Spring包组件扫描麻烦

Question

我正在使用Hibernate和Spring Security制作Spring Maven项目（基本的日志记录形式，带有小小的井字游戏）。一切正常，因为我决定不使用单个Root WebApplicationContext并将其划分为Root和Servlet Context（我被告知使用单一的是不正确的，因为你可以@Autowire控制器进入存储库或服务被禁止）。

这是我的项目结构：

ServletConfig类：

@EnableWebMvc
@Configuration
@ComponentScan(basePackages = {"controller"})
public class ServletConfig extends WebMvcConfigurerAdapter {

@Bean
public InternalResourceViewResolver viewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setViewClass(JstlView.class);
    viewResolver.setPrefix("/WEB-INF/");
    viewResolver.setSuffix(".jsp");
    return viewResolver;
}

@Bean
public MessageSource messageSource() {
    ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
    messageSource.setBasename("messages");
    return messageSource;
}

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}

}

RootConfig类：

@Configuration
@ComponentScan(basePackages = {"services","dao"})
public class RootConfig {
}

WebAppInitializer：

public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

protected Class<?>[] getRootConfigClasses() {
    return new Class[]{RootConfig.class};
}

protected Class<?>[] getServletConfigClasses() {return new Class[]{ServletConfig.class};}

protected String[] getServletMappings() {
    return new String[]{"/"};
}
}

因为我的一个类必须用new（）创建，并且还需要自动装配我正在使用ApplicationContextHolder的服务之一：

@Component
public class ApplicationContextHolder implements ApplicationContextAware {

private static ApplicationContext context;

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

public static ApplicationContext getContext() {
    return context;
}
}

用于以这种方式注入：

this.userService = (UserService) ApplicationContextHolder.getContext().getBean("userService");

当我尝试通过Tomcat运行它时，我得到一个错误：

  

2016-11-20 17:09:54 WARN AnnotationConfigWebApplicationContext：549 - 在上下文初始化期间遇到异常 - 取消刷新尝试：org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'roleServiceImpl'的bean时出错：表示不满意的依赖关系通过字段'dao';嵌套异常是
  org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'roleDaoImpl'的bean时出错：通过字段'sessionFactory'表示的不满意的依赖关系;嵌套异常是
  org.springframework.beans.factory.NoSuchBeanDefinitionException：找不到依赖项[org.hibernate.SessionFactory]的限定bean：预计至少有1个bean可以作为autowire候选者。依赖注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）}   2016-11-20 17:09:54错误ContextLoader：351 - 上下文初始化失败   org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'roleServiceImpl'的bean时出错：通过字段'dao'表示的不满意的依赖关系;嵌套异常是
  org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'roleDaoImpl'的bean时出错：通过字段'sessionFactory'表示的不满意的依赖关系;嵌套异常是
  org.springframework.beans.factory.NoSuchBeanDefinitionException：找不到依赖项[org.hibernate.SessionFactory]的限定bean：预计至少有1个bean可以作为autowire候选者。依赖注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）}

以下是我的问题：

1. @ComponentScan是否正确制作？也许它缺少一些要扫描的软件包（比如配置？）？

2. 是否可以只使用一个Config类？就像： @ComponentScan（ “一切”）？

3. 我是否必须使用Root或Servlet配置类中的Spring Security配置扫描包？

@EDIT 1：

这是我的ApplicationContextHolder类

@Component
public class ApplicationContextHolder implements ApplicationContextAware {

private static ApplicationContext context;

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

public static ApplicationContext getContext() {
    return context;
}
}

@EDIT 2：

HibernateConfiguration类：

@Configuration
@EnableTransactionManagement
@ComponentScan(basePackages = "com/configuration")
@PropertySource(value = {"classpath:application.properties"})
public class HibernateConfiguration {

@Autowired
private Environment environment;

@Bean
public LocalSessionFactoryBean sessionFactory() {
    LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(dataSource());
    sessionFactory.setPackagesToScan("com.entities");
    sessionFactory.setHibernateProperties(hibernateProperties());
    return sessionFactory;
}

@Bean
public DataSource dataSource() {
    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
    dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
    dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
    dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
    return dataSource;
}

private Properties hibernateProperties() {
    Properties properties = new Properties();
    properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
    properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
    properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
    properties.put("hibernate.hbm2ddl.auto", environment.getRequiredProperty("hibernate.hbm2ddl.auto"));
    return properties;
}

@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
    HibernateTransactionManager transactionManager = new HibernateTransactionManager();
    transactionManager.setSessionFactory(sessionFactory);
    return transactionManager;
}

}

我在这里使用的是AppContextHolder：

@Data
public class Game {

@Autowired
private UserService userService; ....



public Game() {

this.userService = (UserService) ApplicationContextHolder.getContext().getBean("userService");
}