activiti流程设计节任务点拆分

根据流程节点分支拆分，每遇到一个分支，就拆分成一条链路。

如下图所示，可拆分成3条链路：

（1）施工单位审核-->监理单位标段负责人审核-->监理单位执行总监--审核-->设计负责人转办-->项目法人建设现场指挥部负责人审核-->施工单位签字盖章-->监理单位标段负责人签字

（2）施工单位审核-->监理单位标段负责人审核-->监理单位执行总监--审核-->设计负责人转办-->施工单位签字盖章-->监理单位标段负责人签字

（3）施工单位审核-->监理单位标段负责人审核-->监理单位执行总监--审批-->监理单位总监审核-->监理单位标段负责人签字

节点信息及其关联关系存储在xml中（见下文  4. xml）。

第一步，先解析xml，取出任务、线条、判断条件；

第二步，根据线条、判断条件中的 incoming、outgoing 梳理各个任务之间的前后顺序；

第三步，根据任务之间的前后关系，拆分链路。

具体的 java 代码如下：

1. 依赖包

<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-spring-boot-starter</artifactId>
    <version>7.5.1</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-json-converter</artifactId>
    <version>7.1.0.M6</version>
</dependency>

2. 解析xml、拆分链路工具类

经过测试发现，domParseBpmnXml 比 parseBpmnXml 速度快大概200毫秒。

import java.io.StringReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

import com.alibaba.fastjson.JSON;


import lombok.extern.slf4j.Slf4j;

/**
 * 流程图设计 工具类
 * 
 * @author 
 * @date 2024/10/14 星期一
 * @since JDK 11
 */
@Slf4j
public class BpmActModelUtils {
	/** 开始节点Key */
	public static final String START_EVENT_KEY = "startEvent";

	/** 用户任务key */
	public static final String USER_TASK_KEY = "userTaskList";

	/** 服务任务key */
	public static final String SERVICE_TASK_KEY = "serviceTaskList";

	/** 普通任务key */
	public static final String NORMAL_TASK_KEY = "normalTaskList";

	/** 用户任务连接线条Key */
	public static final String SEQUENCE_FLOW_KEY = "sequenceFlowList";

	/** 判断条件Key */
	public static final String EXCLUSIVE_GATEWAY_KEY = "exclusiveGatewayList";

	/** 并行判断条件Key */
	public static final String PARALLEL_GATEWAY_KEY = "parallelGatewayList";

	/** 结束节点Key */
	public static final String END_EVENT_KEY = "endEvent";

	/**
	 * 解析流程图设计节点属性
	 *
	 * @date 2024-10-14
	 * @param bpmnXml 流程图设计节点属性
	 * @return Map
	 * @since JDK 11
	 * @author 
	 */
	public static Map<String, List<?>> parseBpmnXml(String bpmnXml) {
		if (StringUtils.isBlank(bpmnXml)) {
			return null;
		}
		Map<String, List<?>> map = new HashMap<>();

		// xml转json
		String jsonStr = JsonUtils.xmlToJson(bpmnXml);

		String process = JsonUtils.getJsonValue(jsonStr, "bpmn2:process");

		if (StringUtils.isBlank(process)) {
			return null;
		}
		process = process.replaceAll("@camunda:", "");
		process = process.replaceAll("@xmlns:", "");
		process = process.replaceAll("bpmn2:", "");
		process = process.replaceAll("@", "");

		// 普通任务
		String normalTask = JsonUtils.getJsonValue(process, "task");

		if (StringUtils.isNotBlank(normalTask)) {
			List<BpmnNormalTaskVo> normalTaskList = JSON.parseArray(normalTask, BpmnNormalTaskVo.class);

			if (CollectionUtils.isNotEmpty(normalTaskList)) {
				// 普通任务
				map.put(NORMAL_TASK_KEY, normalTaskList);
			}
		}
		// 用户任务
		String userTask = JsonUtils.getJsonValue(process, "userTask");

		if (StringUtils.isNotBlank(userTask)) {
			// 用户任务
			List<BpmnUserTaskVo> userTaskList = JSON.parseArray(userTask, BpmnUserTaskVo.class);

			if (CollectionUtils.isNotEmpty(userTaskList)) {
				// 用户任务
				map.put(USER_TASK_KEY, userTaskList);
			}
		}
		// 用户任务连接线条
		String sequenceFlow = JsonUtils.getJsonValue(process, "sequenceFlow");

		if (StringUtils.isNotBlank(sequenceFlow)) {
			sequenceFlow = sequenceFlow.replaceAll("#text", "text");
			sequenceFlow = sequenceFlow.replaceAll("xsi:", "");
			// 用户任务连接线条
			List<BpmnSequenceFlowVo> sequenceFlowList = JSON.parseArray(sequenceFlow, BpmnSequenceFlowVo.class);

			if (CollectionUtils.isNotEmpty(sequenceFlowList)) {
				// 用户任务
				map.put(SEQUENCE_FLOW_KEY, sequenceFlowList);
			}
		}
		// 判断条件
		String exclusiveGateway = JsonUtils.getJsonValue(process, "exclusiveGateway");

		if (StringUtils.isNotBlank(exclusiveGateway)) {
			List<BpmnExclusiveGatewayVo> exclusiveGatewayList = JSON.parseArray(exclusiveGateway,
					BpmnExclusiveGatewayVo.class);

			if (CollectionUtils.isNotEmpty(exclusiveGatewayList)) {
				// 判断条件
				map.put(EXCLUSIVE_GATEWAY_KEY, exclusiveGatewayList);
			}
		}
		// 服务任务
		String serviceTask = JsonUtils.getJsonValue(process, "serviceTask");

		if (StringUtils.isNotBlank(serviceTask)) {
			List<BpmServiceTaskVo> serviceTaskList = JSON.parseArray(serviceTask, BpmServiceTaskVo.class);

			if (CollectionUtils.isNotEmpty(serviceTaskList)) {
				// 服务任务
				map.put(SERVICE_TASK_KEY, serviceTaskList);
			}
		}
		return map;
	}

	/**
	 * DOM解析流程图设计节点属性
	 *
	 * @date 2024-10-18
	 * @param bpmnXml 流程图设计节点属性
	 * @return Map
	 * @since JDK 11
	 * @author 
	 */
	public static Map<String, List<?>> domParseBpmnXml(String bpmnXml) {
		if (StringUtils.isBlank(bpmnXml)) {
			return null;
		}
		try {
			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
			DocumentBuilder builder = factory.newDocumentBuilder();
			// 加载xml文件
			Document document = builder.parse(new InputSource(new StringReader(bpmnXml)));

			Map<String, List<?>> map = new HashMap<>();

			// 开始节点
			BpmnStartEventVo startEvent = domParseStartEventOfBpmnXml(document);
			// 普通任务
			List<BpmnNormalTaskVo> normalTaskList = domParseNormalTaskOfBpmnXml(document);
			// 用户任务
			List<BpmnUserTaskVo> userTaskList = domParseUserTaskOfBpmnXml(document);
			// 服务任务
			List<BpmServiceTaskVo> serviceTaskList = domParseServiceTaskOfBpmnXml(document);
			// 用户任务连接线条
			List<BpmnSequenceFlowVo> sequenceFlowList = domParseSequenceFlowOfBpmnXml(document);
			// 判断条件
			List<BpmnExclusiveGatewayVo> exclusiveGatewayList = domParseExclusiveGatewayOfBpmnXml(document);
			// 并行判断条件
			List<BpmnParallelGatewayVo> parallelGatewayList = domParseParallelGatewayOfBpmnXml(document);
			// 结束节点
			List<BpmnEndEventVo> endEventList = domParseEndEventOfBpmnXml(document);

			if (startEvent != null) {
				// 开始节点
				map.put(START_EVENT_KEY, new ArrayList<>(Arrays.asList(startEvent)));
			}
			if (CollectionUtils.isNotEmpty(normalTaskList)) {
				// 普通任务
				map.put(NORMAL_TASK_KEY, normalTaskList);
			}
			if (CollectionUtils.isNotEmpty(userTaskList)) {
				// 用户任务
				map.put(USER_TASK_KEY, userTaskList);
			}
			if (CollectionUtils.isNotEmpty(serviceTaskList)) {
				// 服务任务
				map.put(SERVICE_TASK_KEY, serviceTaskList);
			}
			if (CollectionUtils.isNotEmpty(sequenceFlowList)) {
				// 用户任务连接线条
				map.put(SEQUENCE_FLOW_KEY, sequenceFlowList);
			}
			if (CollectionUtils.isNotEmpty(exclusiveGatewayList)) {
				// 判断条件
				map.put(EXCLUSIVE_GATEWAY_KEY, exclusiveGatewayList);
			}
			if (CollectionUtils.isNotEmpty(parallelGatewayList)) {
				// 并行判断条件
				map.put(PARALLEL_GATEWAY_KEY, parallelGatewayList);
			}
			if (CollectionUtils.isNotEmpty(endEventList)) {
				// 结束节点
				map.put(END_EVENT_KEY, endEventList);
			}
			return map;
		} catch (Exception e) {
			log.error(String.format("dom解析流程图设计节点属性-失败.bpmnXml:%s", bpmnXml), e);
			return null;
		}
	}

