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@Autowire无法正常工作很奇怪。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
@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。
您的应用程序上下文文件在哪里？如果您没有，则应该考虑给Spring一些带有诸如@ComponentScan的批注的提示，以使所有bean都可用。
—
马里奥·桑蒂尼
@MarioSantini，请参阅更新1
—
Mike3355 '16
我认为每次更新后，错误都有变化吗？如果可能，请发布您的项目结构，并在每种情况下发布错误日志/堆栈跟踪。更好地了解“为什么”发生了这些错误，而不是“什么”使错误消失了。也将对遇到类似问题的其他人有所帮助。
—
Ameen.M，2016年