Spring 引导 Vaadin7 集成 - 无法与 @Autowired 绑定

Spring Boot Vaadin7 Integration - Cannot bind with @Autowired

我创建了项目:http://start.spring.io/ 我用 Maven 构建它,它是 运行.

所以我正在创建实体 Person:

@Entity
public class Person implements Serializable {

private static final long serialVersionUID = 1L;

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;

@Temporal(TemporalType.TIMESTAMP)
private Date birthDay;

@NotNull(message = "Name is required")
@Size(min = 3, max = 50, message = "Name must be longer than 3 and less than 40 characters")
private String name;

private Boolean colleague;

private String phoneNumber;

@NotNull(message = "Email is required")
@Pattern(regexp = ".+@.+\.[a-z]+", message = "Must be valid email")
private String email;

 //----- GETTERS AND SETTERS -----------
}

我正在为此实体创建存储库 PersonRepo:

public interface PersonRepo extends JpaRepository<Person, Long> {

@Override
<S extends Person> S save(S arg0);

@Override
long count();
}

这是我的用户界面 class:

@SpringUI
@Theme("valo")
public class MyUI extends UI {
private static final long serialVersionUID = 1L;

private final PersonRepo personRepo;

@Autowired
private MyUI(PersonRepo personRepo) {
    this.personRepo = personRepo;
}

@Override
protected void init(VaadinRequest request) {
    VerticalLayout layout = new VerticalLayout();
    layout.setDefaultComponentAlignment(Alignment.MIDDLE_CENTER);

    Person person = new Person();
    person.setName("Person");
    person.setEmail("Email");
    person.setColleague(false);
    person.setBirthDay(new Date());
    personRepo.save(person);

    Label helloWorld = new Label();
    helloWorld.setValue("Persons: " + personRepo.count());
    helloWorld.setStyleName(ValoTheme.LABEL_H1);
    helloWorld.setSizeUndefined();

    layout.addComponent(helloWorld);

    setContent(layout);
}
}

这里我只@Autowire PersonRepo,创建新的Person 并保存在数据库中,而不是在Label 中显示Persons 的数量。但是 personRepo 为空,@Autowire 不工作。我不知道我的错误在哪里...

好吧@SpringBootApplication 只扫描同一包及以下的组件。这就是应用程序无法创建@Autowire 的原因。在我的示例中,每个 class 都在不同的包中。

如果我们将应用程序class放入顶级包中,我们可以解决这个问题,或者我们可以手动定义@ComponentScan,以扫描特定的包。