基于jeecgboot的flowable驳回修改以及发起人设置

<el-radio label="INITIATOR">发起人</el-radio>

if (this.containsKey(this.bpmnElement.businessObject, 'assignee') &&
               this.bpmnElement.businessObject.assignee === '${INITIATOR}') {
            this.defaultTaskForm.dataType = "INITIATOR";
          }
changeDataType(val) {
      if (val === 'INITIATOR') {
        this.userTaskForm.assignee = "${INITIATOR}";
        this.userTaskForm.text = "流程发起人";
        const taskAttr = Object.create(null);
        taskAttr['assignee'] = this.userTaskForm['assignee'] || null;
        window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
      }

//传节点定义key获取当前节点
        List<org.flowable.bpmn.model.Process> processes =  bpmnModel.getProcesses();
        //查看第一个用户任务节点是否是发起人节点
        List<FlowNode> flowNodes = processes.get(0).findFlowElementsOfType(FlowNode.class);
        List<SequenceFlow> outgoingFlows = flowNodes.get(0).getOutgoingFlows();
      //遍历返回下一个节点信息
        for (SequenceFlow outgoingFlow : outgoingFlows) {
            //类型自己判断（获取下个节点是任务节点）
            FlowElement targetFlowElement = outgoingFlow.getTargetFlowElement();
            //下个是节点
           if(targetFlowElement instanceof UserTask){// 下个出口是用户任务，而且是要发起人节点才让保存
               
               if(StringUtils.equals(((UserTask) targetFlowElement).getAssignee(), "${INITIATOR}"))
               {
                   break;
                }
               else {
                   return Result.error("导入失败，流程第一个用户任务节点必须是发起人节点");
               }
            }
        }

SysUser sysUser = iFlowThirdService.getLoginUser();
        identityService.setAuthenticatedUserId(sysUser.getUsername());
        variables.put(ProcessConstants.PROCESS_INITIATOR, sysUser.getUsername());

if (StrUtil.equals(targetUserTask.getAssignee().toString(),"${INITIATOR}")) {//是否为发起人节点
                    //开始节点 设置处理人为申请人
                    taskService.setAssignee(targetTask.getId(), startUserId);
          }