BUGFIX: 获取系统通知未读数

src/main/java/com/ai/da/service/impl/MessageCenterServiceImpl.java

@@ -188,7 +188,7 @@ public class MessageCenterServiceImpl extends ServiceImpl<NotificationMapper, No
         ArrayList<Map<String, Object>> resp = new ArrayList<>();
         HashMap<String, Object> data = new HashMap<>();
         Long count;
-        if (!type.equals("system") ||  Objects.nonNull(receiverId)) {
+        if (!type.equals("system")) {
             // 个人未读消息
             count = getUnreadCountByType(type, receiverId);
         } else {
@@ -245,14 +245,20 @@ public class MessageCenterServiceImpl extends ServiceImpl<NotificationMapper, No
     }
 
     private Long getUnreadSystemNotification() {
+        Long accountId = UserContext.getUserHolder().getId();
         // 计算总的系统通知数量
         QueryWrapper<Notification> queryWrapper = new QueryWrapper<>();
-        queryWrapper.eq("type", "system");
+        queryWrapper.lambda().eq(Notification::getType, "system")
+                .and(wrapper -> wrapper
+                        .isNull(Notification::getReceiverId)
+                        .or()
+                        .eq(Notification::getReceiverId, accountId)
+                );
         Long totalSysCount = baseMapper.selectCount(queryWrapper);
 
         // 计算单个用户读了多少条系统数据
         QueryWrapper<SysNotificationReadStatus> wrapper = new QueryWrapper<>();
-        wrapper.eq("account_id", UserContext.getUserHolder().getId());
+        wrapper.eq("account_id", accountId);
         Long readCount = sysNotificationReadStatusMapper.selectCount(wrapper);
 
         // 计算差