cnas-device/src/main/java/com/ruoyi/device/service/impl/DeviceStateServiceImpl.java
@@ -73,7 +73,7 @@ Laboratory laboratory = laboratoryMapper.selectOne(Wrappers.<Laboratory>lambdaQuery() .eq(Laboratory::getLaboratoryNumber, largeCategory) .select(Laboratory::getLaboratoryName)); laboratoryName = laboratory.getLaboratoryName(); laboratoryName = laboratory != null ? laboratory.getLaboratoryName() : ""; } else { laboratoryName = ""; }