通过在classpath自动扫描方式把组件纳入spring容器中管理例子

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1、1.此处要注入一股Functions类,采用扫描注入的组件的方式须该类有一个接口,先写出Functions接口FunctionsInterface.javapackage scan.impl;public interface FunctionsInterface{   public abstract void show();}2.Functions.java实现接口package scan.impl;import javax.annotation.PostConstruct;import javax.annotation.PreDestroy;import org

2、.springframework.stereotype.Service;@Service("functions")public class Functions implements FunctionsInterface{   /*(non-Javadoc)   *@seescan.impl.FunctionsInterface#show()   */  @Override   public void show(){    System.out.println("我是扫描装配的!");  }     @PostConstruct   public void init

3、(){    System.out.println("我是初始化方法!");  }     @PreDestroy   public void destroy(){    System.out.println("我是销毁方法!");  }}3.测试类FunctionTest.javapackage scan.impl;import javax.annotation.PostConstruct;import javax.annotation.PreDestroy;import org.springframework.stereotype.Service;@Servi

4、ce("functions")public class Functions implements FunctionsInterface{   /*(non-Javadoc)   *@seescan.impl.FunctionsInterface#show()   */  @Override   public void show(){    System.out.println("我是扫描装配的!");  }     @PostConstruct   public void init(){    System.out.println("我是初始化方法!");  } 

5、    @PreDestroy   public void destroy(){    System.out.println("我是销毁方法!");  }}4.运行结果:我是初始化方法!Finishedcreatinginstanceofbean'functions'Returningcachedinstanceofsingletonbean'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'Returningcachedinstanceofsinglet

6、onbean'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'Returningcachedinstanceofsingletonbean'org.springframework.context.annotation.internalRequiredAnnotationProcessor'Returningcachedinstanceofsingletonbean'org.springframework.context.annotation.internalCo

7、mmonAnnotationProcessor'Returningcachedinstanceofsingletonbean'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor'UnabletolocateLifecycleProcessorwithname'lifecycleProcessor':usingdefault[org.springframework.context.support.DefaultLifecycleProc

8、essor