	/**
	 * 获取流程图设计节点属性中的普通任务节点
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:task </p>
	 * @date 2024-10-18
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmnNormalTaskVo> domParseNormalTaskOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 普通任务
		NodeList responsedata = document.getElementsByTagName("bpmn2:task");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 普通任务
		List<BpmnNormalTaskVo> normalTaskList = new ArrayList<>();
		BpmnNormalTaskVo normalTask = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个普通任务
			Element element = (Element) responsedata.item(i);
			// 普通任务节点属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			normalTask = new BpmnNormalTaskVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 普通任务节点属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					normalTask.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					String nodeValue = attr.getNodeValue();
					if (StringUtils.isNotBlank(nodeValue)) {
						nodeValue = nodeValue.replaceAll("&#10;", "");
						nodeValue = nodeValue.replaceAll("\n", "");
					}
					normalTask.setName(nodeValue);
				}
			}
			// 普通任务子节点
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			NodeList outgoingNodeList = element.getElementsByTagName("bpmn2:outgoing");
			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);
			// 下一个节点id
			List<String> outgoing = getChildrenText(outgoingNodeList);

			if (CollectionUtils.isNotEmpty(incoming)) {
				normalTask.setIncoming(incoming);
			}
			if (CollectionUtils.isNotEmpty(outgoing)) {
				normalTask.setOutgoing(outgoing);
			}
			normalTaskList.add(normalTask);
		}
		return normalTaskList;
	}

	/**
	 * 获取流程图设计节点属性中的用户任务节点
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:userTask </p>
	 * @date 2024-10-18
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmnUserTaskVo> domParseUserTaskOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 用户任务
		NodeList responsedata = document.getElementsByTagName("bpmn2:userTask");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 用户任务
		List<BpmnUserTaskVo> userTaskList = new ArrayList<>();
		BpmnUserTaskVo userTask = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个用户任务
			Element element = (Element) responsedata.item(i);
			// 用户任务节点属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			userTask = new BpmnUserTaskVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 用户任务节点属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					userTask.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					String nodeValue = attr.getNodeValue();
					if (StringUtils.isNotBlank(nodeValue)) {
						nodeValue = nodeValue.replaceAll("&#10;", "");
						nodeValue = nodeValue.replaceAll("\n", "");
					}
					userTask.setName(nodeValue);
				}
			}
			// 用户任务子节点
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			NodeList outgoingNodeList = element.getElementsByTagName("bpmn2:outgoing");
			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);
			// 下一个节点id
			List<String> outgoing = getChildrenText(outgoingNodeList);

			if (CollectionUtils.isNotEmpty(incoming)) {
				userTask.setIncoming(incoming);
			}
			if (CollectionUtils.isNotEmpty(outgoing)) {
				userTask.setOutgoing(outgoing);
			}
			userTaskList.add(userTask);
		}
		return userTaskList;
	}

	/**
	 * 获取流程图设计节点属性中的服务任务节点
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:serviceTask </p>
	 * @date 2024-10-18
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmServiceTaskVo> domParseServiceTaskOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 服务任务
		NodeList responsedata = document.getElementsByTagName("bpmn2:serviceTask");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 服务任务
		List<BpmServiceTaskVo> sereviceTaskList = new ArrayList<>();
		BpmServiceTaskVo serviceTask = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个服务任务
			Element element = (Element) responsedata.item(i);
			// 服务任务节点属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			serviceTask = new BpmServiceTaskVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 服务任务节点属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					serviceTask.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					String nodeValue = attr.getNodeValue();
					if (StringUtils.isNotBlank(nodeValue)) {
						nodeValue = nodeValue.replaceAll("&#10;", "");
						nodeValue = nodeValue.replaceAll("\n", "");
					}
					serviceTask.setName(nodeValue);
				}
			}
			// 服务任务子节点
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);

			if (CollectionUtils.isNotEmpty(incoming)) {
				serviceTask.setIncoming(incoming.get(0));
			}
			sereviceTaskList.add(serviceTask);
		}
		return sereviceTaskList;
	}

	/**
	 * 获取流程图设计节点属性中的用户任务连接线条
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:sequenceFlow </p>
	 * @date 2024-10-22
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmnSequenceFlowVo> domParseSequenceFlowOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 连接线条
		NodeList responsedata = document.getElementsByTagName("bpmn2:sequenceFlow");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 连接线条
		List<BpmnSequenceFlowVo> sequenceFlowList = new ArrayList<>();
		BpmnSequenceFlowVo sequenceFlow = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个连接线条
			Element element = (Element) responsedata.item(i);
			// 连接线条属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			sequenceFlow = new BpmnSequenceFlowVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 连接线条属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					sequenceFlow.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					sequenceFlow.setName(attr.getNodeValue());
				}
				if ("sourceRef".equalsIgnoreCase(attr.getNodeName())) {
					// 上一个节点id
					sequenceFlow.setSourceRef(attr.getNodeValue());
				}
				if ("targetRef".equalsIgnoreCase(attr.getNodeName())) {
					// 下一个节点
					sequenceFlow.setTargetRef(attr.getNodeValue());
				}
			}
			// 判断条件表达式
			NodeList condExprNodeList = element.getElementsByTagName("bpmn2:conditionExpression");

			if (condExprNodeList != null && condExprNodeList.getLength() > 0) {
				Node cndExprNode = condExprNodeList.item(0);
				// 判断条件表达式
				BpmnConditionExpressionVo condExpr = new BpmnConditionExpressionVo();
				condExpr.setText(cndExprNode.getTextContent());

				// 判断条件表达式属性
				NamedNodeMap cndExprNamedNodeMap = cndExprNode.getAttributes();

				for (int ii = 0; ii < cndExprNamedNodeMap.getLength(); ii++) {
					// 判断条件表达式属性
					Node attr = cndExprNamedNodeMap.item(ii);

					if ("xsi:type".equalsIgnoreCase(attr.getNodeName())) {
						condExpr.setType(attr.getNodeValue());
					}
				}
				sequenceFlow.setConditionExpression(condExpr);
			}
			sequenceFlowList.add(sequenceFlow);
		} // end of for (int i = 0; i < responsedata.getLength(); i++)
		return sequenceFlowList;
	}

	/**
	 * 获取流程图设计节点属性中的判断条件
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:exclusiveGateway </p>
	 * @date 2024-10-22
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmnExclusiveGatewayVo> domParseExclusiveGatewayOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 判断条件
		NodeList responsedata = document.getElementsByTagName("bpmn2:exclusiveGateway");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 判断条件
		List<BpmnExclusiveGatewayVo> exclusiveGatewayList = new ArrayList<>();
		BpmnExclusiveGatewayVo exclusiveGateway = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个判断条件
			Element element = (Element) responsedata.item(i);
			// 判断条件属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			exclusiveGateway = new BpmnExclusiveGatewayVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 判断条件属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					exclusiveGateway.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					exclusiveGateway.setName(attr.getNodeValue());
				}
			}
			// 子节点（上一个节点）
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			// 子节点（下一个节点）
			NodeList outgoingNodeList = element.getElementsByTagName("bpmn2:outgoing");

			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);
			// 下一个节点
			List<String> outgoing = getChildrenText(outgoingNodeList);

			exclusiveGateway.setIncoming(incoming);
			exclusiveGateway.setOutgoing(outgoing);

			exclusiveGatewayList.add(exclusiveGateway);
		} // end of for (int i = 0; i < responsedata.getLength(); i++)
		return exclusiveGatewayList;
	}

	/**
	 * 获取流程图设计节点属性中的并行判断条件
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:parallelGateway </p>
	 * @date 2024-10-23
	 * @param document xml文档
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<BpmnParallelGatewayVo> domParseParallelGatewayOfBpmnXml(Document document) {
		/* 设计计量支付-环水保 中存在 bpmn2:parallelGateway */
		if (document == null) {
			return null;
		}
		// 判断条件
		NodeList responsedata = document.getElementsByTagName("bpmn2:parallelGateway");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		// 判断条件
		List<BpmnParallelGatewayVo> parallelGatewayList = new ArrayList<>();
		BpmnParallelGatewayVo parallelGateway = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个判断条件
			Element element = (Element) responsedata.item(i);
			// 判断条件属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			parallelGateway = new BpmnParallelGatewayVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 判断条件属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					parallelGateway.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					parallelGateway.setName(attr.getNodeValue());
				}
			}
			// 子节点（上一个节点）
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			// 子节点（下一个节点）
			NodeList outgoingNodeList = element.getElementsByTagName("bpmn2:outgoing");

			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);
			// 下一个节点
			List<String> outgoing = getChildrenText(outgoingNodeList);

			parallelGateway.setIncoming(incoming);
			parallelGateway.setOutgoing(outgoing);

			parallelGatewayList.add(parallelGateway);
		} // end of for (int i = 0; i < responsedata.getLength(); i++)
		return parallelGatewayList;
	}

