优化dnc，设备结构树查询，优化原有代码

lyh

2025-04-11 2cf1565485060fd56e1f1f1cffbba7a4d70d42a6

 lxzn-module-dnc/src/main/java/org/jeecg/modules/dnc/service/impl/DeviceGroupPermissionServiceImpl.java

@@ -1,10 +1,8 @@
package org.jeecg.modules.dnc.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.jeecg.modules.dnc.entity.DeviceGroup;
import org.jeecg.modules.dnc.entity.DeviceGroupPermission;
import org.jeecg.modules.dnc.entity.DevicePermissionStream;
import org.jeecg.modules.dnc.exception.ExceptionCast;