Spring 的 Bean 中通过 Autowired 注解可以自动注入一些相关的资源

待我称王封你为后i 2022-03-20 11:25 180阅读 0赞

Spring 的 Bean 中通过 Autowired 注解可以自动注入的一些系统 Bean。

package sping.analysis.aware;
    
    import java.util.Locale;
    
    import org.springframework.beans.factory.BeanFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationEventPublisher;
    import org.springframework.core.io.ResourceLoader;
    import org.springframework.stereotype.Component;
    /** * Spring 的 Bean 中通过 Autowired 注解可以自动注入一些相关的资源 * * @author slHuang * @since 2019-02-08 */
    @Component
    public class MyBeanAwareByAnnotation { 
    
    	@Autowired
    	private BeanFactory beanFactory;
    	
    	@Autowired
    	private ResourceLoader resourceLoader;
    	
    	@Autowired
    	private ApplicationEventPublisher applicationEventPublisher;
    	
    	@Autowired
    	private ApplicationContext applicationContext;
    	
    	public void useBeanFactory() { 
    		System.out.println(beanFactory.getBean("myBeanAwareByAnnotation"));
    	}
    	
    	public void useResourceLoader() { 
    		System.out.println(resourceLoader.getResource("classpath:src/main/resources/application.xml"));
    	}
    	
    	public void useApplicationEventPublisher() { 
    		System.out.println(this.applicationEventPublisher);
    	}
    	
    	public void useApplicationContext() { 
    		System.out.println(applicationContext.getMessage("Message", null, "Not exist", Locale.JAPAN));
    	}
    }