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flowable動態(tài)創(chuàng)建多級流程模板實現(xiàn)demo

更新時間：2023年05月23日 11:15:21 作者：多喝灬丶燙水

這篇文章主要為大家介紹了flowable動態(tài)創(chuàng)建多級流程模板實現(xiàn)demo，有需要的朋友可以借鑒參考下，希望能夠有所幫助，祝大家多多進(jìn)步，早日升職加薪

flowable動態(tài)創(chuàng)建多級流程模板

引入Maven依賴

<dependency>
    <groupId>org.flowable</groupId>
    <artifactId>flowable-spring-boot-starter</artifactId>
    <version>6.6.0</version>
</dependency>

動態(tài)創(chuàng)建流程節(jié)點工具類

/**
 * 動態(tài)創(chuàng)建流程節(jié)點
 */
@Slf4j
@Component
@RequiredArgsConstructor
public class FlowableBpmnHandler {
    /**
     * 創(chuàng)建開始節(jié)點信息
     *
     * @return
     */
    public static FlowElement createStartFlowElement(String id, String name) {
        StartEvent startEvent = new StartEvent();
        startEvent.setId(id);
        startEvent.setName(name);
        return startEvent;
    }
    /**
     * 創(chuàng)建結(jié)束節(jié)點信息
     *
     * @param id
     * @param name
     * @return
     */
    public static FlowElement createEndFlowElement(String id, String name) {
        EndEvent endEvent = new EndEvent();
        endEvent.setId(id);
        endEvent.setName(name);
        return endEvent;
    }
    /**
     * 循環(huán)創(chuàng)建普通任務(wù)節(jié)點信息
     *
     * @param processEntity 流程實體
     * @return
     */
    public static List<UserTask> createCommonUserTask(ProcessEntity processEntity) {
        List<ProcessNode> processNodes = processEntity.getProcessNodeList();
        List<UserTask> userTaskList = Lists.newLinkedList();
        for (int i = 0; i < processNodes.size(); i++) {
            ProcessNode node = processNodes.get(i);
            node.setNodeId(UUIDHelper.randomUUID());
            node.setNodeLevel(i + 1);
            UserTask userTask = new UserTask();
            userTask.setId(TypeEnum.getProcessKey(processEntity.getType()) + "_task_" + node.getNodeId());
            userTask.setCategory(String.valueOf(i + 1));
            userTask.setDocumentation(i == processNodes.size() - 1 ? "true" : "false");
            userTask.setName(node.getNodeName());
            userTaskList.add(userTask);
        }
        return userTaskList;
    }
    /**
     * 創(chuàng)建排它網(wǎng)關(guān)節(jié)點
     *
     * @return
     */
    public static ExclusiveGateway createExclusiveGateway(Integer i) {
        ExclusiveGateway gateway = new ExclusiveGateway();
        gateway.setName("getaway_name_" + i);
        gateway.setId("getaway_id_" + i);
        return gateway;
    }
}

