Question

netty bytebuf怎么转成byte数组

Answer 1

ByteBuf buf = (ByteBuf)msg;
byte[] req = new byte[buf.readableBytes()]；
buf.readBytes(req);
String body = new String(req,"UTF-8");

Answer 2

byte[] bytes = ByteBufUtil.getBytes(byteBuf);
ByteBufUtil,netty自带的工具类.