JAVA 核心笔记 || [xxx] Spring 之 JavaConfig 配置多个Bean

配置多 Bean

用法

App.java

import com.mj.bean.*;
import com.mj.bean.annotation.BeanConfig;
import com.mj.bean.annotation.BeanPerson;
import com.mj.bean.annotation.IBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

import java.io.FileNotFoundException;

public class App {



    public static void main(String args[]) throws FileNotFoundException{
        /*
        //ClassPathXmlApplicationContext
        ApplicationContext context = new ClassPathXmlApplicationContext("com/mj/xml/Bean.xml");
        BeanSay sa = (BeanSay) context.getBean("BeanSay");
        sa.setMsg("__Spring");
        sa.talk();

        //FileSystemXmlApplicationContext
        ApplicationContext fileContext = new FileSystemXmlApplicationContext("/src/com/mj/xml/Bean.xml");
        BeanSay sa1 = (BeanSay) fileContext.getBean("BeanSay");
        sa1.setMsg("=Spring====");
        sa1.talk();

        ApplicationContext animalContext = new ClassPathXmlApplicationContext("com/mj/xml/Bean.xml");
        BeanAnimal ani =  (BeanAnimal) animalContext.getBean("Animal");
        ani.setAnimalName("dog");
        ani.showAnimal();

        BeanAnimal animal =  (BeanAnimal) animalContext.getBean("Animal");
        animal.setAnimalName("pig");
        animal.showAnimal();

        // init method   destroy method
        BeanLife life = (BeanLife) context.getBean("BeanLife");
        life.showName();

        //BeanDog 继承  BeanAnimal
        BeanDog dog = (BeanDog)context.getBean("BeanDog");
        dog.showAnimal();
        //加载多配置文件
        BeanUser user = (BeanUser)context.getBean("BeanUser");
        user.showUser();
        */

        ApplicationContext annotationCtx = new AnnotationConfigApplicationContext(BeanConfig.class);
        IBean beanPerson = (IBean) annotationCtx.getBean("beanPerson");
        beanPerson.show();

        IBean beanStu = (IBean)annotationCtx.getBean("beanStu");
        beanStu.show();

        IBean beanTch = (IBean)annotationCtx.getBean("beanTch");
        beanTch.show();

    }
}

BeanConfig.java

package com.mj.bean.annotation;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class BeanConfig {

    @Bean(name="beanPerson" )
    public IBean beanPerson(){
        return new BeanPerson();
    }

    @Bean(name = "beanStu")
    public IBean beanStu(){
        return new BeanStu();
    }

    @Bean(name = "beanTch")
    public IBean beanTch(){
        return new BeanTch();
    }
}

IBean.java

package com.mj.bean.annotation;

public interface IBean {

    public  void show();
}

BeanPerson.java

package com.mj.bean.annotation;

public class BeanPerson implements IBean {
    private String cName = "BeanPerson";
    @Override
    public void show(){
        System.out.println( cName );
    }

    public void setcName(String cName) {
        this.cName = cName;
    }

}

BeanStu.java

package com.mj.bean.annotation;

public class BeanStu implements IBean {
    private String cName = "BeanStu";
    @Override
    public  void show(){
        System.out.println( cName);
    }

    public void setcName(String cName) {
        this.cName = cName;
    }
}

BeanTch.java

package com.mj.bean.annotation;

public class BeanTch implements  IBean {
    private String cName = "BeanTch";

    @Override
    public  void show(){
        System.out.println(cName);
    }

    public void setcName(String cName) {
        this.cName = cName;
    }
}

运行

/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/bin/java "-javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=51288:/Applications/IntelliJ IDEA.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/tools.jar:/Users/mac/d/project/java/mspr/out/production/mspr:/Users/mac/d/project/java/mspr/lib/spring-instrument-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-instrument-tomcat-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-aspects-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-context-support-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-aop-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-jms-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-expression-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-jdbc-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-oxm-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/commons-logging-1.2.jar:/Users/mac/d/project/java/mspr/lib/spring-messaging-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/aopalliance-1.0.jar:/Users/mac/d/project/java/mspr/lib/spring-tx-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-beans-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-orm-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-context-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-core-4.3.18.RELEASE.jar:/Users/mac/d/project/java/mspr/lib/spring-test-4.3.18.RELEASE.jar App
objc[828]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/bin/java (0x10f6814c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f70d4e0). One of the two will be used. Which one is undefined.
Dec 05, 2018 10:36:12 AM org.springframework.context.annotation.AnnotationConfigApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@5ce65a89: startup date [Wed Dec 05 10:36:12 CST 2018]; root of context hierarchy
BeanPerson
BeanStu
BeanTch

