redisTemplate 封裝bitcout

@Repositorypublic class RedisServiceExtend {    @Autowired    private RedisTemplate<String, String> redisTemplate;    private static String redisCode = "utf-8";    public long bitCount(final String key) {        return redisTemplate.exec((RedisCallback<Long>) con -> con.bitCount(key.getBytes()));    }    public Long bitCount(String key, int start, int end) {        return redisTemplate.execute((RedisCallback<Long>) con -> con.bitCount(key.getBytes(), start, end));    }    public Long bitOp(RedisStringCommands.BitOperation op, String saveKey, String... desKey) {        byte[][] bytes = new byte[desKey.length][];        for (int i = 0; i < desKey.length; i++) {            bytes[i] = desKey[i].getBytes();        }        return redisTemplate.execute((RedisCallback<Long>) con -> con.bitOp(op, saveKey.getBytes(), bytes));    }}