Spring自定义对象的注入配置

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         以上文章介绍的方法或方式,都是注入基本数据类型例如String,int等等,本例将介绍自定义对象的注入方式的配置。
【转载使用,请注明出处:http://blog.csdn.net/mahoking

操作步骤:
1、 创建Topic对象。

public class Topic {/**内容*/private String context;public String getContext() {return context;}public void setContext(String context) {this.context = context;}public Topic(String context) {this.context = context;}}

2、 创建Speaker对象。

public class Speaker {private Topic topic;public Topic getTopic() {return topic;}public void setTopic(Topic topic) {this.topic = topic;}/** * 演讲 */public void speech() {System.out.println("[Speaker's Topic Context is ]"+topic.getContext()+".");}}

3、 创建Spring配置文件middleLearn01.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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"><!-- Learn middle 01    使用内部bean,但该bean不能被其他bean使用<bean id="speaker05" class="com.mahaochen.spring.middle.learn05.Speaker"scope="singleton"><property name="topic"><bean class="com.mahaochen.spring.middle.learn05.Topic"><constructor-arg index="0" value="Tour and Recollection" /></bean></property></bean> --><!--  OR Learn middel 02 --><bean id="middleSpeaker01" class="com.mahaochen.spring.middle.learn01.Speaker"scope="singleton"><property name="topic" ref="topic"/></bean><bean id="topic" class="com.mahaochen.spring.middle.learn01.Topic"><constructor-arg index="0" value="Tour and Recollection" /></bean></beans>

4、将Spring配置文件middleLearn01.xml引入到主配置文件beans.xml中。

<import resource="com/mahaochen/spring/middle/learn01/middleLearn01.xml"/>

5、编写测试类TestSpringMiddle01.java。

public class TestSpringMiddle01 {public static void main(String[] args) {BeanFactory beanFactory = new ClassPathXmlApplicationContext("beans.xml");Speaker speaker05 = beanFactory.getBean("middleSpeaker01", Speaker.class);speaker05.speech();}}

【转载使用,请注明出处:http://blog.csdn.net/mahoking




 

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