0
点赞
收藏
分享

微信扫一扫

Java Spring Tutorial -- 注入Bean

何晓杰Dev 2023-05-09 阅读 62


文件结构:

Java Spring Tutorial -- 注入Bean_spring

MessageBean.java

package com.zxl.spring;

public class MessageBean {
	private RefMessageBean refMessageBean;
	public MessageBean(RefMessageBean refMessageBean){
		this.refMessageBean=refMessageBean;
	}
	public RefMessageBean getRefMessageBean(){
		return refMessageBean;
	}
}

RefMessageBean.java

package com.zxl.spring;

public class RefMessageBean {
	private String message;

	public RefMessageBean(String message){
		this.message=message;
	}
	/**
	 * @return the message
	 */
	public String getMessage() {
		return message;
	}

	
}

SpringApp04.java

package com.zxl.spring;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringApp04 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext("SpringBeans.xml");
		MessageBean messageBean =(MessageBean) context.getBean("messageBean");
		System.out.println(messageBean.getRefMessageBean().getMessage());
		context.close();
	}

}



SpringBean.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://www.springframework.org/schema/beans"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
	<bean id="messageBean" class="com.zxl.spring.MessageBean">
	    <constructor-arg ref="refMessageBean" />
	</bean>

	<bean id="refMessageBean" class="com.zxl.spring.RefMessageBean">
		<constructor-arg value="hello !" />
	</bean>
		
</beans>








举报

相关推荐

0 条评论