update

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

@@ -393,10 +393,18 @@ public class StudentPaymentOrderDetailServiceImpl extends BaseServiceImpl<Long,
         		dto.setUsername(usernameMap.get(userId));
         	}else{
         		
-        		if(StringUtils.isNoneBlank(accessoriesId)){
-        			accessoriesId = StringUtils.removeEnd(accessoriesId, ",");
-        			dto.setAccessoriesName(goodsService.findGoodsByIds(accessoriesId).stream().map(Goods::getName).collect(Collectors.joining(",")));
-        		}
+				if (StringUtils.isNoneBlank(accessoriesId)) {
+					accessoriesId = StringUtils.removeEnd(accessoriesId, ",");
+					Map<Integer, Goods> goodsMap = goodsService.findGoodsByIds(accessoriesId).stream().collect(Collectors.toMap(Goods::getId, Goods -> Goods));
+
+					String[] accessoriesIds = StringUtils.split(accessoriesId, ',');
+
+					StringBuffer sb = new StringBuffer();
+					for (String s : accessoriesIds) {
+						sb.append(goodsMap.get(Integer.parseInt(s)).getName()).append(",");
+					}
+					dto.setAccessoriesName(StringUtils.removeEnd(sb.toString(), ","));
+				}
 
         		dto.setAccessoriesAmount(userOrderTypeMap.get(OrderDetailTypeEnum.ACCESSORIES));
     			dto.setCourseAmount(userOrderTypeMap.get(OrderDetailTypeEnum.COURSE));