吴裕雄--天生自然轻量级JAVA EE企业应用开发Struts2Sping4Hibernate整合开发学习笔记：Spring_BeanNameAware

<?xml version="1.0" encoding="GBK"?>
<project name="spring" basedir="." default="">
    <property name="src" value="src"/>
    <property name="dest" value="classes"/>

    <path id="classpath">
        <fileset dir="../../lib">
            <include name="**/*.jar"/>
        </fileset>
        <pathelement path="${dest}"/>
    </path>

    <target name="compile" description="Compile all source code">
        <delete dir="${dest}"/>
        <mkdir dir="${dest}"/>
        <copy todir="${dest}">
            <fileset dir="${src}">
                <exclude name="**/*.java"/>
            </fileset>        
        </copy>
        <javac destdir="${dest}" debug="true" includeantruntime="yes"
            deprecation="false" optimize="false" failonerror="true">
            <src path="${src}"/>
            <classpath refid="classpath"/>
            <compilerarg value="-Xlint:deprecation"/>
        </javac>
    </target>

    <target name="run" description="Run the main class" depends="compile">
        <java classname="lee.SpringTest" fork="yes" failonerror="true">
            <classpath refid="classpath"/>
        </java>
    </target>

</project>

<?xml version="1.0" encoding="GBK"?>
<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-4.0.xsd">
    <!-- Spring容器会检测容器中所有Bean，如果发现某个Bean实现了BeanNameAware接口，
    Spring容器会在创建该Bean之后，自动调用该Bean的setBeanName()方法，
    调用该方法时，会将该Bean的配置id作为参数传给该方法
    该方法的实现部分将Spring传入的参数（Bean的配置id）赋为给该Chinese对象的
    beanName实例变量，因此接下来即可通过该beanName实例变量来访问Bean的配置id。-->
    <bean id="chinese" class="org.crazyit.app.service.Chinese"/>
</beans>

package lee;

import org.springframework.context.*;
import org.springframework.context.support.*;

import org.crazyit.app.service.*;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class SpringTest
{
    public static void main(String[] args)
    {
        // 创建Spring容器，容器会自动预初始化所有Bean实例
        ApplicationContext ctx =
            new ClassPathXmlApplicationContext("beans.xml");
        Chinese chin = ctx.getBean("chinese" , Chinese.class);
        chin.info();
    }
}

package org.crazyit.app.service;

import org.springframework.beans.factory.BeanNameAware;

/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class Chinese implements BeanNameAware
{
    // 保存部署该Bean时指定的id属性
    private String beanName;
    public void setBeanName(String name)
    {
        this.beanName = name;
    }
    public void info()
    {
        System.out.println("Chinese实现类"
            + ", 部署该Bean时指定的id为" + beanName);
    }
}