	/**
	 * 按分支拆分任务链条
	 *
	 * @date 2024-10-24
	 * @param bpmnName 流程名称
	 * @param list     所有任务
	 * @return List
	 * @since JDK 11
	 * @author 
	 */
	public static List<List<BpmActModelUserTaskVo>> splitUserTasks(String bpmnName, List<BpmActModelUserTaskVo> list) {
		if (CollectionUtils.isEmpty(list)) {
			log.info("按分支拆分任务链条,所有任务为空");
			return new ArrayList<>();
		}
		// 按 activityId 分组
		Map<String, List<BpmActModelUserTaskVo>> map = list.stream().collect(
				Collectors.groupingBy(BpmActModelUserTaskVo::getActivityId, LinkedHashMap::new, Collectors.toList()));
		// 第一个任务节点
		Optional<BpmActModelUserTaskVo> firstOpt = list.stream().filter(o -> o.getSort() != null && o.getSort() == 1)
				.findFirst();

		BpmActModelUserTaskVo firstTask = firstOpt.orElse(null);

		if (firstTask == null) {
			log.info("按分支拆分任务链条,第一个任务节点不存在.所有任务:{}", com.alibaba.fastjson2.JSON.toJSONString(list));
			return new ArrayList<>();
		}
		// 最终拆分结果
		List<List<BpmActModelUserTaskVo>> resultList = new ArrayList<>();
		// 用于保存当前任务节点及其之前的任务节点
		List<BpmActModelUserTaskVo> initItemList = new ArrayList<>();

		initItemList.add(firstTask);

		recursionNextTask(resultList, firstTask, initItemList, map);

		// log.info("allList:\r\n{}", JSON.toJSONString(resultList));

		return resultList;
	}

	/**
	 * 根据当前任务节点递归拆分
	 *
	 * @date 2024-10-25
	 *
	 * @param result       拆分最终结果
	 * @param node         当前任务节点
	 * @param initItemList 用于保存当前任务节点及其之前的任务节点
	 * @param map          所有任务节点
	 * @since JDK 11
	 * @author 
	 */
	public static void recursionNextTask(List<List<BpmActModelUserTaskVo>> result, BpmActModelUserTaskVo node,
			List<BpmActModelUserTaskVo> initItemList, Map<String, List<BpmActModelUserTaskVo>> map) {

		if (node.getNextList() == null || node.getNextList().size() <= 0) {
			/* 最后一个任务节点 */
			result.add(initItemList);
			return;
		}
		// node的下一个节点
		List<BpmActModelUserTaskVo> nextList = node.getNextList();

		for (int i = 0; i < nextList.size(); i++) {
			BpmActModelUserTaskVo child = nextList.get(i);

			BpmActModelUserTaskVo taskVo = map.get(child.getActivityId()).get(0);

			child.setNextList(taskVo.getNextList());

			List<BpmActModelUserTaskVo> cPath = new ArrayList<>();
			cPath.addAll(initItemList);
			cPath.add(child);
			recursionNextTask(result, child, cPath, map);
		}
	}

	/**
	 * 获取流程图设计节点属性中的开始节点
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:startEvent </p>
	 * @date 2024-10-22
	 * @param document xml文档
	 * @return BpmnStartEventVo
	 * @since JDK 11
	 * @author 
	 */
	private static BpmnStartEventVo domParseStartEventOfBpmnXml(Document document) {
		if (document == null) {
			return null;
		}
		// 开始节点
		NodeList responsedata = document.getElementsByTagName("bpmn2:startEvent");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		BpmnStartEventVo startEvent = new BpmnStartEventVo();
		// 只有一个开始节点
		Element element = (Element) responsedata.item(0);
		// 开始节点的属性
		NamedNodeMap namedNodeMap = element.getAttributes();

		for (int i = 0; i < namedNodeMap.getLength(); i++) {
			// 开始节点的属性
			Node attr = namedNodeMap.item(i);

			if ("id".equalsIgnoreCase(attr.getNodeName())) {
				startEvent.setId(attr.getNodeValue());
			}
			if ("name".equalsIgnoreCase(attr.getNodeName())) {
				String nodeValue = attr.getNodeValue();
				if (StringUtils.isNotBlank(nodeValue)) {
					nodeValue = nodeValue.replaceAll("&#10;", "");
					nodeValue = nodeValue.replaceAll("\n", "");
				}
				startEvent.setName(nodeValue);
			}
		}
		// 子节点
		NodeList outgoingNodeList = element.getElementsByTagName("bpmn2:outgoing");

		if (outgoingNodeList != null && outgoingNodeList.getLength() > 0) {
			// 下一个节点
			List<String> outgoing = getChildrenText(outgoingNodeList);

			startEvent.setOutgoing(CollectionUtils.isEmpty(outgoing) ? "" : outgoing.get(0));
		}
		return startEvent;
	}

	/**
	 * 获取流程图设计节点属性中的结束节点
	 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:endEvent </p>
	 * @date 2024-10-22
	 * @param document xml文档
	 * @return BpmnStartEventVo
	 * @since JDK 11
	 * @author 
	 */
	private static List<BpmnEndEventVo> domParseEndEventOfBpmnXml(Document document) {
		// 结束节点
		NodeList responsedata = document.getElementsByTagName("bpmn2:endEvent");

		if (responsedata == null || responsedata.getLength() == 0) {
			return null;
		}
		List<BpmnEndEventVo> endEventList = new ArrayList<>();
		BpmnEndEventVo endEvent = null;

		for (int i = 0; i < responsedata.getLength(); i++) {
			// 每一个结束节点
			Element element = (Element) responsedata.item(i);
			// 结束节点的属性
			NamedNodeMap namedNodeMap = element.getAttributes();

			endEvent = new BpmnEndEventVo();

			for (int j = 0; j < namedNodeMap.getLength(); j++) {
				// 结束节点的属性
				Node attr = namedNodeMap.item(j);

				if ("id".equalsIgnoreCase(attr.getNodeName())) {
					endEvent.setId(attr.getNodeValue());
				}
				if ("name".equalsIgnoreCase(attr.getNodeName())) {
					String nodeValue = attr.getNodeValue();
					if (StringUtils.isNotBlank(nodeValue)) {
						nodeValue = nodeValue.replaceAll("&#10;", "");
						nodeValue = nodeValue.replaceAll("\n", "");
					}
					endEvent.setName(nodeValue);
				}
			}
			// 子节点
			NodeList incomingNodeList = element.getElementsByTagName("bpmn2:incoming");
			// 上一个节点id
			List<String> incoming = getChildrenText(incomingNodeList);

			if (CollectionUtils.isNotEmpty(incoming)) {
				endEvent.setIncoming(incoming);
			}
			endEventList.add(endEvent);
		}
		return endEventList;
	}

	private static List<String> getChildrenText(NodeList nodeList) {
		if (nodeList == null || nodeList.getLength() == 0) {
			return null;
		}
		List<String> list = new ArrayList<>();

		for (int i = 0; i < nodeList.getLength(); i++) {
			Node node = nodeList.item(i);

			if (node != null && StringUtils.isNotBlank(node.getTextContent())) {
				list.add(node.getTextContent());
			}
		}
		return list;
	}
}

3. 测试（JUnit 5）

执行 domParseBpmnXml()

import java.io.File;
import java.io.FileInputStream;
import java.io.StringReader;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.TreeSet;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.xpath.XPathConstants;

import cn.hutool.core.io.IoUtil;

import lombok.extern.slf4j.Slf4j;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.activiti.engine.repository.ModelQuery;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.xerces.dom.AttributeMap;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.w3c.dom.Document;

import com.alibaba.fastjson2.JSON;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.XmlUtil;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

@Slf4j
public class TestBpmActModelUtils {

	@BeforeEach
	public void setUp() {
	}

	@Test
	public void domParseBpmnXml() {
		long startTime = System.currentTimeMillis();
        
		String fileName = "党建管理--测试流程20241024";
		String basePath = "F:\\xml_files\\BpmActModelInfo\\";
		String filePath = basePath + fileName + ".xml";

		try (FileInputStream in = new FileInputStream(filePath);) {
			String xml = IOUtils.toString(in, StandardCharsets.UTF_8);

            // 解析xml（上面说明中的 第一步）
			Map<String, List<?>> map = BpmActModelUtils.domParseBpmnXml(xml);

			System.out.println("DOM解析xml文件-结束.耗时 " + (System.currentTimeMillis() - startTime) + " 毫秒");

