java - Spring项目中hibernate Autowiring 的小麻烦，未找到bean错误

Question

我想尝试 <context:component-scan base-package /> spring 3.0.5 的功能。

我在 applicationContext 中有此条目:

<context:component-scan base-package="com.project.personal.admin.model"/>
<context:annotation-config />

我有一个管理器类，它知道如何创建任何 POJO 和 DAO。

@Component("manager")
public class ManagerImpl implements ApplicationContextAware, Manager {

  ApplicationContext applicationContext;

  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    this.applicationContext = applicationContext;
  }

  public User CreateUser(){
    return (User) getInstance("user", User.class);
  }


  public UserDAO createUserDAO(){
    return (UserDAO) getInstance("userDAO", UserDAO.class);
  }
 //....
}

像 Pojo :

@Entity
@Table(name = "user", uniqueConstraints = {
@UniqueConstraint(columnNames = {"email"})})
@Component("user")
public class User {

  public User() {
    this.dateCreated = new Date();
  }


  @Id
  @GeneratedValue(generator = "uuid")
  @GenericGenerator(name = "uuid", strategy = "uuid.hex")
  @Column(name = "id", length = 32)
  private String id;
  @Column(name = "email", length = 150)
  private String email;

 //setters and getters
}

我的测试课是这样的

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:META-INF/test-project-admin-config.xml"})
@TransactionConfiguration(defaultRollback=true)
@Transactional
public class UserDAOImplTest {
    //@Autowired
    @Resource(name="manager")
    Manager manager;

    @Autowired
    UserDAO userDAO;

    public UserDAOImplTest() {
    }

    @Test
    public void testSave() {
        User u1 = manager.CreateUser();
        u1.setEmail("misterjojtoo@gmail.com");
        u1.setFullname("joseph djomeda");
        u1.setPassword("psaumedetdavid");
        userDAO.save(u1);
        User expResult = u1;

        User result = (User)userDAO.getById(u1.getId());

        Assert.assertEquals(expResult, result);
        Assert.assertEquals(expResult.getId(), result.getId());
     }

    }

我遇到了这个错误:

org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.project.personal.admin.manager.Manager] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

大多数时候，我在每个类的应用程序上下文中创建条目，并且它一直在工作，这一次我想尝试包扫描。难道是我哪里做得不好？我尝试过 Autowired，后来又尝试了 Resource。所以我没主意了

感谢您阅读本文。

Answer 1

确保您的Manager位于正确的包中(或者您的base-package设置正确)(我不会提及这一点，但似乎很可疑模型包中有管理器)