フォームインタフェースを継承するスプリングインジェクションBean

Question

私はいくつかの@Beanアノテーションを設定しています。 しかし、インタフェースから継承するようにBeanを変更すると、動作しません。特別な注釈が必要なのですか？

@Configuration 
@ComponentScan("io.github.aaa4") 
//@ComponentScan({ "io.github.aaa4.dao", "io.github.aaa4.entity","io.github.aaa4.Servlets"}) 
@EnableTransactionManagement 
public class AppConfig { 

    @Bean 
    public ComboPooledDataSource myDataSource() throws PropertyVetoException { 
     ComboPooledDataSource ds = new ComboPooledDataSource(); 

     ds.setDriverClass("com.mysql.jdbc.Driver"); 
     ds.setJdbcUrl("jdbc:mysql://localhost:3306/emp?useSSL=false"); 
     ds.setUser("emp"); 
     ds.setPassword("emp"); 
     ds.setMinPoolSize(2); 
     ds.setMaxPoolSize(20); 
     ds.setMaxIdleTime(30000); 

     return ds; 
    } 

    @Bean 
    public LocalSessionFactoryBean mySessionFactory() throws PropertyVetoException { 
     LocalSessionFactoryBean sf = new LocalSessionFactoryBean(); 
     Properties hibernateProperties = new Properties(); 
     hibernateProperties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect"); 
     hibernateProperties.setProperty("hibernate.show_sql", "true"); 

     sf.setDataSource(myDataSource()); 
     sf.setPackagesToScan("io.github"); 
     sf.setHibernateProperties(hibernateProperties); 

     return sf; 
    } 

    @Bean 
    @Autowired 
    public HibernateTransactionManager myTransactionManager(SessionFactory sessionFactory) { 
     HibernateTransactionManager htm = new HibernateTransactionManager(); 
     htm.setSessionFactory(sessionFactory); 

     return htm; 
    } 


    @Bean 
    public UserDao userDaoImpl() { 
     return new UserDaoImpl(); 
    } 

    @Bean 
    public DBService dBServiceImpl() { 
     return new DBServiceImpl(); 
    } 

} 

serviceImplは問題

INFO: Using DataSource [com.mchange.v2.c3p0.ComboPooledDataSource[ identityToken -> 1hge1459o1fr6qmlst9469|42e99e4a, dataSourceName -> 1hge1459o1fr6qmlst9469|42e99e4a ]] of Hibernate SessionFactory for HibernateTransactionManager 

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'io.github.aaa4.services.DBServiceImpl' available 

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:353) 

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340) 

    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1093) 
    at io.github.aaa4.Main.main(Main.java:30) 

で

@Service 
public class DBServiceImpl implements DBService { 

    //inject user DAO 
    @Autowired 
    private UserDao userDao; 

    @Transactional 
    public void addUser(MyUser user) { 
     userDao.createUser(user); 
    } 

    @Transactional 
    public List<MyUser> getUserList() { 
     return userDao.getusers(); 
    } 

    @Transactional 
    public void deleteUser(int theId) { 
     userDao.deleteUser(theId); 
    } 


} 

メインクラス

public class Main { 
public static void main(String[] args) { 
     AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class); 

     DBServiceImpl service = ctx.getBean(DBServiceImpl.class); 

     MyUser user = new MyUser("alice", "and her passwd"); 
     System.out.println("this is the user:" + user); 
     service.addUser(user); 
     service.addUser(user); 
     service.addUser(user); 
     service.addUser(user); 
     System.out.println("User added!"); 
     service.deleteUser(2); 
     System.out.println("user number id = 2 deleted"); 
     List<MyUser> userList = service.getUserList(); 
     for (MyUser users : userList) 
      System.out.println(users); 
     ctx.close(); 
    } 

} 

スタックトレースをスニペット輸入withot

Configクラススニペット注釈@EnableAspectJAutoProxy（proxyTargetClass =真）と

Configクラス以上

WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around 
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) 
    at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:223) 
    at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:702) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:527) 
    at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84) 
    at io.github.aaa4.Main.main(Main.java:14) 
Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around 
    at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.<clinit>(ReflectiveAspectJAdvisorFactory.java:77) 
    at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.initBeanFactory(AnnotationAwareAspectJAutoProxyCreator.java:78) 
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.setBeanFactory(AbstractAdvisorAutoProxyCreator.java:60) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1647) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1615) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) 
    ... 10 more 
Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Around 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    ... 16 more 

Answer 1

ではなく、実装のインターフェイスを使用してみてください

DBService service = ctx.getBean(DBService.class); 

あなたのサービスメソッドに@Transactional注釈を持っています。起動時にすべて@Transactionalの注釈をスキャンし、対象となるメソッドがトランザクションになるようにする必要があります。トランザクションの振る舞いを追加するために、Springはクラスのプロキシを作成します。だからあなたはあなたの豆を手に入れることができません。

Answer 2

私はあなたが基準チェックスプリングdocに関するDBServiceImpl service = ctx.getBean(DBServiceImpl.class);DBService service = ctx.getBean(DBService.class);

にこの行に変更を加える必要があり、だと思うUsing the @Bean annotation Spring DOC