Process finished with exit code 0
最后编辑于 ：
©著作权归作者所有,转载或内容合作请联系作者
  • 人面猴
    序言：七十年代末，一起剥皮案震惊了整个滨河市，随后出现的几起案子，更是在滨河造成了极大的恐慌，老刑警刘岩，带你破解...
    沈念sama阅读 159,015评论 4赞 362
  • 死咒
    序言：滨河连续发生了三起死亡事件，死亡现场离奇诡异，居然都是意外死亡，警方通过查阅死者的电脑和手机，发现死者居然都...
    沈念sama阅读 67,262评论 1赞 292
  • 救了他两次的神仙让他今天三更去死
    文/潘晓璐 我一进店门，熙熙楼的掌柜王于贵愁眉苦脸地迎上来，“玉大人，你说我怎么就摊上这事。” “怎么了？”我有些...
    开封第一讲书人阅读 108,727评论 0赞 243
  • 道士缉凶录：失踪的卖姜人
    文/不坏的土叔 我叫张陵，是天一观的道长。 经常有香客问我，道长，这世上最难降的妖魔是什么？ 我笑而不...
    开封第一讲书人阅读 43,986评论 0赞 205
  • 港岛之恋（遗憾婚礼）
    正文 为了忘掉前任，我火速办了婚礼，结果婚礼上，老公的妹妹穿的比我还像新娘。我一直安慰自己，他们只是感情好，可当我...
    茶点故事阅读 52,363评论 3赞 287
  • 恶毒庶女顶嫁案：这布局不是一般人想出来的
    文/花漫 我一把揭开白布。 她就那样静静地躺着，像睡着了一般。 火红的嫁衣衬着肌肤如雪。 梳的纹丝不乱的头发上，一...
    开封第一讲书人阅读 40,610评论 1赞 219
  • 城市分裂传说
    那天，我揣着相机与录音，去河边找鬼。 笑死，一个胖子当着我的面吹牛，可吹牛的内容都是我干的。 我是一名探鬼主播，决...
    沈念sama阅读 31,871评论 2赞 312
  • 双鸳鸯连环套：你想象不到人心有多黑
    文/苍兰香墨 我猛地睁开眼，长吁一口气：“原来是场噩梦啊……” “哼！你这毒妇竟也来了？” 一声冷哼从身侧响起，我...
    开封第一讲书人阅读 30,582评论 0赞 198
  • 万荣杀人案实录
    序言：老挝万荣一对情侣失踪，失踪者是张志新（化名）和其女友刘颖，没想到半个月后，有当地人在树林里发现了一具尸体，经...
    沈念sama阅读 34,297评论 1赞 242
  • 护林员之死
    正文 独居荒郊野岭守林人离奇死亡，尸身上长有42处带血的脓包…… 初始之章·张勋 以下内容为张勋视角 年9月15日...
    茶点故事阅读 30,551评论 2赞 246
  • 白月光启示录
    正文 我和宋清朗相恋三年，在试婚纱的时候发现自己被绿了。 大学时的朋友给我发了我未婚夫和他白月光在一起吃饭的照片。...
    茶点故事阅读 32,053评论 1赞 260
  • 活死人
    序言：一个原本活蹦乱跳的男人离奇死亡，死状恐怖，灵堂内的尸体忽然破棺而出，到底是诈尸还是另有隐情，我是刑警宁泽，带...
    沈念sama阅读 28,385评论 2赞 253
  • 日本核电站爆炸内幕
    正文 年R本政府宣布，位于F岛的核电站，受9级特大地震影响，放射性物质发生泄漏。R本人自食恶果不足惜，却给世界环境...
    茶点故事阅读 33,035评论 3赞 236
  • 男人毒药：我在死后第九天来索命
    文/蒙蒙 一、第九天 我趴在偏房一处隐蔽的房顶上张望。 院中可真热闹，春花似锦、人声如沸。这庄子的主人今日做“春日...
    开封第一讲书人阅读 26,079评论 0赞 8
  • 一桩弑父案，背后竟有这般阴谋
    文/苍兰香墨 我抬头看了看天上的太阳。三九已至，却和暖如春，着一层夹袄步出监牢的瞬间，已是汗流浃背。 一阵脚步声响...
    开封第一讲书人阅读 26,841评论 0赞 195
  • 情欲美人皮
    我被黑心中介骗来泰国打工， 没想到刚下飞机就差点儿被人妖公主榨干…… 1. 我叫王不留，地道东北人。 一个月前我还...
    沈念sama阅读 35,648评论 2赞 274
  • 代替公主和亲
    正文 我出身青楼，却偏偏与公主长得像，于是被迫代替她去往敌国和亲。 传闻我的和亲对象是个残疾皇子，可洞房花烛夜当晚...
    茶点故事阅读 35,550评论 2赞 270