fix:公告非空限制

application-webadmin/src/main/java/com/tourism/webadmin/app/website/service/impl/TourMessageServiceImpl.java

@@ -12,6 +12,7 @@ import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapp
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.github.pagehelper.Page;
 import com.github.pagehelper.page.PageMethod;
+import com.tourism.common.core.exception.MyRuntimeException;
 import com.tourism.common.core.object.MyPageData;
 import com.tourism.common.core.object.MyRelationParam;
 import com.tourism.common.core.object.TokenData;
@@ -384,6 +385,9 @@ public class TourMessageServiceImpl extends ServiceImpl<TourImMessageMapper, Tou
         if(group==null) {
             return false;
         }
+        if(ObjectUtil.isEmpty(param.getMessageContent())){
+          return false;
+        }
         List<TourImMessage> list = lambdaQuery().eq(TourImMessage::getGroupId, param.getGroupId()).eq(TourImMessage::getIsTop, 1).list();
         MessageDTO messageDTO = new MessageDTO();
         messageDTO.setMessageContent( param.getMessageContent());