update

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

@@ -384,7 +384,7 @@ public class StudentRepairServiceImpl extends BaseServiceImpl<Integer, StudentRe
         	BigDecimal totalGroupPurchasePrice = BigDecimal.ZERO;
         	
         	for(String goodsIdStr : goodsIdsStr.split(",")){
-        		totalGroupPurchasePrice = totalGroupPurchasePrice.add(goodsMap.get(goodsIdStr).getGroupPurchasePrice());
+        		totalGroupPurchasePrice = totalGroupPurchasePrice.add(goodsMap.get(Integer.parseInt(goodsIdStr)).getGroupPurchasePrice());
         	}
         	
         	Goods goods = null;

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

@@ -4,7 +4,6 @@ import static com.ym.mec.biz.dal.enums.DealStatusEnum.SUCCESS;
 import static com.ym.mec.biz.dal.enums.GroupType.SUBJECT_CHANGE;
 
 import java.math.BigDecimal;
-import java.math.RoundingMode;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;