Merge branch 'fixbug/fix1030832' into 'master'

bug: [1030832] 【生产回归】【生产环境】【出版端】【书刊管理】根据不存在的关键词搜索出了全部内容，应该一个也搜不到

See merge request rays/pcloud-book!1411

pcloud-service-book/src/main/java/com/pcloud/book/book/biz/impl/BookBizImpl.java

@@ -1284,7 +1284,7 @@ public class BookBizImpl implements BookBiz {
         }
         PageBean pageBean = bookDao.listPage(pageParam, paramMap, "listPage4Agent");
         if (pageBean == null || ListUtils.isEmpty(pageBean.getRecordList())) {
-            return new PageBean();
+            return new PageBean(pageParam.getPageNum(), pageParam.getNumPerPage(), pageBean.getTotalCount(), new ArrayList<>());
         }
         // 填充渠道基础信息
         bookSet.setChannelInfoList(pageBean.getRecordList());