订单中心报错

src/main/java/com/sqx/modules/orders/service/impl/OrdersServiceImpl.java

@@ -668,8 +668,13 @@ public class OrdersServiceImpl extends ServiceImpl<OrdersDao, Orders> implements
 
         List<Orders> orders = baseMapper.selectOrdersByOrdersNo(ordersNo, status, userId, courseId,
                 flag, time, userName, ordersType, TimeCompleteUtils.completeStartTime(startTime), TimeCompleteUtils.completeEndTime(endTime), sysUserId, qdCode, sysUserName);
+        Set<Long> courseIds = orders.stream().map(Orders::getCourseId).collect(Collectors.toSet());
+        List<Course> courses = courseDao.selectBatchIds(courseIds);
+        Map<Long, String> map = courses.stream().collect(Collectors.toMap(Course::getCourseId, Course::getTitle));
+        orders.parallelStream().forEach(s -> {
+            s.setTitle(map.get(s.getCourseId()));
+        });
         PageInfo<Orders> pageInfo = new PageInfo<>(orders);
-
         return Result.success().put("data", PageUtils.page(pageInfo));
     }
 

src/main/resources/mapper/orders/OrdersDao.xml

@@ -94,9 +94,8 @@
     </insert>
 
     <select id="selectOrdersByOrdersNo" resultType="com.sqx.modules.orders.entity.Orders">
-        select o.*,u.user_name as userName,c.title as title,s.username as sysUserName,s.qd_code as qdCode from orders o
+        select o.*,u.user_name as userName,s.username as sysUserName,s.qd_code as qdCode from orders o
         left join tb_user u on o.user_id=u.user_id
-        left join course c on c.course_id=o.course_id
         left join sys_user s on s.user_id=o.sys_user_id
         where 1=1
         <if test="userName!=null and userName!=''">