錯誤創建名稱爲豆「XXX：不滿意依賴通過現場表示 'XXX'

下面是跟蹤：錯誤創建名稱爲豆「XXX：不滿意依賴通過現場表示 'XXX'

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testController': Unsatisfied dependency expressed through field 'testDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testDAO': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class modele.Test

...

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testDAO': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class modele.Test

...

Caused by: java.lang.IllegalArgumentException: Not a managed type: class modele.Test

根據我的理解，根錯誤是Not a managed type: class modele.Test，這與測試未被識別爲實體有關嗎？

這裏是我的項目：

架構：http://imgur.com/a/2xsI4

Application.java

@SpringBootApplication 
@ComponentScan("boot") 
@ComponentScan("dao") 
@ComponentScan("modele") 
@EnableJpaRepositories("dao") 
public class Application { 

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

}

TestDAO.java

@Transactional 
public interface TestDAO extends CrudRepository<Test, Long > { 

    /** 
    * This method will find an User instance in the database by its email. 
    * Note that this method is not implemented and its working code will be 
    * automagically generated from its signature by Spring Data JPA. 
    */ 
    public Test findByEmail(String email); 

}

Test.java

@Entity 
@Table(name = "test") 
public class Test { 

    // An autogenerated id (unique for each user in the db) 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private long id; 

    @NotNull 
    private String email; 

    @NotNull 
    private String name; 

    // Public methods 

    public Test() { 
    } 

    public Test(long id) { 
     this.id = id; 
    } 

    public Test(String email, String name) { 
     this.email = email; 
     this.name = name; 
    } 
//setters and getters

我會很感激的任何幫助。謝謝！

來源

2016-12-31 Chuck

請注意，如果將應用程序放在「dao」，「modele」和「boot」的父包中，那麼這4個最後的註釋是無用的。 Spring Boot將基於此自動應用合理的默認值。 –

是的，但我的代碼並非如此。儘管我現在已經改變了！ – Chuck

根據您目前的設置，你需要添加

@EntityScan("modele")

Test是不是真的每說一個Spring bean，這是一個JPA實體。 @ComponentScan的搜索結果@Configuration，@Component，@Service和@Repository，@Controller和@RestController。 @EntityScan將查找實體。

您可以參閱：Difference between @EntityScan and @ComponentScan

您的配置會容易得多，如果你想移動：

Application.java在你的包的根：com.domain.project;
您的知識庫在com.domain.project.dao之下;
您的實體根據com.domain.project.domain。

然後，你就不需要@EntityScan，@ComponentScan和@EnableJpaRepositories，SpringBoot只會皮卡一切com.domain.project找到。*

來源

2016-12-31 14:44:19 alexbt

謝謝，修改了架構，正如您在其中解釋的那樣。 – Chuck

錯誤創建名稱爲豆「XXX：不滿意依賴通過現場表示 'XXX'

回答

相關問題