处理空指针问题

amos-boot-system-jxiop/amos-boot-module-jxiop-analyse-biz/src/main/java/com/yeejoin/amos/boot/module/jxiop/biz/controller/TDBigScreenAnalyseController.java

@@ -162,8 +162,13 @@ public class TDBigScreenAnalyseController extends BaseController {
                 wrapper.eq(FanHealthIndex::getAnalysisObjType, "场站");
                 wrapper.eq(FanHealthIndex::getGatewayId, stationCode);
                 FanHealthIndex fanHealthIndex = fanHealthIndexMapper.selectOne(wrapper);
-                stringBigDecimalHashMap.put("value",
-                        BigDecimal.valueOf(fanHealthIndex.getHealthIndex()).setScale(1, BigDecimal.ROUND_HALF_UP));
+                //预防空指针
+                if(Objects.isNull(fanHealthIndex)){
+                    stringBigDecimalHashMap.put("value", "");
+                }else {
+                    stringBigDecimalHashMap.put("value",
+                            BigDecimal.valueOf(fanHealthIndex.getHealthIndex()).setScale(1, BigDecimal.ROUND_HALF_UP));
+                }
             } else {
                 LambdaQueryWrapper<PvHealthIndex> pvwrapper = new LambdaQueryWrapper<PvHealthIndex>();
                 pvwrapper.eq(PvHealthIndex::getAnalysisObjType, "场站");
@@ -171,8 +176,13 @@ public class TDBigScreenAnalyseController extends BaseController {
                 pvwrapper.orderByDesc(PvHealthIndex::getTs);
                 pvwrapper.last("limit 1");
                 PvHealthIndex pvHealthIndex = pvHealthIndexMapper.selectOne(pvwrapper);
-                stringBigDecimalHashMap.put("value",
-                        BigDecimal.valueOf(pvHealthIndex.getHealthIndex()).setScale(1, BigDecimal.ROUND_HALF_UP));
+                //预防空指针
+                if(Objects.isNull(pvHealthIndex)){
+                    stringBigDecimalHashMap.put("value", "");
+                }else {
+                    stringBigDecimalHashMap.put("value",
+                            BigDecimal.valueOf(pvHealthIndex.getHealthIndex()).setScale(1, BigDecimal.ROUND_HALF_UP));
+                }
 
             }
             return ResponseHelper.buildResponse(stringBigDecimalHashMap);