考虑在配置中定义“包”类型的bean [Spring-Boot]

  • Z时代
  • 2024-01-10
  • 分类：问答

我收到以下错误：

***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of method setApplicant in webService.controller.RequestController required a bean of type 'com.service.applicant.Applicant' that could not be found.
Action:
Consider defining a bean of type 'com.service.applicant.Applicant' in your configuration.

我之前从未见过此错误，但是奇怪的是@Autowire无法正常工作。这是项目结构：

申请人界面

public interface Applicant {
    TApplicant findBySSN(String ssn) throws ServletException;
    void deleteByssn(String ssn) throws ServletException;
    void createApplicant(TApplicant tApplicant) throws ServletException;
    void updateApplicant(TApplicant tApplicant) throws ServletException;
    List<TApplicant> getAllApplicants() throws ServletException;
}

申请人Impl

@Service
@Transactional
public class ApplicantImpl implements Applicant {
private static Log log = LogFactory.getLog(ApplicantImpl.class);
    private TApplicantRepository applicantRepo;
@Override
    public List<TApplicant> getAllApplicants() throws ServletException {
        List<TApplicant> applicantList = applicantRepo.findAll();
        return applicantList;
    }
}

现在，我应该可以只通过Autowire Applicant进行访问，但是在这种情况下，当我在我的应用程序中调用它时，它将无法正常工作

@RestController:

@RestController
public class RequestController extends LoggingAware {
    private Applicant applicant;
    @Autowired
    public void setApplicant(Applicant applicant){
        this.applicant = applicant;
    }
    @RequestMapping(value="/", method = RequestMethod.GET)
    public String helloWorld() {
        try {
            List<TApplicant> applicantList = applicant.getAllApplicants();
            for (TApplicant tApplicant : applicantList){
                System.out.println("Name: "+tApplicant.getIndivName()+" SSN "+tApplicant.getIndSsn());
            }
            return "home";
        }
        catch (ServletException e) {
            e.printStackTrace();
        }
        return "error";
    }
}

------------------------更新1 -----------------------

我加了

@SpringBoot" title="SpringBoot">SpringBootApplication
@ComponentScan("module-service")
public class WebServiceApplication extends SpringBootServletInitializer {
    @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(WebServiceApplication.class);
    }
    public static void main(String[] args) {
        SpringApplication.run(WebServiceApplication.class, args);
    }
}

错误消失了，但是什么也没发生。然而，当我注释掉的一切交易与Applicant在RestController以增加之前@ComponentScan()，我能够返回一个字符串UI，从而意味着我RestController是工作，现在它被跳过。我Whitelabel

Error Page现在很丑。

---------------------更新2 --------------------------- —

我添加了它抱怨的bean的基本包。错误读取：

***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of method setApplicantRepo in com.service.applicant.ApplicantImpl required a bean of type 'com.delivery.service.request.repository.TApplicantRepository' that could not be found.
Action:
Consider defining a bean of type 'com.delivery.request.request.repository.TApplicantRepository' in your configuration.

我加了 @ComponentScan

@SpringBootApplication
@ComponentScan({"com.delivery.service","com.delivery.request"})
public class WebServiceApplication extends SpringBootServletInitializer {
    @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(WebServiceApplication.class);
    }
    public static void main(String[] args) {
        SpringApplication.run(WebServiceApplication.class, args);
    }
}

----------------------------更新3 -------------------- -

添加：

@SpringBootApplication
@ComponentScan("com")
public class WebServiceApplication extends SpringBootServletInitializer {

仍然在抱怨我的ApplicantImpl课堂，@Autowires我回购TApplicantRepository了它。

回答：

可能是因为该项目已分解为不同的模块。

@SpringBootApplication
@ComponentScan({"com.delivery.request"})
@EntityScan("com.delivery.domain")
@EnableJpaRepositories("com.delivery.repository")
public class WebServiceApplication extends SpringBootServletInitializer {

以上是 考虑在配置中定义“包”类型的bean [Spring-Boot] 的全部内容， 来源链接： utcz.com/qa/414216.html

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