diff --git a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchMqttNoticeController.java b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchMqttNoticeController.java
index 280cb07..01cb50b 100644
--- a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchMqttNoticeController.java
+++ b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchMqttNoticeController.java
@@ -4,6 +4,7 @@ import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.core.toolkit.StringUtils;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.renkang.watch.constant.WatchConstants;
 import com.renkang.watch.entity.WatchMqttNotice;
@@ -90,15 +91,17 @@ public class WatchMqttNoticeController extends JeecgController<WatchMqttNotice,
                 if(loginUser!=null){
                     mn.setCreateByName(loginUser.getRealname());
                 }
-                String[] userIds = mn.getUserId().split(",");
-                List<String> nameList = new ArrayList<>();
-                for (String userId : userIds) {
-                    String name = userMap.get(userId);
-                    if (StrUtil.isNotEmpty(name)) {
-                        nameList.add(name);
+                if(StringUtils.isNotEmpty(mn.getUserId())){
+                    String[] userIds = mn.getUserId().split(",");
+                    List<String> nameList = new ArrayList<>();
+                    for (String userId : userIds) {
+                        String name = userMap.get(userId);
+                        if (StrUtil.isNotEmpty(name)) {
+                            nameList.add(name);
+                        }
                     }
+                    mn.setUserName(StrUtil.join(",", nameList));
                 }
-                mn.setUserName(StrUtil.join(",", nameList));
             }
         }
         return Result.OK(pageList);