在Activiti中使用Java服务任务可以通过编写一个实现了org.activiti.engine.delegate.JavaDelegate接口的Java类来实现。具体步骤如下:
public class MyJavaServiceTask implements JavaDelegate {
@Override
public void execute(DelegateExecution execution) {
// 在这里编写Java服务任务的逻辑
System.out.println("Java服务任务执行中...");
}
}
<serviceTask id="javaServiceTask" activiti:class="com.example.MyJavaServiceTask" />
RepositoryService repositoryService = processEngine.getRepositoryService();
Deployment deployment = repositoryService.createDeployment()
.addClasspathResource("myProcess.bpmn")
.deploy();
RuntimeService runtimeService = processEngine.getRuntimeService();
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess");
通过以上步骤,就可以在Activiti中使用Java服务任务了。当流程执行到Java服务任务时,会自动调用实现的execute方法执行相应的逻辑。