fix

src/main/java/com/zzsn/knowbase/service/impl/KnowledgeServiceImpl.java

@@ -432,20 +432,24 @@ class KnowledgeServiceImpl implements IKnowledgeService {
         } catch (IOException e) {
             e.printStackTrace();
         }
-        SearchHit[] searchHits = searchResponse.getHits().getHits();
-        List<KnowledgeVO> list = new ArrayList<>();
-        for (SearchHit hit : searchHits) {
-            String queryInfo = hit.getSourceAsString();
-            KnowledgeVO info = JSONUtil.toBean(queryInfo, KnowledgeVO.class);
-            info.setPublishDate(EsDateUtil.esFieldDateMapping(info.getPublishDate()));
-            info.setVerifyTime(EsDateUtil.esFieldDateMapping(info.getVerifyTime()));
-            list.add(info);
-        }
 
-        IPage<KnowledgeVO> pageData = new Page<>(pageNo, pageSize, searchResponse.getHits().getTotalHits().value);
+        if(null!=searchResponse&&null!= searchResponse.getHits()){
+            SearchHit[] searchHits = searchResponse.getHits().getHits();
+            List<KnowledgeVO> list = new ArrayList<>();
+            for (SearchHit hit : searchHits) {
+                String queryInfo = hit.getSourceAsString();
+                KnowledgeVO info = JSONUtil.toBean(queryInfo, KnowledgeVO.class);
+                info.setPublishDate(EsDateUtil.esFieldDateMapping(info.getPublishDate()));
+                info.setVerifyTime(EsDateUtil.esFieldDateMapping(info.getVerifyTime()));
+                list.add(info);
+            }
 
-        pageData.setRecords(list);
-        return pageData;
+            IPage<KnowledgeVO> pageData = new Page<>(pageNo, pageSize, searchResponse.getHits().getTotalHits().value);
+
+            pageData.setRecords(list);
+            return pageData;
+        }
+        return new Page<>(pageNo, pageSize, 0);
     }
 
     @Override