请教大家一个问题， redis 的 bitmap 转换成 Java 的 bitset 采用 BitSet.valueOf 方法获取出来的结果跟存储进去的不一样，这是为什么，应该怎么做可以达到一致的效果？

代码： import redis.clients.jedis.Jedis;

import java.util.BitSet; import java.util.HashSet; import java.util.Random; import java.util.Set;

public class BitmapTest {

private Jedis jedis = null;

private void init() {
    try {
        jedis = new Jedis("192.168.97.57", 6379);
        jedis.auth("666666");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

private void destroy() {
    if (jedis != null) {
        jedis.close();
    }
}

public boolean get(String key, int companyId) {
    init();
    boolean result = jedis.getbit(key, companyId);
    destroy();
    return result;
}


public Set<Integer> getCid(String sid) {
    init();
    Set<Integer> set = new HashSet<>(100);
    try {
        BitSet b = BitSet.valueOf(jedis.get(String.format("sid:%s", sid)).getBytes());
        for (int i = b.nextSetBit(0); i >= 0; i = b.nextSetBit(i + 1)) {
            set.add(i);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    destroy();
    return set;
}

public void insert() {
    init();
    try {
        for (int i = 0; i < 3; i++) {
            String key = String.format("sid:%08d", i);
            System.out.println("key = " + key);
            jedis.del(key);
            for (int j = 0; j < 5; j++) {
                int cid = new Random().nextInt(100000);
                System.out.println("setbit = " + key + ":" + cid);
                jedis.setbit(key, cid, true);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        destroy();
    }
}

public static void main(String[] args) {
    BitmapTest test = new BitmapTest();
    test.insert();
    Set<Integer> cidSet = test.getCid("00000000");
    System.out.println("cidSet = " + cidSet.size());
    for (Integer cid : cidSet) {
        System.out.println("cid = " + cid);
    }
}

}