activiti高亮当前节点

来源：互联网发布：温州管家婆软件编辑：程序博客网时间：2024/06/08 08:52

有时候为了方便申请人查看当前流程走到哪个节点，比较直观的办法就是高亮当前节点，当然activiti也提供了API供我们调用

生成图片示例代码：

public  byte[] generateImage(String processInstanceId){  //1.创建核心引擎流程对象processEngine        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();TaskService taskService = processEngine.getTaskService();Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();//流程定义BpmnModel bpmnModel = processEngine.getRepositoryService().getBpmnModel(task.getProcessDefinitionId()); //正在活动节点List<String> activeActivityIds = processEngine.getRuntimeService().getActiveActivityIds(task.getExecutionId());ProcessDiagramGenerator pdg = processEngine.getProcessEngineConfiguration().getProcessDiagramGenerator();//生成流图片        InputStream inputStream = pdg.generateDiagram(bpmnModel, "PNG", activeActivityIds, activeActivityIds,          processEngine.getProcessEngineConfiguration().getActivityFontName(),          processEngine.getProcessEngineConfiguration().getLabelFontName(),          processEngine.getProcessEngineConfiguration().getActivityFontName(),        processEngine.getProcessEngineConfiguration().getProcessEngineConfiguration().getClassLoader(), 1.0);          try {          //生成本地图片        File file = new File("D:/test.png");        FileUtils.copyInputStreamToFile(inputStream, file);            return IOUtils.toByteArray(inputStream);           } catch (Exception e) {               throw new RuntimeException("生成流程图异常！", e);           } finally {               IOUtils.closeQuietly(inputStream);          }  }

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