deal time format from elastic search

src/main/java/com/zzsn/knowbase/controller/KnowledgeController.java

@@ -75,6 +75,12 @@ public class KnowledgeController {
     @GetMapping(value = "/getById")
     public Result<?> getById(@RequestParam String id)  {
         KnowledgeVO knowledgeVO=knowledgeService.getById(id);
+        if(!knowledgeVO.getPublishDate().isEmpty()){
+            knowledgeVO.setPublishDate(EsDateUtil.esFieldDateMapping(knowledgeVO.getPublishDate()));
+        }
+        if(!knowledgeVO.getVerifyTime().isEmpty()){
+            knowledgeVO.setVerifyTime(EsDateUtil.esFieldDateMapping(knowledgeVO.getVerifyTime()));
+        }
         return Result.OK(knowledgeVO);
     }