Spring IOC 及bean容器 注入

1 Spring Bean 装配之Bean的定义及其作用域的注解实现

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​ < context:component-scan>

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例子

<context:component-scan base-package="bean.BeanAnnotation">

   <context:component-scan/>

package bean;
@Component
public class BeanAnnotation {
	public void  say(){
    System,out.print("Hello Spring");
	}
}

    @Test
    BeanAnnotation bean=super.getBean("beanAnnotation");//类名小写
        bean.say("This is Tese");
}

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2 Spring装配 基于java容器的注解说明 @importResource和@Value

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public class MyDriverManager {

    public MyDriverManager(String url, String userName, String password) {
        System.out.print(url);
        System.out.print(userName);
        System.out.print(password);

    }
}

@Configuration
@ImportResource("classpath:config.xml")
public class StoreConfig {

    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.username}")
    private String username;
    @Value("${jdbc.password}")
    private String password;

    @Bean
    public MyDriverManager myDriverManager() {
        return new MyDriverManager(url, username, password);
    }

}

public class Test {

    @Test
    public void testMyDreiverManager() {
        MyDriverManager myDriverManager = super.getBean("myDriverManager");
        myDriverManager.getClass().getName();
    }
}

• jdbc.password=root
  jdbc.url=127.0.0.1
  jdbc.username=root

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3@Bean 和@Scope

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4基于泛型的自动装配

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Aware 和Autowiring