优化订阅机制，需要重新订阅时，取消命令发送后再发送订阅命令 #1273

648540858

2024-02-20 a9ab5c28e9fd52c1d936a245ac46c9e556f6bc3e

 src/main/java/com/genersoft/iot/vmp/service/impl/DeviceChannelServiceImpl.java

@@ -245,6 +245,10 @@

    @Override
    public void batchUpdateChannel(List<DeviceChannel> channels) {
        String now = DateUtil.getNow();
        for (DeviceChannel channel : channels) {
            channel.setUpdateTime(now);
        }
        channelMapper.batchUpdate(channels);
        for (DeviceChannel channel : channels) {
            if (channel.getParentId() != null) {