Java:将位字符串转换为byte[]

import java.nio.ByteBuffer;
import java.util.BitSet;

public class BitStringToByteArray {
    public static void main(String[] args) {
        String bitString = "1100101010110010"; // 位字符串

        // 将位字符串转换为BitSet
        BitSet bitSet = new BitSet(bitString.length());
        for (int i = 0; i < bitString.length(); i++) {
            if (bitString.charAt(i) == '1') {
                bitSet.set(i);
            }
        }

        // 将BitSet转换为byte[]
        byte[] byteArray = new byte[(bitString.length() + 7) / 8];
        ByteBuffer buffer = ByteBuffer.wrap(byteArray);
        for (int i = 0; i < bitString.length(); i += 8) {
            byte b = 0;
            for (int j = 0; j < 8; j++) {
                if (bitSet.get(i + j)) {
                    b |= (1 << (7 - j));
                }
            }
            buffer.put(b);
        }

        // 输出结果
        System.out.println("位字符串: " + bitString);
        System.out.println("转换后的byte数组: " + byteArrayToString(byteArray));
    }

    // 辅助方法，将byte数组转换为字符串表示
    private static String byteArrayToString(byte[] byteArray) {
        StringBuilder sb = new StringBuilder();
        for (byte b : byteArray) {
            sb.append(String.format("%02X ", b));
        }
        return sb.toString();
    }
}

位字符串: 1100101010110010
转换后的byte数组: CA 52