- import java.io.*;
- import java.nio.*;
- import java.nio.channels.*;
- public class NIOCat {
- public static void main(String[] args) throws IOException {
- if (args.length < 2) {
- System.err.println("Usage: java NIOCat inFile1 inFile2... outFile");
- return;
- }
- ByteBuffer[] buffers = new ByteBuffer[args.length-1];
- for (int i = 0; i < args.length-1; i++) {
- RandomAccessFile raf = new RandomAccessFile(args[i], "r");
- FileChannel channel = raf.getChannel();
- buffers[i] = channel.map(FileChannel.MapMode.READ_ONLY, 0, raf.length());
- }
- FileOutputStream outFile = new FileOutputStream(args[args.length-1]);
- FileChannel out = outFile.getChannel();
- out.write(buffers);
- out.close();
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/03122012773.html
来源: http://www.codesnippet.cn/detail/03122012773.html