Spring IoC

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Person 接口

package org.zbq.ioc;public interface Person {public void work();}

Tool 接口

package org.zbq.ioc;public interface Tool {public void realWork();}

Tool 实现类ConcreteToolA

package org.zbq.ioc;public class ConcreteToolA implements Tool {@Overridepublic void realWork() {System.out.println("Real work from Tool A");}}

Tool 实现类ConcreteToolB

package org.zbq.ioc;public class ConcreteToolB implements Tool {@Overridepublic void realWork() {System.out.println("Real work from Tool B");}}

Person实现类 Chinese

package org.zbq.ioc;public class Chinese implements Person {private Tool tool;public Tool getTool() {return tool;}public void setTool(Tool tool) {this.tool = tool;}@Overridepublic void work() {tool.realWork();}}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="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-3.0.xsd"><bean id="toolA" class="org.zbq.ioc.ConcreteToolA"></bean><bean id="toolB" class="org.zbq.ioc.ConcreteToolB"></bean><bean id="chinese" class="org.zbq.ioc.Chinese"><property name="tool" ref="toolB"></property></bean></beans>

Client

package org.zbq.ioc;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 p = (Person)factory.getBean("chinese");p.work();}}