修改理论考试计算平均分

src/main/java/com/sztzjy/money_management/service/impl/ScoreRankServiceImpl.java

@@ -437,7 +437,7 @@ public class ScoreRankServiceImpl implements ScoreRankService {
                     List<TrainingReport> trainingReports = trainingReportMapper.selectByExample(trainingReportExample);
                     BigDecimal reportScore=BigDecimal.ZERO;
                     if (!trainingReports.isEmpty()) {
-                        if (trainingReports.get(0).getTeacherScore() != null) {
+                        if (trainingReports.get(0).getTeacherScore() != null) {  //todo 报告得分为0导致更新成绩报错，这里加了一个判断
                             reportScore = trainingReports.get(0).getTeacherScore().multiply(studentScoreWeight.getReportWeight());
                         }
                     }

src/main/java/com/sztzjy/money_management/service/impl/TrainingServiceImpl.java

@@ -11,6 +11,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -247,7 +248,13 @@ public class TrainingServiceImpl implements TrainingService {
         }
         StuSynthesisPlanScoreAndAvgScoreDto dto = new StuSynthesisPlanScoreAndAvgScoreDto();
         dto.setList(returnList);
-        dto.setAvgScore(fenzi.divide(fenmu).setScale(4, BigDecimal.ROUND_HALF_UP).multiply(BigDecimal.valueOf(100)).setScale(2, BigDecimal.ROUND_HALF_UP));
+        if (fenzi.compareTo(BigDecimal.ZERO)<=0){
+            System.out.println();
+        }
+        //todo 报错舍去模式有问题，修改了四舍五入模式
+        dto.setAvgScore(fenzi.divide(fenmu,4, RoundingMode.HALF_UP)
+                .multiply(BigDecimal.valueOf(100))
+                .setScale(2, RoundingMode.HALF_UP));
         return dto;
     }
 }