Spring ioc注解方式获取bean

 

package com.ls.spring.ioc.dummy;

import org.springframework.stereotype.Component;

@Component
public class B {

	public void put() {
		System.out.println("B is outing...");
	}
	
}

package com.ls.spring.ioc.dummy;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class A {
	@Autowired
	private B b;
	
	public A() {
		super();
	}

	public A(B b) {
		super();
		this.b = b;
	}

	public B getB() {
		return b;
	}

	public void setB(B b) {
		this.b = b;
	}
	
}

 

<?xml version="1.0" encoding="GBK"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

<context:component-scan base-package="com.ls.spring.ioc.dummy"/>

</beans>

 

package com.ls.spring.ioc.dummy;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestBeanFactoryViaScan {
	
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("com/ls/spring/ioc/dummy/ioc-classpath-scan.xml");
		A a = (A) context.getBean("a");
		a.getB().put();
	}
	
}