perf

src/main/java/com/biutag/supervision/service/WvpDeviceChannelService.java

@@ -1,5 +1,6 @@
 package com.biutag.supervision.service;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.biutag.supervision.mapper.WvpDeviceChannelMapper;
 import com.biutag.supervision.pojo.entity.WvpDeviceChannel;
@@ -12,7 +13,7 @@ import java.util.stream.Collectors;
 public class WvpDeviceChannelService extends ServiceImpl<WvpDeviceChannelMapper, WvpDeviceChannel> {
 
     public List<WvpDeviceChannel> getDeviceList() {
-        List<WvpDeviceChannel> allDevices = list();
+        List<WvpDeviceChannel> allDevices = list(new LambdaQueryWrapper<WvpDeviceChannel>().eq(WvpDeviceChannel::getStatus, "ON"));
         Map<String, WvpDeviceChannel> deviceMap = allDevices.stream()
                 .collect(Collectors.toMap(WvpDeviceChannel::getDeviceId, device -> device));
         List<WvpDeviceChannel> hierarchy = new ArrayList<>();