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package com.example.newio;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;

/**

* Created by riven_chris on 15/8/6.

*/

public class ChannelCopy {

private static final int SIZE = 1024;

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

FileChannel in = new FileInputStream("test_files/data.txt").getChannel(),

out = new FileOutputStream("test_files/data2.txt").getChannel();

ByteBuffer buffer = ByteBuffer.allocate(SIZE);

//本例中并不是处理此类操作的最理想方式。使用特殊方法transferTo()和transferFrom()。

while (in.read(buffer) != -1) {

buffer.flip();//Prepare for writing

out.write(buffer);

buffer.clear();//Prepare for reading

}

}

}