自动确认收货bug修改

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

@@ -95,7 +95,10 @@ public class StudentGoodsSellServiceImpl extends BaseServiceImpl<Integer, Studen
                 //获取到期的订单编号
                 String s = studentGoodsSellDao.queryNoAffirmOrderNo(autoAffirmReceiveTime, tenantInfo.getId());
                 if(StringUtils.isNotEmpty(s)){
-                    sb.append(s).append(",");
+                    sb.append(s);
+                    if(sb.length() > 0){
+                        sb.append(",");
+                    }
                 }
             }
             if (sb.length() > 0) {