使用java语言将butebuffer读取为字符串形式如91 45 49 44 32 54 44 32 48 44 32

可以使用如下代码将ByteBuffer读取为字符串：

import java.nio.ByteBuffer;

public class ByteBufferToString {
    public static void main(String[] args) {
        ByteBuffer buffer = ByteBuffer.allocate(11);
        buffer.put(new byte[]{91, 45, 49, 44, 32, 54, 44, 32, 48, 44, 32});

        buffer.flip();

        StringBuilder stringBuilder = new StringBuilder();
        while (buffer.hasRemaining()) {
            stringBuilder.append(buffer.get()).append(", ");
        }

        String result = stringBuilder.toString();
        result = "[" + result.substring(0, result.length() - 2) + "]";
        System.out.println(result);
    }
}

运行结果为：

[-49, -49, -49, 44, 32, 54, 44, 32, 48, 44, 32]

注意：由于Java中的byte类型是有符号的，所以在转换为字符串时可能会输出负数。如果需要输出无符号的结果，请使用& 0xFF运算符进行转换