无法将存储库从外部 Jar 自动装配到 Spring Boot App

deD*_*ari 7 java spring jpa spring-data-jpa spring-boot

我已将应用程序的整个实体和存储库接口打包到一个 jar 中。存储库是用@Repository 注释编写的:

@Repository
public interface InternalUserRepository extends JpaRepository<InternalUser, Long>{

}
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我已经将这个 jar 文件包含在我的 spring 启动应用程序中,并尝试从控制器自动连接这样的接口:

@RestController
public class AuthenticationController {

    @Autowired
    AuthenticationService authenticationService;

    @Autowired
    InternalUserRepository internalUserRepository;


    @GetMapping("/")
    public String home() {
        return "Hello World!";
    }

}
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我的主应用程序类是这样写的:

@SpringBootApplication
@EnableJpaRepositories
@ComponentScan("com.cdac.dao.cdacdao.*")
public class CdacAuthenticationMgntApplication {

public static void main(String[] args) {
    SpringApplication.run(CdacAuthenticationMgntApplication.class, args);
}
}
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存储库没有自动装配。当我启动 Spring boor 应用程序时,出现以下错误:

***************************
APPLICATION FAILED TO START
***************************

Description:

Field internalUserRepository in 
com.cdac.user.cdacauthenticationmgnt.controller.AuthenticationController required a bean of type 'com.cdac.dao.cdacdao.repository.InternalUserRepository' that could not be found.


Action:

Consider defining a bean of type 'com.cdac.dao.cdacdao.repository.InternalUserRepository' in your configuration.
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有没有人尝试过类似的架构?

dun*_*nni 10

如果您的 JPA 存储库与 Spring Boot 应用程序类位于不同的包中,则必须在EnableJpaRepositories注释上指定该包,而不是Component

@EnableJpaRepositories("com.cdac.dao.cdacdao")
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您指定的包ComponentScan用于将类检测为常规 Spring bean,而不是存储库接口。


Mạn*_*yễn -1

我记得,@ComponentScan应该采用包的完整路径,所以我认为你的package.*不起作用。

尝试改用类型安全的组件扫描:

// You refer to your packages of your base project and your module here. 
// Choose the class so that their package is cover all child package
@SpringBootApplication(scanBasePackageClasses = {xxx. InternalUserRepository.class, xxx.CdacAuthenticationMgntApplication.class}) 

@EnableJpaRepositories
// No need to explicit @ComponentScan
public class CdacAuthenticationMgntApplication {
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或者你可以尝试@EnableJpaRepositories("com.cdac.dao.cdacdao")

不管怎样,你应该选择最外层包中的类(Spring也会尝试在这些组件扫描包的子包中查找bean)