spring的基本操作IOC

前言：
Spring通过IOC/DI来实现获取对象
准备：
1． 建Spring2工程。
2． 导入Spring包
具体实现：
1． Person.jav

package com.test;

public interface Person {
	public void work();
}

2． Chinese.java

package com.test;

public class Chinese implements Person{

	private Tool tool;
	
	public void setTool(Tool tool) {
		this.tool = tool;
	}

	@Override
	public void work() {
		tool.realwork();
	}
	
}

3． Tool.java

package com.test;

public interface Tool {
	public void realwork();
}

4． ConcreteToolA.java

package com.test;

public class ConcreteToolA implements Tool {

	@Override
	public void realwork() {
		System.out.println("realwork from ConcreteToolA");
	}

}

5． ConcreteToolB.java

package com.test;

public class ConcreteToolB implements Tool {

	@Override
	public void realwork() {
		System.out.println("realwork from ConcreteToolB");
	}

}

6． applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

	<bean id="toolA" class="com.test.ConcreteToolA"></bean>
	<bean id="toolB" class="com.test.ConcreteToolB"></bean>

	<bean id="chinese" class="com.test.Chinese">
		<property name="tool" ref="toolB"></property>
	</bean>
	

</beans>

7． Client.java

package com.test;

import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;

public class Client {
	public static void main(String[] args) {
		ClassPathResource cpr=new ClassPathResource("applicationContext.xml");
		
		XmlBeanFactory factory=new XmlBeanFactory(cpr);
		
		Person person=(Person)factory.getBean("chinese");
		
		person.work();
	}
}