feat：12月活动

mec-biz/src/main/java/com/ym/mec/biz/service/impl/DegreeRegistrationServiceImpl.java

@@ -8,6 +8,7 @@ import com.ym.mec.biz.dal.dao.*;
 import com.ym.mec.biz.dal.dto.DegreeRegistrationActivityDto;
 import com.ym.mec.biz.dal.entity.*;
 import com.ym.mec.biz.dal.enums.OrderDetailTypeEnum;
+import com.ym.mec.common.constant.CommonConstants;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -151,7 +152,7 @@ public class DegreeRegistrationServiceImpl extends BaseServiceImpl<Integer, Degr
                     if(FREE_PRICE_LEVEL.contains(degreeRegistration.getLevel())){
                         degreeRegistration.setMoney(BigDecimal.ZERO);
                     }else{
-                        degreeRegistration.setMoney(degreeRegistration.getMoney().divide(new BigDecimal(2)));
+                        degreeRegistration.setMoney(degreeRegistration.getMoney().divide(new BigDecimal(2), CommonConstants.DECIMAL_FINAL_PLACE, BigDecimal.ROUND_DOWN));
                     }
                     highUnitPrice = practiceGroupSellPrice.getHighOnlineTenCourseActivityPriceWithNewUser();