SpringBoot - activiti - Injecting org.activiti.engine.TaskService

Question

I've created this class:

public class ActivitiWorkflowService  {
    

    private final TaskService taskService;

..
}

but I have this problem when init the project:

     No qualifying bean of 
type 'org.activiti.engine.TaskService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

Answer 1

I expect that your class has a constructor such as:

public class ActivitiWorkflowService  {
    

    private final TaskService taskService;

    public ActivitiWorkflowService(TaskService taskService) {
        this.taskService = taskService;
    }
}

The error you are getting is because Spring cannot autowire this class to the ActivitiWorkflowService - it probably was not defined in the Spring context.

Depending on the configuration you use you can either:

Define class with @Component or @Service annotation and let @ComponentScan do its work:

@Component //@Service
public TaskService {
...
}

or if you are using @Configuration class define the bean of type TaskService

@Configuration
public class AppConfig {
    @Bean
    public TaskService taskService() {
         return new TaskService();
    }
    
    @Bean
    public ActivitiWorkflowService activitiWorkflowService(TaskService taskService) {
        return new ActivitiWorkflowService(taskService);
    }
}