			// 开始节点
			BpmnStartEventVo startEvent = null;
			// 普通任务
			List<BpmnNormalTaskVo> normalTaskList = new ArrayList<>();
			// 用户任务
			List<BpmnUserTaskVo> userTaskList = new ArrayList<>();
			// 服务任务
			List<BpmServiceTaskVo> serviceTaskList = new ArrayList<>();
			// 用户任务连接线条
			List<BpmnSequenceFlowVo> sequenceFlowList = new ArrayList<>();
			// 判断条件
			List<BpmnExclusiveGatewayVo> exclusiveGatewayList = new ArrayList<>();
			// 并行判断条件
			List<BpmnParallelGatewayVo> parallelGatewayList = new ArrayList();
			// 结束节点
			List<BpmnEndEventVo> endEventList = new ArrayList<>();

			if (map != null && !map.isEmpty()) {
				if (map.containsKey(BpmActModelUtils.START_EVENT_KEY)) {
					// 开始节点（只有一个）
					List<BpmnStartEventVo> startEventList = (List<BpmnStartEventVo>) map
							.get(BpmActModelUtils.START_EVENT_KEY);

					startEvent = startEventList.get(0);
				}
				if (map.containsKey(BpmActModelUtils.USER_TASK_KEY)) {
					// 用户任务
					userTaskList = (List<BpmnUserTaskVo>) map.get(BpmActModelUtils.USER_TASK_KEY);
				}
				if (map.containsKey(BpmActModelUtils.NORMAL_TASK_KEY)) {
					// 普通任务
					normalTaskList = (List<BpmnNormalTaskVo>) map.get(BpmActModelUtils.NORMAL_TASK_KEY);
				}
				if (map.containsKey(BpmActModelUtils.SERVICE_TASK_KEY)) {
					// 服务任务
					serviceTaskList = (List<BpmServiceTaskVo>) map.get(BpmActModelUtils.SERVICE_TASK_KEY);
				}
				if (map.containsKey(BpmActModelUtils.SEQUENCE_FLOW_KEY)) {
					// 用户任务连接线条
					sequenceFlowList = (List<BpmnSequenceFlowVo>) map.get(BpmActModelUtils.SEQUENCE_FLOW_KEY);
				}
				if (map.containsKey(BpmActModelUtils.EXCLUSIVE_GATEWAY_KEY)) {
					// 判断条件
					exclusiveGatewayList = (List<BpmnExclusiveGatewayVo>) map.get(BpmActModelUtils.EXCLUSIVE_GATEWAY_KEY);
				}
				if (map.containsKey(BpmActModelUtils.PARALLEL_GATEWAY_KEY)) {
					// 并行判断条件
					parallelGatewayList = (List<BpmnParallelGatewayVo>) map.get(BpmActModelUtils.PARALLEL_GATEWAY_KEY);
				}
				if (map.containsKey(BpmActModelUtils.END_EVENT_KEY)) {
					// 结束节点
					endEventList = (List<BpmnEndEventVo>) map.get(BpmActModelUtils.END_EVENT_KEY);
				}
			}
			if (startEvent == null) {
				System.out.println("------ 开始节点不存在 ------");
				return;
			}
			// 合并用户任务、服务任务
			userTaskList = this.mergeUserAndServiceTask(userTaskList, serviceTaskList);
			// 合并用户任务、普通任务
			userTaskList = this.mergeUserAndNormalTask(userTaskList, normalTaskList);

			if (CollectionUtils.isEmpty(userTaskList)) {
				System.out.println("------ 任务节点为空 ------");
				return;
			}
			// 合并判断条件、并行判断条件
			exclusiveGatewayList = this.mergeGateway(exclusiveGatewayList, parallelGatewayList);

			// 任务节点及之间的关系（上面说明中的 第二步）
			List<BpmActModelUserTaskVo> result = new ArrayList<>();
			BpmActModelUserTaskVo bpmActModelUserTaskVo = null;

			// 循环任务节点
			for (BpmnUserTaskVo userTask : userTaskList) {
				// 当前节点id
				String id = userTask.getId();
				// 用户任务名称
				String name = userTask.getName();
				// 上一个节点id
				List<String> incoming = userTask.getIncoming();
				// 下一个节点id（线条）
				List<String> outgoing = userTask.getOutgoing();

				// 任务节点及之间的关系
				bpmActModelUserTaskVo = new BpmActModelUserTaskVo();
				bpmActModelUserTaskVo.setActivityId(id);
				bpmActModelUserTaskVo.setActivityName(name);

				if (incoming != null && incoming.contains(startEvent.getOutgoing())) {
					/* 上一个节点是开始节点 */
					bpmActModelUserTaskVo.setSort(1);
				}
				if (CollectionUtils.isNotEmpty(outgoing)) {
					for (String userTaskOut : outgoing) {
						// 用户任务节点的下一个是线条
						Optional<BpmnSequenceFlowVo> sequenceFlowOpt = sequenceFlowList.stream()
								.filter(f -> f.getId().equalsIgnoreCase(userTaskOut)).findFirst();

						if (sequenceFlowOpt.isPresent()) {
							/* 存在下一个节点 */
							BpmnSequenceFlowVo sequenceFlow = sequenceFlowOpt.get();
							// 线条的下一个节点
							String targetRef = sequenceFlow.getTargetRef();

							if (StringUtils.isNotBlank(targetRef)) {
								// 下一个用户任务
								List<BpmActModelUserTaskVo> nextList = new ArrayList<>();
								BpmActModelUserTaskVo next = null;

								if (targetRef.toUpperCase().contains("GATEWAY")) {
									/* 线条的下一个节点是判断节点 */
									this.findNextUserTaskByGateway(targetRef, userTaskList, sequenceFlowList,
											exclusiveGatewayList, nextList);
								} else if (targetRef.toUpperCase().contains("ACTIVITY")) {
									/* 线条的下一个节点是用户任务节点 */
									next = new BpmActModelUserTaskVo();
									next.setActivityId(targetRef);
									next.setActivityName(this.getUserTaskName(targetRef, userTaskList));

									nextList.add(next);
								}
								bpmActModelUserTaskVo.setNextListSize(CollectionUtils.isEmpty(nextList) ? 0 : nextList.size());
								bpmActModelUserTaskVo.setNextList(nextList);
							} // end of if (StringUtils.isNotBlank(targetRef))
						} // end fo if (sequenceFlowOpt.isPresent())
					} // end of for (String userTaskOut : outgoing)
				} // end of if (CollectionUtils.isNotEmpty(outgoing))
				else {
					bpmActModelUserTaskVo.setNextListSize(0);
				}

				result.add(bpmActModelUserTaskVo);

			} // end of for (BpmnUserTaskVo userTask : userTaskList) 循环任务节点

			// 按分支拆分任务链条
			List<List<BpmActModelUserTaskVo>> splitList = BpmActModelUtils.splitUserTasks(fileName, result);

			System.out.println("拆分后:" + JSON.toJSONString(splitList));

			System.out.println("------ Success ------.总耗时:" + (System.currentTimeMillis() - startTime) + " 毫秒");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 查找判断节点指向的用户任务
	 *
	 * @date 2024-10-16
	 * @param activityId           判断节点id
	 * @param userTaskList         用户任务节点
	 * @param sequenceFlowList     用户任务连接线条节点
	 * @param exclusiveGatewayList 判断条件节点
	 * @return BpmActModelUserTaskVo
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private void findNextUserTaskByGateway(String activityId, List<BpmnUserTaskVo> userTaskList,
			List<BpmnSequenceFlowVo> sequenceFlowList, List<BpmnExclusiveGatewayVo> exclusiveGatewayList,
			List<BpmActModelUserTaskVo> resultList) {

		if (StringUtils.isBlank(activityId)) {
			return;
		}
		Optional<BpmnExclusiveGatewayVo> gatewayOpt = exclusiveGatewayList.stream()
				.filter(g -> g.getId().equalsIgnoreCase(activityId)).findFirst();

		if (gatewayOpt.isPresent()) {
			BpmnExclusiveGatewayVo gateway = gatewayOpt.get();
			// 判断节点的下一个节点
			List<String> gateWayOutgoing = gateway.getOutgoing();

			if (CollectionUtils.isNotEmpty(gateWayOutgoing)) {
				// List<BpmActModelUserTaskVo> resultList = new ArrayList<>();
				BpmActModelUserTaskVo resultVo = null;

				for (String outgoing : gateWayOutgoing) {
					/* 判断节点的下一个节点是线条（线条有可能有多条） */
					Optional<BpmnSequenceFlowVo> sequenceFlowOpt = sequenceFlowList.stream()
							.filter(f -> f.getId().equalsIgnoreCase(outgoing)).findFirst();

					if (sequenceFlowOpt.isPresent()) {
						// 线条
						BpmnSequenceFlowVo sequenceFlow = sequenceFlowOpt.get();
						// 判断条件表达式
						BpmnConditionExpressionVo conditionExpression = sequenceFlow.getConditionExpression();
						// 取 通过 的
						if (conditionExpression == null || sequenceFlow.getName().contains("通过")
								|| (StringUtils.isNotBlank(conditionExpression.getText())
										&& conditionExpression.getText().contains("isPass==1"))) {
							// 线条的下一个节点
							String targetRef = sequenceFlow.getTargetRef();

							if (StringUtils.isNotBlank(targetRef)) {
								if (targetRef.toUpperCase().contains("GATEWAY")) {
									// 线条的下一个节点是判断节点
									findNextUserTaskByGateway(targetRef, userTaskList, sequenceFlowList,
											exclusiveGatewayList, resultList);
								} else if (targetRef.toUpperCase().contains("ACTIVITY")) {
									// 线条的下一个节点是用户任务节点
									String activityName = this.getUserTaskName(targetRef, userTaskList);

									if (!activityName.contains("驳回")) {
										resultVo = new BpmActModelUserTaskVo();
										resultVo.setActivityId(targetRef);
										resultVo.setActivityName(activityName);

										resultList.add(resultVo);
									}
								}
							}
						}
					} // end of if (sequenceFlowOpt.isPresent())
				} // end of for (String outgoing : gateWayOutgoing)
				// return resultList;
			} // end of if (CollectionUtils.isNotEmpty(gateWayOutgoing))
		} // end of if (gatewayOpt.isPresent())
		// return null;
	}

