Spring 依赖注入——构造器注入
一、配置文件
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:c="http://www.springframework.org/schema/c" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd "> <bean id="blankDisc" class="com.hk.BlankDisc" c:_0="aaaa" c:_1="111"/> </beans>
二、配置javaBean
package com.hk;
/**
* User: hk
* Date: 2017/8/5 下午8:00
* version: 1.0
*/
public interface CompactDisc {
void play();
}
package com.hk; /** * User: hk * Date: 2017/8/5 下午8:46 * version: 1.0 */ public class BlankDisc implements CompactDisc { private String title; private String artist; public BlankDisc(String title, String artist) { this.title = title; this.artist = artist; } public void play() { System.out.println("title:" + title + ",artist:" + artist); } }
三、测试类
package com.hk; import javafx.application.Application; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import java.util.List; /** * Hello world! * */ public class App {public static void main( String[] args ) { ApplicationContext application = new ClassPathXmlApplicationContext("classpath:applicationContext.xml"); CompactDisc c = (CompactDisc) application.getBean("blankDisc"); c.play(); } }