5/27 修改查询问题

src/main/java/cn/cslg/pas/service/importPatent/ImportSinglePatentService.java

@@ -440,13 +440,19 @@ public class ImportSinglePatentService {
         }
         //装载申请日
         if (patent.getAppDate() == null) {
-            Date date = DateUtils.strToDate(worldPatentZhuLu.getAppDate());
-            patent.setAppDate(date);
+            if(worldPatentZhuLu.getAppDate()!=null&&!worldPatentZhuLu.getAppDate().equals("")) {
+                Date date = DateUtils.strToDate(worldPatentZhuLu.getAppDate());
+                patent.setAppDate(date);
+            }
+
         }
         //装载公开日
         if (patent.getPublicDate() == null) {
-            Date date = DateUtils.strToDate(worldPatentZhuLu.getPubDate());
-            patent.setPublicDate(date);
+            if(worldPatentZhuLu.getPubDate()!=null&&!worldPatentZhuLu.getPubDate().equals("")) {
+                Date date = DateUtils.strToDate(worldPatentZhuLu.getPubDate());
+                patent.setPublicDate(date);
+            }
+
         }
         //装载IPC分类号
         if (patent.getIpc() == null || patent.getIpc().size() == 0) {