mybatis-plus条件查询(java)

QueryWrapper<CoreCamera> queryWrapper = new QueryWrapper<>();//创建查询对象
queryWrapper.select("is_remote_control").eq("stream",stream);//构建查询条件(返回特定字段,根据条件查询)
CoreCamera coreCamera  = coreCameraMapper.selectOne(queryWrapper);//选择单个查询还是列表查询