基于若依的ruoyi-nbcio流程管理系统仿钉钉流程json转bpmn的flowable的xml格式（排它条件网关）

本文主要是介绍基于若依的ruoyi-nbcio流程管理系统仿钉钉流程json转bpmn的flowable的xml格式（排它条件网关），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

更多ruoyi-nbcio功能请看演示系统

gitee源代码地址

前后端代码： https://gitee.com/nbacheng/ruoyi-nbcio

演示地址：RuoYi-Nbcio后台管理系统

这个章节来完成并行网关与排它条件网关的功能

1、前端

目前就修改了排它条件网关的前端条件部分，简化条件公式，考虑与原有流程设计器兼容。

主要是以下部分修改

 <!-- 条件  --><section class="condition-pane" v-if="value && isConditionNode()"><!-- 字符串条件 --><el-input placeholder="请输入条件表达式" v-model="pconditions"><template slot="prepend">条件表达式:</template></el-input></section>/*** 条件节点确认保存得回调*/conditionNodeComfirm() {this.properties.conditions = this.pconditions// 发起人虽然是条件 但是这里把发起人放到外部单独判断this.properties.initiator = this.initiator['dep&user']//this.initiator['dep&user'] && (nodeContent = `[发起人: ${this.getOrgSelectLabel('condition')}]` + '\n' + nodeContent)this.$emit("confirm", this.properties, this.pconditions || '请设置条件表达式');this.visible = false;},/*** 初始化条件节点数据*/initConditionNodeData(){this.pconditions = this.value.content},

2、排它条件网关后端修改

String createExclusiveGatewayBuilder(String formId, JSONObject flowNode) throws InvocationTargetException, IllegalAccessException {//String name = flowNode.getString("nodeName");String exclusiveGatewayId = id("exclusiveGateway");ExclusiveGateway exclusiveGateway = new ExclusiveGateway();exclusiveGateway.setId(exclusiveGatewayId);exclusiveGateway.setName("排它条件网关");ddProcess.addFlowElement(exclusiveGateway);ddProcess.addFlowElement(connect(formId, exclusiveGatewayId));if (Objects.isNull(flowNode.getJSONArray("conditionNodes")) && Objects.isNull(flowNode.getJSONObject("childNode"))) {return exclusiveGatewayId;}List<JSONObject> flowNodes = Optional.ofNullable(flowNode.getJSONArray("conditionNodes")).map(e -> e.toJavaList(JSONObject.class)).orElse(Collections.emptyList());List<String> incoming = Lists.newArrayListWithCapacity(flowNodes.size());List<JSONObject> conditions = Lists.newCopyOnWriteArrayList();for (JSONObject element : flowNodes) {JSONObject childNode = element.getJSONObject("childNode");JSONObject properties = element.getJSONObject("properties");String nodeName = properties.getString("title");String expression = properties.getString("conditions");if (Objects.isNull(childNode)) {incoming.add(exclusiveGatewayId);JSONObject condition = new JSONObject();condition.fluentPut("nodeName", nodeName).fluentPut("expression", expression);conditions.add(condition);continue;}// 只生成一个任务，同时设置当前任务的条件childNode.put("incoming", Collections.singletonList(exclusiveGatewayId));String identifier = create(exclusiveGatewayId, childNode);List<SequenceFlow> flows = ddSequenceFlows.stream().filter(flow -> StringUtils.equals(exclusiveGatewayId, flow.getSourceRef())).collect(Collectors.toList());flows.stream().forEach(e -> {if (StringUtils.isBlank(e.getName()) && StringUtils.isNotBlank(nodeName)) {e.setName(nodeName);}// 设置条件表达式if (Objects.isNull(e.getConditionExpression()) && StringUtils.isNotBlank(expression)) {e.setConditionExpression(expression);}});if (Objects.nonNull(identifier)) {incoming.add(identifier);}}JSONObject childNode = flowNode.getJSONObject("childNode");if (Objects.nonNull(childNode)) {if (incoming == null || incoming.isEmpty()) {return create(exclusiveGatewayId, childNode);} else {// 所有 service task 连接 end exclusive gatewaychildNode.put("incoming", incoming);FlowElement flowElement = ddBpmnModel.getFlowElement(incoming.get(0));// 1.0 先进行边连接, 暂存 nextNodeJSONObject nextNode = childNode.getJSONObject("childNode");childNode.put("childNode", null);String identifier = create(flowElement.getId(), childNode);for (int i = 1; i < incoming.size(); i++) {ddProcess.addFlowElement(connect(incoming.get(i), identifier));}//  针对 gateway 空任务分支 添加条件表达式if (!conditions.isEmpty()) {FlowElement flowElement1 = ddBpmnModel.getFlowElement(identifier);// 获取从 gateway 到目标节点 未设置条件表达式的节点List<SequenceFlow> flows = ddSequenceFlows.stream().filter(flow -> StringUtils.equals(flowElement1.getId(), flow.getTargetRef())).filter(flow -> StringUtils.equals(flow.getSourceRef(), exclusiveGatewayId)).collect(Collectors.toList());flows.stream().forEach(sequenceFlow -> {if (!conditions.isEmpty()) {JSONObject condition = conditions.get(0);String nodeName = condition.getString("content");String expression = condition.getString("expression");if (StringUtils.isBlank(sequenceFlow.getName()) && StringUtils.isNotBlank(nodeName)) {sequenceFlow.setName(nodeName);}// 设置条件表达式if (Objects.isNull(sequenceFlow.getConditionExpression()) && StringUtils.isNotBlank(expression)) {sequenceFlow.setConditionExpression(expression);}conditions.remove(0);}});}// 1.1 边连接完成后，在进行 nextNode 创建if (Objects.nonNull(nextNode)) {return create(identifier, nextNode);} else {return identifier;}}}return exclusiveGatewayId;}

4、效果图如下：