遍历流程文件的元素

gistfile1.java

// 从classpath中获取
InputStream inputStream = getClass().getClassLoader().getResourceAsStream("chapter6/dynamic-form/leave.bpmn");

// 创建转换对象
BpmnXMLConverter converter = new BpmnXMLConverter();

// 创建XMLStreamReader读取XML资源
XMLInputFactory factory = XMLInputFactory.newInstance();
XMLStreamReader reader = factory.createXMLStreamReader(inputStream);

// 把XML转换成BpmnModel对象
BpmnModel bpmnModel = converter.convertToBpmnModel(reader);

// 验证BpmnModel对象不为空
assertNotNull(bpmnModel);
Process process = bpmnModel.getMainProcess();
Collection<FlowElement> flowElements = process.getFlowElements();
for (FlowElement flowElement : flowElements) {
    System.out.println(flowElement);
}

// 查询流程定义对象
ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().processDefinitionKey("leave").singleResult();

// 获取BpmnModel对象
BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinition.getId());

// 创建转换对象
BpmnXMLConverter converter = new BpmnXMLConverter();

// 验证BpmnModel对象不为空
Process process = bpmnModel.getMainProcess();
Collection<FlowElement> flowElements = process.getFlowElements();
for (FlowElement flowElement : flowElements) {
    System.out.println(flowElement);
}