動態(tài)創(chuàng)建流程模板工具類

/**
 * 動態(tài)創(chuàng)建流程模板
 *
 * @author ll
 * @date 2023/04/19 14:28
 **/
@Slf4j
@Component
public class DynamicProcessDefinition {
    @Resource
    private RepositoryService repositoryService;
    public String createProcessDefinition(ProcessEntity processEntity) {
        //數(shù)據(jù)校驗：傳入的數(shù)據(jù)節(jié)點字段：流程配置id、節(jié)點id、節(jié)點順序、節(jié)點描述
        List&lt;ProcessNode&gt; nodeList = processEntity.getProcessNodeList();
        if (CollUtil.isEmpty(nodeList)) {
            throw new RuntimeException("流程節(jié)點不能少于一個，請配置發(fā)起人節(jié)點和至少一個審批節(jié)點");
        }
        BpmnModel bpmnModel = new BpmnModel();
        Process process = new Process();
        bpmnModel.addProcess(process);
        // 流程標(biāo)識
        process.setId(TypeEnum.getProcessKey(processEntity.getType()));
        process.setName(TypeEnum.getProcessKey(processEntity.getType()));
        //開始事件
        FlowElement startEvent = FlowableBpmnHandler.createStartFlowElement("start", "開始");
        process.addFlowElement(startEvent);
        //結(jié)束事件--任務(wù)正常完成
        FlowElement endEvent = FlowableBpmnHandler.createEndFlowElement("end", "結(jié)束");
        process.addFlowElement(endEvent);
        //創(chuàng)建用戶節(jié)點任務(wù)
        List&lt;UserTask&gt; userTaskList = FlowableBpmnHandler.createCommonUserTask(processEntity);
        //構(gòu)建流程模板
        buildProcessTemplate(process, startEvent, endEvent, userTaskList);
        //該流程的流程xml字符串
        //BpmnXMLConverter bpmnXMLConverter = new BpmnXMLConverter();
        //byte[] convertToXML = bpmnXMLConverter.convertToXML(bpmnModel);
        //String bytes = new String(convertToXML);
        //log.info("該流程的流程xml為：{}", bytes);
        // 創(chuàng)建一個新的部署
        Deployment deploy = repositoryService.createDeployment().key(TypeEnum.getProcessKey(processEntity.getType()))
                .name(TypeEnum.getProcessKey(processEntity.getType()))
                .addBpmnModel(TypeEnum.getProcessKey(processEntity.getType()) + ".bpmn", bpmnModel)
                .deploy();
        log.info("部署id:{}", deploy.getId());
        return deploy.getId();
    }
    /**
     * 構(gòu)建流程模板
     *
     * @param process
     * @param startEvent
     * @param endEvent
     * @param userTaskList
     * @return void
     * @author ll
     * @date 2023/04/24 08:53
     */
    private void buildProcessTemplate(Process process, FlowElement startEvent, FlowElement endEvent, List&lt;UserTask&gt; userTaskList) {
        for (int i = 0; i &lt; userTaskList.size(); i++) {
            //用戶任務(wù)
            UserTask userTask = userTaskList.get(i);
            process.addFlowElement(userTask);
            //創(chuàng)建排它網(wǎng)關(guān)節(jié)點
            ExclusiveGateway exclusiveGateway = FlowableBpmnHandler.createExclusiveGateway(i);
            process.addFlowElement(exclusiveGateway);
            //開始事件到第一個節(jié)點
            if (i == 0) {
                // 開始節(jié)點到第一級節(jié)點
                SequenceFlow startSequenceFlow = new SequenceFlow(startEvent.getId(), userTask.getId());
                process.addFlowElement(startSequenceFlow);
            }
            //用戶任務(wù)到網(wǎng)關(guān)節(jié)點
            SequenceFlow sequenceFlow = new SequenceFlow(userTask.getId(), exclusiveGateway.getId());
            sequenceFlow.setName(userTask.getName() + "_開始審批");
            process.addFlowElement(sequenceFlow);
            //同意：取下一步用戶任務(wù)的節(jié)點id，可能為結(jié)束節(jié)點或者用戶任務(wù)節(jié)點
            String nextUserTaskId = endEvent.getId();
            if (userTaskList.size() - i &gt; 1) {
                nextUserTaskId = userTaskList.get(i + 1).getId();
            }
            SequenceFlow sequenceFlowAgree = new SequenceFlow(exclusiveGateway.getId(), nextUserTaskId);
            sequenceFlowAgree.setConditionExpression("${auditResult}");
            sequenceFlowAgree.setName("同意");
            process.addFlowElement(sequenceFlowAgree);
            //不同意：回退到上一步,取上一步的節(jié)點id
            String preUserTaskId = userTaskList.get(0).getId();
            if (i != 0) {
                preUserTaskId = userTaskList.get(i - 1).getId();
            }
            SequenceFlow sequenceFlowRefuse = new SequenceFlow(exclusiveGateway.getId(), preUserTaskId);
            sequenceFlowRefuse.setConditionExpression("${!auditResult}");
            sequenceFlowRefuse.setName("拒絕");
            process.addFlowElement(sequenceFlowRefuse);
        }
    }
}

保存流程配置模板的接口

@Resource
private DynamicProcessDefinition dynamicProcessDefinition;
@RequestMapping("/save")
public Result&lt;String&gt; save(@RequestBody ProcessEntity processEntity) {
    return dynamicProcessDefinition.createProcessDefinition(processEntity);;
}

開啟流程接口

@RequestMapping("/start")
    public String start(@RequestBody AuditData auditData) {
                //業(yè)務(wù)自己定義key
        String businessKey = auditData.getBusinessKey();
        //流程定義key
        String processKey = auditData.getType();
        // 判斷是否啟動流程
        boolean isStartProcess = null != runtimeService.createProcessInstanceQuery()
                .processDefinitionKey(processKey)
                .processInstanceBusinessKey(businessKey)
                .singleResult();
        if (!isStartProcess) {
            //記錄開啟流程的用戶
            HashMap&lt;String, Object&gt; variable = Maps.newHashMap();
            //啟動流程
            ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processKey, businessKey, variable);
            log.info("啟動流程實例成功:processInstanceId={}", processInstance.getId());
        }
        return !isStartProcess ? "流程啟動成功" : "流程啟動失敗";
    }

以上就是flowable動態(tài)創(chuàng)建多級流程模板demo的詳細(xì)內(nèi)容，更多關(guān)于flowable動態(tài)多級流程模板的資料請關(guān)注腳本之家其它相關(guān)文章！

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