Spring Ioc Configration - Annotation

1.配置类注解@Configuration.

2.Bean注解 @Bean.

3.导入其他配置类@Import.

4.回调函数

@Bean(initMethod = "init", destroyMethod = "cleanup" )

5.作用范围

　　 @Scope("prototype")

6.例子

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

   ctx.register(AppConfig.class, OtherConfig.class);
   ctx.register(AdditionalConfig.class);
   ctx.refresh();

   MyService myService = ctx.getBean(MyService.class);
   myService.doStuff();
}

或者通过注解引入

@ContextConfiguration(classes = {PersistenceConfig.class, CoreConfig.class})

refer to: http://www.tutorialspoint.com/spring/spring_java_based_configuration.htm