我們可以獲取已經部署到數據庫中的`.bpmn`以及它對應的流程圖片等數據。 <br/> **1. 引入 commons-io 依賴** ```xml <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.6</version> </dependency> ``` **2. 下載代碼** ```java @Test public void downloadResources() throws IOException { //1、獲取引擎 ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); //2、獲取RepositoryService RepositoryService repositoryService = processEngine.getRepositoryService(); //3、根據流程key獲取ProcessDefinition ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery() .processDefinitionKey("evectionDeployment") .singleResult(); //4、獲取部署ID String deploymentId = processDefinition.getDeploymentId(); //5、構造圖片的InputStream流 String pngName = processDefinition.getDiagramResourceName(); InputStream pngInput = repositoryService.getResourceAsStream(deploymentId, pngName); //6、構造bpmn文件的InputStream流 String bpmnName = processDefinition.getResourceName(); InputStream bpmnInput = repositoryService.getResourceAsStream(deploymentId, bpmnName); //7、構造OutputStream流 File pngFile = new File("e:/evectionflow01.png"); File bpmnFile = new File("e:/evectionflow01.bpmn"); FileOutputStream pngOutStream = new FileOutputStream(pngFile); FileOutputStream bpmnOutStream = new FileOutputStream(bpmnFile); //8、輸入流，輸出流的轉換 IOUtils.copy(pngInput, pngOutStream); IOUtils.copy(bpmnInput, bpmnOutStream); //9、關閉流 pngOutStream.close(); bpmnOutStream.close(); pngInput.close(); bpmnInput.close(); } ```