diff --git a/renren-admin/src/main/java/io/renren/modules/activiti/controller/HistoryController.java b/renren-admin/src/main/java/io/renren/modules/activiti/controller/HistoryController.java
index b806fcb7..e046e710 100644
--- a/renren-admin/src/main/java/io/renren/modules/activiti/controller/HistoryController.java
+++ b/renren-admin/src/main/java/io/renren/modules/activiti/controller/HistoryController.java
@@ -210,7 +210,9 @@ public class HistoryController {
             TResourceMountApplyDTO tResourceMountApplyDTO = null;
             TDemandDataDTO tDemandDataDTO = null;
             ResourceDTO resourceDTO = null;
-            if (!activityDTO.getBusinessKey().startsWith("[") && !activityDTO.getBusinessKey().startsWith("{")) { // json 内容（批量申请）
+            if (StringUtils.isNotEmpty(activityDTO.getBusinessKey())
+                    && !activityDTO.getBusinessKey().startsWith("[")
+                    && !activityDTO.getBusinessKey().startsWith("{")) { // json 内容（批量申请）
                 tResourceMountApplyDTO = tResourceMountApplyService.get(Long.valueOf(activityDTO.getBusinessKey()));
                 tDemandDataDTO = tDemandDataService.get(Long.valueOf(activityDTO.getBusinessKey()));
                 resourceDTO = resourceService.get(Long.valueOf(activityDTO.getBusinessKey()));