优化历史录像下载，目前已测试大华国标级联下载

wangyimeng

2023-03-09 14c4a3c7e81e9a3898a3f301b9303c381a806932

 src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceMapper.java

@@ -280,4 +280,6 @@
    @Select("select count(1) as total, sum(online) as online from device")
    ResourceBaceInfo getOverview();

    @Select("select * from device")
    List<Device> getAll();
}