1、优化用能查询

user-service/src/main/java/com/mh/user/service/impl/SummaryServiceImpl.java

@@ -10,10 +10,12 @@ import com.mh.user.mapper.SummaryMapper;
 import com.mh.user.service.BuildingService;
 import com.mh.user.service.DealDataService;
 import com.mh.user.service.SummaryService;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.time.LocalDate;
 import java.time.Year;
 import java.time.YearMonth;
@@ -23,6 +25,7 @@ import java.util.List;
 
 import static java.lang.Double.parseDouble;
 
+@Slf4j
 @Service
 public class SummaryServiceImpl implements SummaryService {
 
@@ -120,6 +123,8 @@ public class SummaryServiceImpl implements SummaryService {
             }
 
             // curList每一个参数求和，得出 EnergySumEntity
+            EnergySumEntity result = null;
+            try {
                 EnergySumEntity curSum = new EnergySumEntity();
                 if (curList.isEmpty()) {
                     curSum.setWaterValue("0");
@@ -147,7 +152,7 @@ public class SummaryServiceImpl implements SummaryService {
                 }
 
                 // 昨日的EnergySumEntity和今日的EnergySumEntity，对比计算出补水昨日比、用水与昨日比、用电与昨日比、单耗与昨日比
-            EnergySumEntity result = new EnergySumEntity();
+                result = new EnergySumEntity();
                 if (curList.isEmpty()) {
                     result.setWaterValue("0");
                     result.setElectValue("0");
@@ -166,10 +171,15 @@ public class SummaryServiceImpl implements SummaryService {
                 result.setElectP(calculateRatio(curSum.getElectValue(), lastSum.getElectValue()));
 
                 // 计算单耗比较
-            String curPerElect = count != 0 ? new BigDecimal(curSum.getElectValue()).divide(new BigDecimal(count)).toString() : "0";
-            String lastPerElect = count != 0 ? new BigDecimal(lastSum.getElectValue()).divide(new BigDecimal(count)).toString() : "0";
+                // 计算单耗比较
+                String curPerElect = count != 0 ? new BigDecimal(curSum.getElectValue()).divide(new BigDecimal(count), 2, RoundingMode.HALF_UP).toString() : "0";
+                String lastPerElect = count != 0 ? new BigDecimal(lastSum.getElectValue()).divide(new BigDecimal(count), 2, RoundingMode.HALF_UP).toString() : "0";
                 result.setElectWaterP(calculateRatio(curPerElect, lastPerElect));
 
+            } catch (Exception e) {
+                log.error("计算百分比异常", e);
+            }
+
             return result;
         } else if (level == 0) {
             buildingId = "所有";
@@ -204,15 +214,25 @@ public class SummaryServiceImpl implements SummaryService {
      * @param previous 前一个值
      * @return 比率（百分比形式）
      */
+    /**
+     * 计算比率的方法
+     *
+     * @param current  当前值
+     * @param previous 前一个值
+     * @return 比率（百分比形式，保留两位小数）
+     */
     private String calculateRatio(String current, String previous) {
         if (parseDouble(previous) == 0) {
-            return parseDouble(current) > 0 ? "100" : "0"; // 避免除零错误
+            return parseDouble(current) > 0 ? "100.00%" : "0.00%"; // 避免除零错误
         }
-        return String.valueOf(((parseDouble(current) - parseDouble(previous)) / parseDouble(previous)) * 100);
+
+        double result = ((parseDouble(current) - parseDouble(previous)) / parseDouble(previous)) * 100;
+        return String.format("%.2f%%", result);
     }
 
 
 
+
     @Override
     public MaintainSumEntity queryMaintainSum(String buildingId, String curDate) {
         return summaryMapper.queryMaintainSum(buildingId,curDate);

user-service/src/main/java/com/mh/user/strategy/WtMeterStrategy.java

@@ -112,6 +112,7 @@ public class WtMeterStrategy implements DeviceStrategy {
         }
         log.info("水表表号: " + meterId + ",水表读数：" + data);
         try {
+            if (!StringUtils.isBlank(data)) {
                 DataResultEntity dataResultEntity = new DataResultEntity();
                 dataResultEntity.setDeviceAddr(meterId);//通讯编号
                 dataResultEntity.setDeviceType("水表");
@@ -121,11 +122,12 @@ public class WtMeterStrategy implements DeviceStrategy {
                 dataResultEntity.setBuildingId(buildingId);
                 dataResultService.saveDataResult(dataResultEntity);
                 log.info("水表数据保存数据库成功！楼栋名称：" + buildingName);
+            }
         } catch (Exception e) {
             e.printStackTrace();
             log.error("水表数据保存数据库失败！楼栋名称：" + buildingName);
         }
-        if (StringUtils.isBlank(data)) {
+        if (!StringUtils.isBlank(data)) {
             data = String.valueOf(Double.valueOf(data));
         }
         return data;