	/**
	 * 获取用户任务名称
	 *
	 * @date 2024-10-16
	 * @param activityId   用户任务id
	 * @param serviceTaskList 服务任务节点
	 * @return String
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private String getUserTaskName(String activityId, List<BpmnUserTaskVo> userTaskList) {
		if (StringUtils.isBlank(activityId) || CollectionUtils.isEmpty(userTaskList)) {
			return "";
		}
		Optional<BpmnUserTaskVo> opt = userTaskList.stream().filter(u -> u.getId().equalsIgnoreCase(activityId))
				.findFirst();

		BpmnUserTaskVo userTask = opt.orElse(null);

		return userTask == null || userTask.getName() == null ? "" : userTask.getName();
	}

	/**
	 * 合并用户任务和服务任务
	 *
	 * @date 2024-10-17
	 * @param userTaskList    用户任务
	 * @param serviceTaskList 服务任务
	 * @return List
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<BpmnUserTaskVo> mergeUserAndServiceTask(List<BpmnUserTaskVo> userTaskList,
			List<BpmServiceTaskVo> serviceTaskList) {
		if (CollectionUtils.isEmpty(userTaskList) && CollectionUtils.isEmpty(serviceTaskList)) {
			return new ArrayList<>();
		}
		if (CollectionUtils.isNotEmpty(userTaskList) && CollectionUtils.isEmpty(serviceTaskList)) {
			return userTaskList;
		}
		if (CollectionUtils.isEmpty(userTaskList) && CollectionUtils.isNotEmpty(serviceTaskList)) {
			return serviceTaskList.stream().map(o -> {
				BpmnUserTaskVo vo = new BpmnUserTaskVo();
				vo.setId(o.getId());
				vo.setName(o.getName());
				vo.setIncoming(new ArrayList<>(Arrays.asList(o.getIncoming())));

				return vo;
			}).collect(Collectors.toList());
		}
		// System.out.println("取并集-开始。userTaskList:\r\n" +
		// JSON.toJSONString(userTaskList));
		// System.out.println("取并集-开始。serviceTaskList:\r\n" +
		// JSON.toJSONString(serviceTaskList));

		// 服务任务 转 用户任务
		List<BpmnUserTaskVo> newUserTaskList = serviceTaskList.stream().map(o -> {
			BpmnUserTaskVo vo = new BpmnUserTaskVo();
			vo.setId(o.getId());
			vo.setName(o.getName());
			vo.setIncoming(new ArrayList<>(Arrays.asList(o.getIncoming())));

			return vo;
		}).collect(Collectors.toList());

		// 取并集 userTaskList + serviceTaskList
		List<BpmnUserTaskVo> result = Stream.concat(userTaskList.stream(), newUserTaskList.stream()).distinct()
				.collect(Collectors.toList());

		return result;
	}

	/**
	 * 合并用户任务和普通任务
	 *
	 * @date 2024-10-18
	 * @param userTaskList   用户任务
	 * @param normalTaskList 普通任务
	 * @return List
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<BpmnUserTaskVo> mergeUserAndNormalTask(List<BpmnUserTaskVo> userTaskList,
			List<BpmnNormalTaskVo> normalTaskList) {
		if (CollectionUtils.isEmpty(userTaskList) && CollectionUtils.isEmpty(normalTaskList)) {
			return new ArrayList<>();
		}
		if (CollectionUtils.isNotEmpty(userTaskList) && CollectionUtils.isEmpty(normalTaskList)) {
			return userTaskList;
		}
		if (CollectionUtils.isEmpty(userTaskList) && CollectionUtils.isNotEmpty(normalTaskList)) {
			return normalTaskList.stream().map(o -> {
				BpmnUserTaskVo vo = new BpmnUserTaskVo();
				vo.setId(o.getId());
				vo.setName(o.getName());
				vo.setIncoming(o.getIncoming());
				vo.setOutgoing(o.getOutgoing());

				return vo;
			}).collect(Collectors.toList());
		}
		// 服务任务 转 用户任务
		List<BpmnUserTaskVo> newUserTaskList = normalTaskList.stream().map(o -> {
			BpmnUserTaskVo vo = new BpmnUserTaskVo();
			vo.setId(o.getId());
			vo.setName(o.getName());
			vo.setIncoming(o.getIncoming());
			vo.setOutgoing(o.getOutgoing());

			return vo;
		}).collect(Collectors.toList());

		// 取并集 userTaskList + normalTaskList
		List<BpmnUserTaskVo> result = Stream.concat(userTaskList.stream(), newUserTaskList.stream()).distinct()
				.collect(Collectors.toList());

		return result;
	}

	/**
	 * 合并判断条件、并行判断条件
	 *
	 * @date 2024-10-23
	 * @param exclusiveGatewayList 判断条件
	 * @param parallelGatewayList  并行判断条件
	 * @return List
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<BpmnExclusiveGatewayVo> mergeGateway(List<BpmnExclusiveGatewayVo> exclusiveGatewayList,
			List<BpmnParallelGatewayVo> parallelGatewayList) {
		if (CollectionUtils.isEmpty(exclusiveGatewayList) && CollectionUtils.isEmpty(parallelGatewayList)) {
			return new ArrayList<>();
		}
		if (CollectionUtils.isNotEmpty(exclusiveGatewayList) && CollectionUtils.isEmpty(parallelGatewayList)) {
			return exclusiveGatewayList;
		}
		if (CollectionUtils.isEmpty(exclusiveGatewayList) && CollectionUtils.isNotEmpty(parallelGatewayList)) {
			return parallelGatewayList.stream().map(o -> {
				BpmnExclusiveGatewayVo vo = new BpmnExclusiveGatewayVo();
				vo.setId(o.getId());
				vo.setName(o.getName());
				vo.setIncoming(o.getIncoming());
				vo.setOutgoing(o.getOutgoing());

				return vo;
			}).collect(Collectors.toList());
		}
		// 并行判断条件 转 判断条件
		List<BpmnExclusiveGatewayVo> newUserTaskList = parallelGatewayList.stream().map(o -> {
			BpmnExclusiveGatewayVo vo = new BpmnExclusiveGatewayVo();
			vo.setId(o.getId());
			vo.setName(o.getName());
			vo.setIncoming(o.getIncoming());
			vo.setOutgoing(o.getOutgoing());

			return vo;
		}).collect(Collectors.toList());

		// 取并集 userTaskList + serviceTaskList
		List<BpmnExclusiveGatewayVo> result = Stream.concat(exclusiveGatewayList.stream(), newUserTaskList.stream())
				.distinct().collect(Collectors.toList());

		return result;
	}

	/**
	 * 将任务节点进行排序（按流程图设计的节点排序）
	 *
	 * @date 2024-10-22
	 * @param bpmnName 流程名称
	 * @param list     任务节点
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<BpmnUserTaskVo> orderUserTasks(String bpmnName, List<BpmActModelUserTaskVo> list) {
		if (CollectionUtils.isEmpty(list)) {
			return null;
		}
		// 按 activityId 分组
		Map<String, List<BpmActModelUserTaskVo>> map = list.stream().collect(
				Collectors.groupingBy(BpmActModelUserTaskVo::getActivityId, LinkedHashMap::new, Collectors.toList()));

		// 取第一个任务节点
		List<BpmActModelUserTaskVo> firstTaskList = list.stream().filter(o -> o.getSort() != null && o.getSort() == 1)
				.collect(Collectors.toList());

		List<BpmnUserTaskVo> userTaskList = new ArrayList<>();
		BpmnUserTaskVo userTask = null;

		for (BpmActModelUserTaskVo firstTask : firstTaskList) {
			/* 从第一个任务节点开始，第二个任务节点是第一个的子节点，第三个任务节点是第二个的子节点，... 依此类推 */
			userTask = new BpmnUserTaskVo();
			userTask.setId(firstTask.getActivityId());
			userTask.setName(firstTask.getActivityName());

			userTaskList.add(userTask);

			// 第二个任务节点（是第一个的子节点）
			List<BpmActModelUserTaskVo> secondList = firstTask.getNextList();

			if (CollectionUtils.isNotEmpty(secondList)) {
				/* 第二个任务节点是第一个的子节点，第三个任务节点是第二个的子节点，... 依此类推 */
				List<BpmnUserTaskVo> childList = this.loopNextList(bpmnName, map, secondList);

				if (CollectionUtils.isNotEmpty(childList)) {
					userTaskList.addAll(childList);
				}
			}
		}
		return userTaskList;
	}

	/**
	 * 循环处理第2、3、4...任务节点
	 *
	 * @date 2024-10-23
	 * @param bpmnName 流程名称
	 * @param map      所有任务节点
	 * @param nextList 第2、3、4...任务节点
	 * @return List
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<BpmnUserTaskVo> loopNextList(String bpmnName, Map<String, List<BpmActModelUserTaskVo>> map,
			List<BpmActModelUserTaskVo> nextList) {

		if (CollectionUtils.isEmpty(nextList)) {
			return null;
		}
		List<BpmnUserTaskVo> userTaskList = new ArrayList<>();
		BpmnUserTaskVo userTask = null;

		for (BpmActModelUserTaskVo nextTask : nextList) {
			userTask = new BpmnUserTaskVo();
			userTask.setId(nextTask.getActivityId());
			userTask.setName(nextTask.getActivityName());

			userTaskList.add(userTask);

