Hello, boss! I just got in touch with this, and then I watched the video and wrote the code.
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
/ / deployment process definition
@Test
public void test2(){/ / get a deployment builder object to load the process definition file (test.bpmn,test.png) and complete the deployment of the process definition
    DeploymentBuilder builder = processEngine.getRepositoryService().createDeployment();/ / load the process definition file
    builder.addClasspathResource("test1.bpmn");
    builder.addClasspathResource("test1.png");/ / deployment process definition
    org.activiti.engine.repository.Deployment deployment = builder.deploy();
    System.out.println(deployment.getId());
} when running, the operation mode is as shown in the following figure. 
  
 which boss seems to have a look? thank you very much 
