dev_cps消息列表空

@@ -2643,7 +2643,7 @@ public class UnionShareServiceImpl implements IUnionShareService,IBusinessExport
         int total=unionShareMessageMapper.selectTotalByCondition(req);
         if(total==0){
             logger.info("queryMessageList end.req is {},total is 0",req);
-            return null;
+            return new PageResponseBO<>();
         }
         List<UnionShareMessage> list = unionShareMessageMapper.selectByCondition(req);