			// 查找nextTask的子节点
			List<BpmActModelUserTaskVo> childList = map.get(nextTask.getActivityId());

			if (CollectionUtils.isNotEmpty(childList)) {
				BpmActModelUserTaskVo child = childList.get(0);
				// 下一个节点的下一个节点
				List<BpmActModelUserTaskVo> nextChildList = child.getNextList();

				if (CollectionUtils.isNotEmpty(nextChildList)) {
					nextChildList = nextChildList.stream().filter(o -> !o.getActivityName().contains("驳回"))
							.collect(Collectors.toList());

					if (CollectionUtils.isNotEmpty(nextChildList)) {
						// 递归调用，处理下一个节点的下一个节点
						List<BpmnUserTaskVo> childExpList = this.loopNextList(bpmnName, map, nextChildList);

						if (CollectionUtils.isNotEmpty(childExpList)) {
							userTaskList.addAll(childExpList);
						}
					}
				}
			}
		}
		return userTaskList;
	}

	/**
	 * 按分支拆分任务链条
	 *
	 * @date 2024-10-24
	 * @param bpmnName 流程名称
	 * @param list     所有任务
	 * @return List
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private List<List<BpmActModelUserTaskVo>> splitUserTasks(String bpmnName, List<BpmActModelUserTaskVo> list) {
		if (CollectionUtils.isEmpty(list)) {
			log.info("按分支拆分任务链条,所有任务为空");
			return new ArrayList<>();
		}
		// 按 activityId 分组
		Map<String, List<BpmActModelUserTaskVo>> map = list.stream().collect(
				Collectors.groupingBy(BpmActModelUserTaskVo::getActivityId, LinkedHashMap::new, Collectors.toList()));
		// 第一个任务节点
		Optional<BpmActModelUserTaskVo> firstOpt = list.stream().filter(o -> o.getSort() != null && o.getSort() == 1)
				.findFirst();

		BpmActModelUserTaskVo firstTask = firstOpt.orElse(null);

		if (firstTask == null) {
			log.info("按分支拆分任务链条,第一个任务节点不存在.所有任务:{}", JSON.toJSONString(list));
			return new ArrayList<>();
		}
		// 最终拆分结果
		List<List<BpmActModelUserTaskVo>> resultList = new ArrayList<>();
		// 用于保存当前任务节点及其之前的任务节点
		List<BpmActModelUserTaskVo> initItemList = new ArrayList<>();

		initItemList.add(firstTask);

		recursionNextTask(resultList, firstTask, initItemList, map);

		// log.info("allList:\r\n{}", JSON.toJSONString(resultList));

		return resultList;
	}

	/**
	 * 根据当前任务节点递归拆分
	 *
	 * @date 2024-10-25
	 *
	 * @param result       拆分最终结果
	 * @param node         当前任务节点
	 * @param initItemList 用于保存当前任务节点及其之前的任务节点
	 * @param map          所有任务节点
	 * @since JDK 11
	 * @author wenjianhai
	 */
	private void recursionNextTask(List<List<BpmActModelUserTaskVo>> result, BpmActModelUserTaskVo node,
			List<BpmActModelUserTaskVo> initItemList, Map<String, List<BpmActModelUserTaskVo>> map) {

		if (node.getNextList() == null || node.getNextList().size() <= 0) {
			/* 最后一个任务节点 */
			result.add(initItemList);
			return;
		}
		// node的下一个节点
		List<BpmActModelUserTaskVo> nextList = node.getNextList();

		for (int i = 0; i < nextList.size(); i++) {
			BpmActModelUserTaskVo child = nextList.get(i);

			BpmActModelUserTaskVo taskVo = map.get(child.getActivityId()).get(0);

			child.setNextList(taskVo.getNextList());

			List<BpmActModelUserTaskVo> cPath = new ArrayList<>();
			cPath.addAll(initItemList);
			cPath.add(child);
			recursionNextTask(result, child, cPath, map);
		}
	}

	private BpmnUserTaskVo changeToBpmnUserTask(BpmActModelUserTaskVo vo) {
		if (vo == null) {
			return null;
		}
		BpmnUserTaskVo userTask = new BpmnUserTaskVo();
		userTask.setId(vo.getActivityId());
		userTask.setName(vo.getActivityName());

