1、首先spring的xml配置文件加上一句话
<context:annotation-config></context:annotation-config><!-- 自动装配 --> <bean id="piano" class="com.test.pro.Instrument"> <property name="name" value="钢琴"></property> </bean> <bean id="jack" class="com.test.pro.Singer"> </bean>
package com.test.pro; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; public class Singer { private Instrument piano; public Instrument getPiano() { return piano; } @Autowired /*这个地方加上注解,会自动注入*/ public void setPiano(Instrument piano) { this.piano = piano; } public void saying() { System.out.println(piano.getName()); } }
或者采用直接注入的办法
package com.test.pro; import org.springframework.beans.factory.annotation.Autowired; public class Singer { @Autowired /*这个地方加上注解,会自动注入*/ private Instrument piano; public void saying() { System.out.println(piano.getName()); } }
3、测试类
package com.test.pro; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Main { public static void main(String[] args) { // TODO Auto-generated method stub ApplicationContext ctx=new ClassPathXmlApplicationContext("spring.xml"); Singer singer=(Singer)ctx.getBean("jack"); singer.saying(); } }
【spring教程之九】spring注解@Autowired自动装配
原文:http://blog.csdn.net/itbuluoge/article/details/44539747