/**
 * @param task             任務Id
 * @param variables        ...
 * @param targetActivityId 節點ID
 * @throws Exception ...
 * @creator 毛誌濤
 * @date 2018/2/25
 * @描述 提交流程至某節點
 */
private void commitProcess(Task task, Map<String, Object> variables, String targetActivityId) {
    // TODO: 2018/2/25 未測試
    //獲取當前節點Id
    String currentActivityId = task.getTaskDefinitionKey();
    //獲取模型實體
    String processDefinitionId = task.getProcessDefinitionId();
    BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
    //獲取當前節點
    FlowElement currentFlow = bpmnModel.getFlowElement(currentActivityId);
    //獲取目標節點
    FlowElement targetFlow = bpmnModel.getFlowElement(targetActivityId);
    //創建連線
    String uuid = UUID.randomUUID().toString().replace("-", "");
    SequenceFlow newSequenceFlow = new SequenceFlow();
    newSequenceFlow.setId(uuid);
    newSequenceFlow.setSourceFlowElement(currentFlow);
    newSequenceFlow.setTargetFlowElement(targetFlow);
    //設置條件
    newSequenceFlow.setConditionExpression("${\"+uuid+\"==\"" + uuid + "\"}");
    //添加連線至bpmn
    bpmnModel.getMainProcess().addFlowElement(newSequenceFlow);
    //添加變量（保證這根線獨一無二）
    variables.clear();//清空變量，防止幹擾
    variables.put(uuid, uuid);
    //提交
    taskService.addComment(task.getId(), task.getProcessInstanceId(), "撤回");
    //完成任務
    taskService.complete(task.getId(), variables);
    //刪除連線
    bpmnModel.getMainProcess().removeFlowElement(uuid);
}
 

activiti6.0 提交流程至某節點 ，可用於實現駁回操作（未測試）