		return userTask;
	}
}

4. xml

<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" id="sample-diagram" targetNamespace="http://bpmn.io/schema/bpmn" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd">
  <bpmn2:process id="P1849399003950776320" name="党建管理--测试流程20241024" isExecutable="false">
    <bpmn2:startEvent id="Start" name="开始">
      <bpmn2:outgoing>Flow_1ne0svl</bpmn2:outgoing>
    </bpmn2:startEvent>
    <bpmn2:sequenceFlow id="Flow_1ne0svl" sourceRef="Start" targetRef="Activity_176lx3w" />
    <bpmn2:sequenceFlow id="Flow_1rcb5c9" sourceRef="Activity_0agsln1" targetRef="Activity_176lx3w" />
    <bpmn2:endEvent id="Event_0ww3zjl" name="结束">
      <bpmn2:incoming>Flow_1jlf6lk</bpmn2:incoming>
    </bpmn2:endEvent>
    <bpmn2:userTask id="Activity_176lx3w" name="施工单位审核" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:extensionElements>
        <camunda:taskListener class="com.pit.jxh.bpm.listener.TaskAssigneeByBidListener" event="create" node="0" className="根据标段与角色过滤处理人">
          <camunda:field name="taskListenerNodeAttr" stringValue="currentNodeListener" />
        </camunda:taskListener>
      </bpmn2:extensionElements>
      <bpmn2:incoming>Flow_1ne0svl</bpmn2:incoming>
      <bpmn2:incoming>Flow_1rcb5c9</bpmn2:incoming>
      <bpmn2:outgoing>Flow_1fmkw2h</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:userTask id="Activity_0agsln1" name="驳回发起人" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:outgoing>Flow_1rcb5c9</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:userTask id="Activity_16gr09p" name="监理单位标段负责人审核">
      <bpmn2:incoming>Flow_1fmkw2h</bpmn2:incoming>
      <bpmn2:outgoing>Flow_162x4uh</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_1fmkw2h" sourceRef="Activity_176lx3w" targetRef="Activity_16gr09p" />
    <bpmn2:exclusiveGateway id="Gateway_09feac3">
      <bpmn2:incoming>Flow_162x4uh</bpmn2:incoming>
      <bpmn2:outgoing>Flow_0pswyjf</bpmn2:outgoing>
      <bpmn2:outgoing>Flow_0ef39iv</bpmn2:outgoing>
    </bpmn2:exclusiveGateway>
    <bpmn2:sequenceFlow id="Flow_162x4uh" sourceRef="Activity_16gr09p" targetRef="Gateway_09feac3" />
    <bpmn2:userTask id="Activity_067ipaf" name="监理单位执行总监--审核" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_0pswyjf</bpmn2:incoming>
      <bpmn2:outgoing>Flow_1jdhsqm</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_0pswyjf" name="标段负责人-&#62;执行总监" sourceRef="Gateway_09feac3" targetRef="Activity_067ipaf">
      <bpmn2:conditionExpression xsi:type="bpmn2:tFormalExpression">${isPass==1 &amp;&amp; code=="branch1"}</bpmn2:conditionExpression>
    </bpmn2:sequenceFlow>
    <bpmn2:userTask id="Activity_0j79q2e" name="监理单位执行总监--审批" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_0ef39iv</bpmn2:incoming>
      <bpmn2:outgoing>Flow_1px82ag</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_0ef39iv" name="执行总监-&#62;总监" sourceRef="Gateway_09feac3" targetRef="Activity_0j79q2e">
      <bpmn2:conditionExpression xsi:type="bpmn2:tFormalExpression">${isPass==1 &amp;&amp; code=="branch2"}</bpmn2:conditionExpression>
    </bpmn2:sequenceFlow>
    <bpmn2:sequenceFlow id="Flow_1jdhsqm" sourceRef="Activity_067ipaf" targetRef="Activity_1htfic1" />
    <bpmn2:userTask id="Activity_1htfic1" name="设计负责人转办" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_1jdhsqm</bpmn2:incoming>
      <bpmn2:outgoing>Flow_0pcvprx</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:exclusiveGateway id="Gateway_1b45d7q">
      <bpmn2:incoming>Flow_0pcvprx</bpmn2:incoming>
      <bpmn2:outgoing>Flow_0yx4y87</bpmn2:outgoing>
      <bpmn2:outgoing>Flow_08aqm45</bpmn2:outgoing>
    </bpmn2:exclusiveGateway>
    <bpmn2:sequenceFlow id="Flow_0pcvprx" sourceRef="Activity_1htfic1" targetRef="Gateway_1b45d7q" />
    <bpmn2:userTask id="Activity_1ryfinq" name="项目法人建设现场指挥部负责人审核" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_0yx4y87</bpmn2:incoming>
      <bpmn2:outgoing>Flow_1d6gvd8</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_0yx4y87" name="报指挥长" sourceRef="Gateway_1b45d7q" targetRef="Activity_1ryfinq">
      <bpmn2:conditionExpression xsi:type="bpmn2:tFormalExpression">${isPass==1  &amp;&amp; code=="branch2"}</bpmn2:conditionExpression>
    </bpmn2:sequenceFlow>
    <bpmn2:sequenceFlow id="Flow_08aqm45" name="不报指挥长" sourceRef="Gateway_1b45d7q" targetRef="Activity_1jt3q4j">
      <bpmn2:conditionExpression xsi:type="bpmn2:tFormalExpression">${isPass==1  &amp;&amp; code=="branch1"}</bpmn2:conditionExpression>
    </bpmn2:sequenceFlow>
    <bpmn2:userTask id="Activity_1jt3q4j" name="施工单位签字盖章" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_08aqm45</bpmn2:incoming>
      <bpmn2:incoming>Flow_1d6gvd8</bpmn2:incoming>
      <bpmn2:outgoing>Flow_0boxtgp</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_1d6gvd8" sourceRef="Activity_1ryfinq" targetRef="Activity_1jt3q4j" />
    <bpmn2:userTask id="Activity_1kutkrk" name="监理单位标段负责人签字" camunda:formKey="" camunda:assignee="" camunda:flowFormId="" camunda:formType="0">
      <bpmn2:incoming>Flow_0boxtgp</bpmn2:incoming>
      <bpmn2:incoming>Flow_0ir3eu3</bpmn2:incoming>
      <bpmn2:outgoing>Flow_1jlf6lk</bpmn2:outgoing>
    </bpmn2:userTask>
    <bpmn2:sequenceFlow id="Flow_0boxtgp" sourceRef="Activity_1jt3q4j" targetRef="Activity_1kutkrk" />
    <bpmn2:task id="Activity_1re6s41" name="监理单位总监审核" camunda:flowFormId="" camunda:formKey="" camunda:formType="0" camunda:assignee="">
      <bpmn2:incoming>Flow_1px82ag</bpmn2:incoming>
      <bpmn2:outgoing>Flow_0ir3eu3</bpmn2:outgoing>
    </bpmn2:task>
    <bpmn2:sequenceFlow id="Flow_1px82ag" sourceRef="Activity_0j79q2e" targetRef="Activity_1re6s41" />
    <bpmn2:sequenceFlow id="Flow_1jlf6lk" sourceRef="Activity_1kutkrk" targetRef="Event_0ww3zjl" />
    <bpmn2:sequenceFlow id="Flow_0ir3eu3" sourceRef="Activity_1re6s41" targetRef="Activity_1kutkrk" />
  </bpmn2:process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="P1849399003950776320">
      <bpmndi:BPMNEdge id="Flow_0ir3eu3_di" bpmnElement="Flow_0ir3eu3">
        <di:waypoint x="1220" y="390" />
        <di:waypoint x="1620" y="390" />
        <di:waypoint x="1620" y="298" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1jlf6lk_di" bpmnElement="Flow_1jlf6lk">
        <di:waypoint x="1670" y="258" />
        <di:waypoint x="1732" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1px82ag_di" bpmnElement="Flow_1px82ag">
        <di:waypoint x="1040" y="390" />
        <di:waypoint x="1120" y="390" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0boxtgp_di" bpmnElement="Flow_0boxtgp">
        <di:waypoint x="1510" y="258" />
        <di:waypoint x="1570" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1d6gvd8_di" bpmnElement="Flow_1d6gvd8">
        <di:waypoint x="1350" y="140" />
        <di:waypoint x="1460" y="140" />
        <di:waypoint x="1460" y="218" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_08aqm45_di" bpmnElement="Flow_08aqm45">
        <di:waypoint x="1325" y="258" />
        <di:waypoint x="1410" y="258" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="1341" y="240" width="54" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0yx4y87_di" bpmnElement="Flow_0yx4y87">
        <di:waypoint x="1300" y="233" />
        <di:waypoint x="1300" y="180" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="1294" y="204" width="43" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0pcvprx_di" bpmnElement="Flow_0pcvprx">
        <di:waypoint x="1220" y="258" />
        <di:waypoint x="1275" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1jdhsqm_di" bpmnElement="Flow_1jdhsqm">
        <di:waypoint x="1040" y="258" />
        <di:waypoint x="1120" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0ef39iv_di" bpmnElement="Flow_0ef39iv">
        <di:waypoint x="850" y="283" />
        <di:waypoint x="850" y="390" />
        <di:waypoint x="940" y="390" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="827" y="334" width="77" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0pswyjf_di" bpmnElement="Flow_0pswyjf">
        <di:waypoint x="875" y="258" />
        <di:waypoint x="940" y="258" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="879" y="240" width="58" height="27" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_162x4uh_di" bpmnElement="Flow_162x4uh">
        <di:waypoint x="770" y="258" />
        <di:waypoint x="825" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1fmkw2h_di" bpmnElement="Flow_1fmkw2h">
        <di:waypoint x="620" y="258" />
        <di:waypoint x="670" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1rcb5c9_di" bpmnElement="Flow_1rcb5c9">
        <di:waypoint x="570" y="180" />
        <di:waypoint x="570" y="218" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1ne0svl_di" bpmnElement="Flow_1ne0svl">
        <di:waypoint x="448" y="258" />
        <di:waypoint x="520" y="258" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="Start">
        <dc:Bounds x="412" y="240" width="36" height="36" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="419" y="283" width="22" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Event_0ww3zjl_di" bpmnElement="Event_0ww3zjl">
        <dc:Bounds x="1732" y="240" width="36" height="36" />
        <bpmndi:BPMNLabel>
          <dc:Bounds x="1739" y="283" width="22" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0xgybj1_di" bpmnElement="Activity_176lx3w">
        <dc:Bounds x="520" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0wf257m_di" bpmnElement="Activity_0agsln1">
        <dc:Bounds x="520" y="100" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0wqior5_di" bpmnElement="Activity_16gr09p">
        <dc:Bounds x="670" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_09feac3_di" bpmnElement="Gateway_09feac3" isMarkerVisible="true">
        <dc:Bounds x="825" y="233" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_14xkqqt_di" bpmnElement="Activity_067ipaf">
        <dc:Bounds x="940" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1tqjipe_di" bpmnElement="Activity_0j79q2e">
        <dc:Bounds x="940" y="350" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_18aa89r_di" bpmnElement="Activity_1htfic1">
        <dc:Bounds x="1120" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_1b45d7q_di" bpmnElement="Gateway_1b45d7q" isMarkerVisible="true">
        <dc:Bounds x="1275" y="233" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1kf6ios_di" bpmnElement="Activity_1ryfinq">
        <dc:Bounds x="1250" y="100" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1lc44vr_di" bpmnElement="Activity_1jt3q4j">
        <dc:Bounds x="1410" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1xogvs5_di" bpmnElement="Activity_1kutkrk">
        <dc:Bounds x="1570" y="218" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1re6s41_di" bpmnElement="Activity_1re6s41">
        <dc:Bounds x="1120" y="350" width="100" height="80" />
      </bpmndi:BPMNShape>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</bpmn2:definitions>

5. 开始节点  BpmnStartEventVo

import java.io.Serializable;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】开始节点
 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:startEvent </p>
 * @author 
 * @date 2024/10/22 星期二
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnStartEventVo implements Serializable {

	private static final long serialVersionUID = 3888622178629765729L;

	/** 节点id（bpmn2:startEvent 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 节点名称（bpmn2:startEvent 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 下一个节点id（bpmn2:startEvent 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 3)
	private String outgoing;
}

6. 普通任务  BpmnNormalTaskVo

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】普通任务
 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:task </p>
 * @author 
 * @date 2024/10/18 星期五
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnNormalTaskVo implements Serializable {

	private static final long serialVersionUID = 592582132356281705L;

	/** 当前节点id（bpmn2:task 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 用户任务名称（bpmn2:task 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:task 下的 bpmn2:incoming） */
	@JSONField(ordinal = 3)
	private List<String> incoming;

	/** 下一个节点id（bpmn2:task 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 4)
	private List<String> outgoing;
}

7. 用户任务   

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】用户任务
 * <p> 表bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:userTask </p>
 * @author 
 * @date 2024/10/14 星期一
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnUserTaskVo implements Serializable {

	private static final long serialVersionUID = -3841909171453342855L;

	/** 当前节点id（bpmn2:userTask 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 用户任务名称（bpmn2:userTask 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:userTask 下的 bpmn2:incoming） */
	@JSONField(ordinal = 3)
	private List<String> incoming;

	/** 下一个节点id（bpmn2:userTask 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 4)
	private List<String> outgoing;
}

8. 服务任务  BpmServiceTaskVo

import java.io.Serializable;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】服务任务
 *  <p> 表bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:serviceTask </p>
 * @author 
 * @date 2024/10/16 星期三
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmServiceTaskVo implements Serializable {

	private static final long serialVersionUID = -799632822699624427L;

	/** 当前节点id（bpmn2:serviceTask 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 当前节点名称（bpmn2:serviceTask 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:serviceTask 下的 bpmn2:incoming） */
	@JSONField(ordinal = 3)
	private String incoming;
}

