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); } } 

}