how to configure service and repository classes spring boot

Question

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
@EnableScheduling
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Repository:

@Repository
public interface FileRepository { }


public class FileRepositoryImpl implements FileRepository {}

Service and Impl:

@Service
public interface FileService { }


public class FileService implements FileService {

@Autowired 
FileReposiory repo;

}

TasK:

@Component
public class DummyTask  {

    @Autowired
    private FileService fileService;



    public void run(String schedule) {
        fileService.runtask(schedule);
    }
}

I am trying to run a simple application using the annotations above. This application has no REST endpoint or use a controller. My fileService has null reference when executing DummyTask.

Also, when I am running the Junit test to test the FileRepository, I also get fileRepository as null. Could someone please point out how it is unsatisfied and how to correct?

public class FileRepositoryTest {

    @Autowired
    private FileRepository fileRepository;


    @Test
    public void testGetCustomerDir() {

       //blah    
    }
}

I Execute my task as follows:

 threadPoolTaskScheduler.schedule(new Job(reportSchedule), new CronTrigger(reportSchedule.getCronExpression()));

   class Job implements Runnable {
        private String schedule;

        public Job (String schedule) {
            this.schedule = schedule;
        }

        @Override
        public void run() {
           reportExportSchedulerTask.run(schedule);
        }
    }

score 0 · Accepted Answer · answered Sep 28 '17 at 11:36

0

DummyTask needs to be a Spring bean itself in order for Spring to autowire beans in it for you. You can fix this by marking it as a @Component:

@Component
public class DummyTask implements Runnable {

    @Autowired
    private FileService fileService;


    @Override
    public void run() {
        fileService.runtask(blah);
    }
}

As for the tests, you should mark it as a @SpringBootTest. This will make the beans available to the test to be autowired.

@RunWith(SpringRunner.class)
@SpringBootTest
public class FileRepositoryTest {

    @Autowired
    private FileRepository fileRepository;


    @Test
    public void testGetCustomerDir() {

       //blah    
    }
}

answered Sep 28 '17 at 11:36

Plog

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thanks, I updated `DummyTask` which has a member `ReportScheduler` which I initialise when scheduling. I get `Parameter 0 of constructor in DummyTask required a bean of type ReportSchedule that could not be found`. Can you update your answer ? – M06H Sep 28 '17 at 12:02
Now that DummyTask is a bean you need to let Spring instatiate it for you and so you shouldn't have a custom constructor. You can fix this by also marking ReportSchedule as a @Component – Plog Sep 28 '17 at 12:05
I made `DummyTask` a Component now, with autowire `FileService` but getting `Field fileService in class required of a bean of type FileService could not be found. ` updated above the code – M06H Sep 28 '17 at 12:33
You should put the @Service annotation on the class not the interface – Plog Sep 28 '17 at 13:01

how to configure service and repository classes spring boot

1 Answers1