.RandomAccessFile;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;

/**

* Created by shiqifeng on 2017/4/10.

* Mail byhieg@gmail.com

*/

public class NioTest {

public static void main(String[] args) throws IOException {

String s = File.separator;

RandomAccessFile aFile = new RandomAccessFile("D:" + s + "read_file.txt","rw");

FileChannel inChannel = aFile.getChannel();

ByteBuffer buf = ByteBuffer.allocate(48);

int bytesRead = inChannel.read(buf);

while (bytesRead != -1) {

buf.flip();

while (buf.hasRemaining()) {

System.out.print((char) buf.get());

}

buf.clear();

bytesRead = inChannel.read(buf);

}

aFile.close();

}

}