spring学习11-使用配置类

CompactDisc类
    package soundSystem;
     import org.springframework.stereotype.Component;
     @Component
     public class CompactDisc {
         public CompactDisc() {
             super();
             System.out.println("compactdisc无参构造方法");
         }
         public void play(){
             System.out.println("正在播放音乐....");
         }
     }CDplay类
    package soundSystem;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.stereotype.Component;
     @Component
     public class CDPlayer {
         private CompactDisc cd;
         public CDPlayer() {
             super();
             System.out.println("CDPlayer无参构造方法");
         }
     @Autowired
         public CDPlayer(CompactDisc cd) {
             this.cd = cd;
             System.out.println("CDPlayer有参构造方法");
         }
         public void play(){
             cd.play();
         }
     }App类
    package soundSystem;
     import org.springframework.context.ApplicationContext;
     import org.springframework.context.annotation.AnnotationConfigApplicationContext;
     import org.springframework.context.annotation.ComponentScan;
     public class App {
         public static void main(String[] args){
             ApplicationContext context=new AnnotationConfigApplicationContext(App.class);
             CDPlayer player=context.getBean(CDPlayer.class);
             player.play();
         }
     }appconfig类
    package soundSystem;
     import org.springframework.context.annotation.ComponentScan;
     //spring注解类
     @ComponentScan
     public class Appconfig {
     }运行结果
    [INFO ] 2019-10-29 19:11:30,833 method:org.springframework.context.support.AbstractApplicationContext.prepareRefresh(AbstractApplicationContext.java:583)
     Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@880ec60: startup date [Tue Oct 29 19:11:30 CST 2019]; root of context hierarchy
     [DEBUG] 2019-10-29 19:11:30,857 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,857 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,883 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:30,887 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,965 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,965 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,966 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:30,998 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,998 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:30,998 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:31,000 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,004 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:31,009 method:org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:730)
     Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@40f08448: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,appconfig,CDPlayer,compactDisc]; root of factory hierarchy
     [DEBUG] 2019-10-29 19:11:31,009 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:31,010 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:31,012 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-29 19:11:31,012 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-29 19:11:31,012 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-29 19:11:31,019 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.event.internalEventListenerProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,023 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-29 19:11:31,023 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-29 19:11:31,023 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-29 19:11:31,024 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.event.internalEventListenerFactory' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,028 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-29 19:11:31,029 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'appconfig'
     [DEBUG] 2019-10-29 19:11:31,029 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'appconfig'
     [DEBUG] 2019-10-29 19:11:31,030 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'appconfig' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,032 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'appconfig'
     [DEBUG] 2019-10-29 19:11:31,033 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'CDPlayer'
     [DEBUG] 2019-10-29 19:11:31,033 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'CDPlayer'
     [DEBUG] 2019-10-29 19:11:31,048 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'compactDisc'
     [DEBUG] 2019-10-29 19:11:31,049 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'compactDisc'
     compactdisc无参构造方法
     [DEBUG] 2019-10-29 19:11:31,050 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'compactDisc' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,054 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'compactDisc'
     [DEBUG] 2019-10-29 19:11:31,055 method:org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:757)
     Autowiring by type from bean name 'CDPlayer' via constructor to bean named 'compactDisc'
     CDPlayer有参构造方法
     [DEBUG] 2019-10-29 19:11:31,057 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'CDPlayer' to allow for resolving potential circular references
     [DEBUG] 2019-10-29 19:11:31,058 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'CDPlayer'
     [DEBUG] 2019-10-29 19:11:31,059 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'compactDisc'
     [DEBUG] 2019-10-29 19:11:31,059 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-29 19:11:31,120 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'lifecycleProcessor'
     [DEBUG] 2019-10-29 19:11:31,127 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'CDPlayer'
     正在播放音乐....