9. 连接线条  BpmnSequenceFlowVo

import com.alibaba.fastjson.annotation.JSONField;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

import java.io.Serializable;

/**
 * 【流程图设计-节点】连接线条
 * <p> 表bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:sequenceFlow </p>
 * @author 
 * @date 2024/10/14 星期一
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnSequenceFlowVo implements Serializable {

    private static final long serialVersionUID = 4634614840831021276L;

    /** 线条id（bpmn2:sequenceFlow 下的 id） */
    @JSONField(ordinal = 1)
    private String id;

    /** 线条名称（bpmn2:sequenceFlow 下的 name） */
    @JSONField(ordinal = 2)
    private String name;

    /** 上一个节点id（bpmn2:sequenceFlow 下的 sourceRef） */
    @JSONField(ordinal = 3)
    private String sourceRef;

    /** 下一个节点id（bpmn2:sequenceFlow 下的 targetRef） */
    @JSONField(ordinal = 4)
    private String targetRef;

    /** 判断条件表达式 */
    @JSONField(ordinal = 5)
    private BpmnConditionExpressionVo conditionExpression;
}

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

import java.io.Serializable;

/**
 * 【流程图设计-节点】连接线条--判断条件表达式
 * @author 
 * @date 2024/10/14 星期一
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnConditionExpressionVo implements Serializable {

    private static final long serialVersionUID = -2436384159645412119L;

    /** 判断条件表达式 */
    private String text;

    private String type;

    private String xsi;
}

10. 判断条件   BpmnExclusiveGatewayVo

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】判断条件
 * <p> 表bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:exclusiveGateway </p>
 * @author 
 * @date 2024/10/14 星期一
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnExclusiveGatewayVo implements Serializable {

	private static final long serialVersionUID = 1129041486109521972L;

	/** 判断节点id（bpmn2:exclusiveGateway 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 判断节点名称（bpmn2:exclusiveGateway 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:exclusiveGateway 下的 bpmn2:incoming） */
	@JSONField(ordinal = 3)
	private List<String> incoming;

	/** 下一个节点id（bpmn2:exclusiveGateway 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 4)
	private List<String> outgoing;
}

11. 并行判断条件   BpmnParallelGatewayVo

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】并行判断条件
 * <p> 表bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:parallelGateway </p>
 * @author 
 * @date 2024/10/23 星期三
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnParallelGatewayVo implements Serializable {
	/* 设计计量支付-环水保 中存在 bpmn2:parallelGateway */

	private static final long serialVersionUID = 7687664845656893652L;

	/** 判断节点id（bpmn2:parallelGateway 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 判断节点名称（bpmn2:parallelGateway 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:parallelGateway 下的 bpmn2:incoming） */
	@JSONField(ordinal = 3)
	private List<String> incoming;

	/** 下一个节点id（bpmn2:parallelGateway 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 4)
	private List<String> outgoing;
}

12. 结束节点   BpmnEndEventVo

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;

import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 【流程图设计-节点】结束节点
 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:endEvent </p>
 * @author 
 * @date 2024/10/22 星期二
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmnEndEventVo implements Serializable {

	private static final long serialVersionUID = 301741732562467606L;

	/** 节点id（bpmn2:startEvent 下的 id） */
	@JSONField(ordinal = 1)
	private String id;

	/** 节点名称（bpmn2:startEvent 下的 name） */
	@JSONField(ordinal = 2)
	private String name;

	/** 上一个节点id（bpmn2:startEvent 下的 bpmn2:outgoing） */
	@JSONField(ordinal = 3)
	private List<String> incoming;
}

13. 任务节点及之间的关系  bpmActModelUserTaskVo

import java.io.Serializable;
import java.util.List;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;

/**
 * 流程图设计用户任务节点信息
 * <p> 表 bpm_act_model_info 的字段 bpmn_xml 中的 bpmn2:userTask </p>
 * @author 
 * @date 2024/10/16 星期三
 * @since JDK 11
 */
@Data
@EqualsAndHashCode(callSuper = false)
@ToString(callSuper = true)
public class BpmActModelUserTaskVo implements Serializable {

	private static final long serialVersionUID = 1320297636620632310L;

	/** 当前用户任务节点id */
	@JSONField(ordinal = 1)
	private String activityId;

	/** 当前用户任务节点名称 */
	@JSONField(ordinal = 2)
	private String activityName;

	/** 排序 */
	@JSONField(ordinal = 3)
	private Integer sort;

	/** 子节点长度（即 nextList.size()） */
	@JSONField(ordinal = 4)
	private Integer nextListSize;

	/** 下一个用户任务节点 */
	@JSONField(ordinal = 5)
	private List<BpmActModelUserTaskVo> nextList;
}

14. 解析xml后的节点前后关系

[
    {
        "activityId": "Activity_176lx3w",
        "activityName": "施工单位审核",
        "sort": 1,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_16gr09p",
                "activityName": "监理单位标段负责人审核",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_0agsln1",
        "activityName": "驳回发起人",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_176lx3w",
                "activityName": "施工单位审核",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_16gr09p",
        "activityName": "监理单位标段负责人审核",
        "sort": null,
        "nextListSize": 2,
        "nextList": [
            {
                "activityId": "Activity_067ipaf",
                "activityName": "监理单位执行总监--审核",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            },
            {
                "activityId": "Activity_0j79q2e",
                "activityName": "监理单位执行总监--审批",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_067ipaf",
        "activityName": "监理单位执行总监--审核",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_1htfic1",
                "activityName": "设计负责人转办",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_0j79q2e",
        "activityName": "监理单位执行总监--审批",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_1re6s41",
                "activityName": "监理单位总监审核",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_1htfic1",
        "activityName": "设计负责人转办",
        "sort": null,
        "nextListSize": 2,
        "nextList": [
            {
                "activityId": "Activity_1ryfinq",
                "activityName": "项目法人建设现场指挥部负责人审核",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            },
            {
                "activityId": "Activity_1jt3q4j",
                "activityName": "施工单位签字盖章",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_1ryfinq",
        "activityName": "项目法人建设现场指挥部负责人审核",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_1jt3q4j",
                "activityName": "施工单位签字盖章",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_1jt3q4j",
        "activityName": "施工单位签字盖章",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_1kutkrk",
                "activityName": "监理单位标段负责人签字",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    },
    {
        "activityId": "Activity_1kutkrk",
        "activityName": "监理单位标段负责人签字",
        "sort": null,
        "nextListSize": 0,
        "nextList": []
    },
    {
        "activityId": "Activity_1re6s41",
        "activityName": "监理单位总监审核",
        "sort": null,
        "nextListSize": 1,
        "nextList": [
            {
                "activityId": "Activity_1kutkrk",
                "activityName": "监理单位标段负责人签字",
                "sort": null,
                "nextListSize": null,
                "nextList": []
            }
        ]
    }
]

15. 拆分后的流程任务链路

[
    [
        {
            "activityId": "Activity_176lx3w",
            "activityName": "施工单位审核",
            "sort": 1,
            "nextListSize": 1,
            "nextList": [
                {
                    "activityId": "Activity_16gr09p",
                    "activityName": "监理单位标段负责人审核",
                    "sort": null,
                    "nextListSize": null,
                    "nextList": [
                        {
                            "activityId": "Activity_067ipaf",
                            "activityName": "监理单位执行总监--审核",
                            "sort": null,
                            "nextListSize": null,
                            "nextList": [
                                {
                                    "activityId": "Activity_1htfic1",
                                    "activityName": "设计负责人转办",
                                    "sort": null,
                                    "nextListSize": null,
                                    "nextList": [
                                        {
                                            "activityId": "Activity_1ryfinq",
                                            "activityName": "项目法人建设现场指挥部负责人审核",
                                            "sort": null,
                                            "nextListSize": null,
                                            "nextList": [
                                                {
                                                    "activityId": "Activity_1jt3q4j",
                                                    "activityName": "施工单位签字盖章",
                                                    "sort": null,
                                                    "nextListSize": null,
                                                    "nextList": [
                                                        {
                                                            "activityId": "Activity_1kutkrk",
                                                            "activityName": "监理单位标段负责人签字",
                                                            "sort": null,
                                                            "nextListSize": null,
                                                            "nextList": []
                                                        }
                                                    ]
                                                }
                                            ]
                                        },
                                        {
                                            "activityId": "Activity_1jt3q4j",
                                            "activityName": "施工单位签字盖章",
                                            "sort": null,
                                            "nextListSize": null,
                                            "nextList": [
                                                {
                                                    "activityId": "Activity_1kutkrk",
                                                    "activityName": "监理单位标段负责人签字",
                                                    "sort": null,
                                                    "nextListSize": null,
                                                    "nextList": []
                                                }
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "activityId": "Activity_0j79q2e",
                            "activityName": "监理单位执行总监--审批",
                            "sort": null,
                            "nextListSize": null,
                            "nextList": [
                                {
                                    "activityId": "Activity_1re6s41",
                                    "activityName": "监理单位总监审核",
                                    "sort": null,
                                    "nextListSize": null,
                                    "nextList": [
                                        {
                                            "activityId": "Activity_1kutkrk",
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