从 java 中的 ByteBuffer 获取字节数组 [英] Gets byte array from a ByteBuffer in java

问题描述

这是从 ByteBuffer 中获取字节的推荐方法吗

Is this the recommended way to get the bytes from the ByteBuffer

ByteBuffer bb =..

byte[] b = new byte[bb.remaining()]
bb.get(b, 0, b.length);

推荐答案

取决于你想做什么.

如果您想要检索剩余的字节(在位置和限制之间)，那么您所拥有的将起作用.你也可以这样做:

If what you want is to retrieve the bytes that are remaining (between position and limit), then what you have will work. You could also just do:

ByteBuffer bb =..

byte[] b = new byte[bb.remaining()];
bb.get(b);

这相当于 ByteBuffer javadocs.

which is equivalent as per the ByteBuffer javadocs.

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