fix: 修复显示操作null异常

approve-core-service/src/main/java/com/dragonsoft/dcuc/approve/business/impl/WorkFlowBusinessImpl.java

@@ -1,6 +1,8 @@
 package com.dragonsoft.dcuc.approve.business.impl;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.EnumUtil;
+import cn.hutool.core.util.ObjectUtil;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
@@ -223,8 +225,12 @@ public class WorkFlowBusinessImpl implements IWorkFlowBusiness {
         List<TaskDefinitionVo> taskDefinitionVoList = new ArrayList<>();
         if (outgoingVo != null) {
             taskDefinitionVoList = outgoingVo.getTaskDefinitionVoList();
-            for (TaskDefinitionVo taskDefinitionVo : outgoingVo.getTaskDefinitionVoList()) {
-                taskDefinitionKeyList.add(taskDefinitionVo.getTaskDefinitionKey());
+            if (CollUtil.isNotEmpty(taskDefinitionKeyList)) {
+                for (TaskDefinitionVo taskDefinitionVo : taskDefinitionVoList) {
+                    if (ObjectUtil.isNotNull(taskDefinitionVo)) {
+                        taskDefinitionKeyList.add(taskDefinitionVo.getTaskDefinitionKey());
+                    }
+                }
             }
         }