【Spring】 (5）根据机器环境不同运行不同代码

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package com.example.demo_2_4;/** * Created by WangBin on 2017/4/13. * */public class DemoBean {    private String content;    public DemoBean(String content) {        this.content = content;    }    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }}

package com.example.demo_2_4;import org.springframework.context.annotation.AnnotationConfigApplicationContext;/** * Created by WangBin on 2017/4/13. * */public class Main {    public static void main(String[] args) {        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();        System.err.println(""+context.getEnvironment());        context.getEnvironment().setActiveProfiles("dev");//先将活动的Profile设置1下        context.register(ProfileConfig.class);//设置 config        context.refresh();//刷新容器        DemoBean demoBean = context.getBean(DemoBean.class);        System.err.println(demoBean.getContent());        context.close();    }}

package com.example.demo_2_4;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.Profile;/** * Created by WangBin on 2017/4/13. * */@Configurationpublic class ProfileConfig {    @Bean    @Profile("dev")//Profile 为 dev时 实例化 devDemoBean    public DemoBean devDemoBean(){        return new DemoBean("dev实例化的");    }    @Bean    @Profile("prod")//Profile 为 prod时  实例化 proDemoBean    public DemoBean proDemoBean(){        return new DemoBean("pro实例化的");    }}

package com.example.demo_2_4;import org.springframework.web.WebApplicationInitializer;import javax.servlet.ServletContext;import javax.servlet.ServletException;/** * Created by WangBin on 2017/4/13. * */public class WebInit implements WebApplicationInitializer {    @Override    public void onStartup(ServletContext servletContext) throws ServletException {        servletContext.setInitParameter("spring.profiles.default","dev");    }}

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