2.4 Scattering Reads

分散读取，有一个文本文件 3parts.txt

onetwothree

使用如下方式读取，可以将数据填充至多个 buffer

try (RandomAccessFile file = new RandomAccessFile("helloword/3parts.txt", "rw")) { FileChannel channel = file.getChannel(); ByteBuffer a = ByteBuffer.allocate(3); ByteBuffer b = ByteBuffer.allocate(3); ByteBuffer c = ByteBuffer.allocate(5); channel.read(new ByteBuffer[]{a, b, c}); a.flip(); b.flip(); c.flip(); debug(a); debug(b); debug(c); } catch (IOException e) { e.printStackTrace(); }