spring 静态属性注入为null问题

这么写
private static  RedisUtil redisUtil;


private static AdminLogDao adminLogDao;


@Autowired
public  void setRedisUtil(RedisUtil redisUtil) {
    CommonStatic.redisUtil = redisUtil;
}

@Autowired
public  void setAdminLogDao(AdminLogDao adminLogDao) {
    CommonStatic.adminLogDao = adminLogDao;
}