请假要组长和经理同时审批该怎么办？来看看工作流中的会签功能！

@Transactional
public RespBean askForLeave(AskForLeaveVO askForLeaveVO) {
    Map<String, Object> variables = new HashMap<>();
    askForLeaveVO.setName(SecurityContextHolder.getContext().getAuthentication().getName());
    variables.put("name", askForLeaveVO.getName());
    variables.put("days", askForLeaveVO.getDays());
    variables.put("reason", askForLeaveVO.getReason());
    variables.put("userTasks", askForLeaveVO.getApproveUsers());
    try {
        runtimeService.startProcessInstanceByKey("holidayRequest", askForLeaveVO.getName(), variables);
        return RespBean.ok("已提交请假申请");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return RespBean.error("提交申请失败");
}

/**
 * 待审批列表
 *
 * @return
 */
public RespBean leaveList() {
    String identity = SecurityContextHolder.getContext().getAuthentication().getName();
    //找到所有分配给你的任务
    List<Task> tasks = taskService.createTaskQuery().taskAssignee(identity).list();
    //重新组装返回的数据，为每个流程增加任务 id，方便后续执行批准或者拒绝操作
    List<Map<String, Object>> list = new ArrayList<>();
    for (int i = 0; i < tasks.size(); i++) {
        Task task = tasks.get(i);
        Map<String, Object> variables = taskService.getVariables(task.getId());
        variables.put("id", task.getId());
        list.add(variables);
    }
    return RespBean.ok("加载成功", list);
}

public RespBean askForLeaveHandler(ApproveRejectVO approveRejectVO) {
    try {
        Task task = taskService.createTaskQuery().taskId(approveRejectVO.getTaskId()).singleResult();
        boolean approved = approveRejectVO.getApprove();
        Map<String, Object> variables = new HashMap<String, Object>();
        variables.put("approved", approved);
        variables.put("approveUser#" + task.getAssignee(), SecurityContextHolder.getContext().getAuthentication().getName());
        taskService.complete(task.getId(), variables);
        return RespBean.ok("操作成功");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return RespBean.error("操作失败");
}

public RespBean searchResult() {
    String name = SecurityContextHolder.getContext().getAuthentication().getName();
    List<HistoryInfo> infos = new ArrayList<>();
    //未完成流程
    List<HistoricProcessInstance> unFinishedHistoricProcessInstances = historyService.createHistoricProcessInstanceQuery().processInstanceBusinessKey(name).unfinished().orderByProcessInstanceStartTime().desc().list();
    for (HistoricProcessInstance unFinishedHistoricProcessInstance : unFinishedHistoricProcessInstances) {
        HistoryInfo historyInfo = new HistoryInfo();
        Date startTime = unFinishedHistoricProcessInstance.getStartTime();
        Date endTime = unFinishedHistoricProcessInstance.getEndTime();
        List<HistoricVariableInstance> historicVariableInstances = historyService.createHistoricVariableInstanceQuery()
                .processInstanceId(unFinishedHistoricProcessInstance.getId())
                .list();
        System.out.println("historicVariableInstances = " + historicVariableInstances);
        for (HistoricVariableInstance historicVariableInstance : historicVariableInstances) {
            String variableName = historicVariableInstance.getVariableName();
            Object value = historicVariableInstance.getValue();
            if ("reason".equals(variableName)) {
                historyInfo.setReason((String) value);
            } else if ("days".equals(variableName)) {
                historyInfo.setDays(Integer.parseInt(value.toString()));
            } else if ("name".equals(variableName)) {
                historyInfo.setName((String) value);
            } else if (variableName.startsWith("approveUser")) {
                historyInfo.getApproveUsers().add((String) value);
            } else if ("userTask".equals(variableName)) {
                historyInfo.getCandidateUsers().add((String) value);
            }
        }
        historyInfo.setStatus(3);
        historyInfo.setStartTime(startTime);
        historyInfo.setEndTime(endTime);
        infos.add(historyInfo);
    }
    //已结束流程
    List<HistoricProcessInstance> finishHistoricProcessInstances = historyService.createHistoricProcessInstanceQuery().processInstanceBusinessKey(name)
            .finished()
            .orderByProcessInstanceStartTime().desc().list();
    for (HistoricProcessInstance historicProcessInstance : finishHistoricProcessInstances) {
        HistoryInfo historyInfo = new HistoryInfo();
        Date startTime = historicProcessInstance.getStartTime();
        Date endTime = historicProcessInstance.getEndTime();
        List<HistoricVariableInstance> historicVariableInstances = historyService.createHistoricVariableInstanceQuery()
                .processInstanceId(historicProcessInstance.getId())
                .list();
        System.out.println(historicVariableInstances);
        for (HistoricVariableInstance historicVariableInstance : historicVariableInstances) {
            String variableName = historicVariableInstance.getVariableName();
            Object value = historicVariableInstance.getValue();
            if ("reason".equals(variableName)) {
                historyInfo.setReason((String) value);
            } else if ("days".equals(variableName)) {
                historyInfo.setDays(Integer.parseInt(value.toString()));
            } else if ("approved".equals(variableName)) {
                Boolean v = (Boolean) value;
                if (v) {
                    historyInfo.setStatus(1);
                } else {
                    historyInfo.setStatus(2);
                }
            } else if ("name".equals(variableName)) {
                historyInfo.setName((String) value);
            } else if (variableName.startsWith("approveUser")) {
                historyInfo.getApproveUsers().add((String) value);
            } else if ("userTask".equals(variableName)) {
                historyInfo.getCandidateUsers().add((String) value);
            }
        }
        historyInfo.setStartTime(startTime);
        historyInfo.setEndTime(endTime);
        infos.add(historyInfo);
    }
    return RespBean.ok("ok", infos);
}