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@Configuration //ÉùÃ÷×¢½âÀà
public class ProfileConfig {@Bean@Profile("dev") //1 
  public DemoBean devDemoBean() {
    return new DemoBean("from development profile");
  }@Bean@Profile("prod") //2public DemoBean prodDemoBean() {
  return new DemoBean("from production profile");
}

public class Main {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
        context.getEnvironment().setActiveProfiles("prod"); //1 »ñÈ¡ÈÝÆ÷×¢Èë»·¾³ÅäÖà £¬prodDemoBean ·½·¨£¬Èç¹ûÉèÖõÄÊÇ¡°Ddev¡± ÔËÐÐDevDemoBean·½·¨ ¡£
        context.register(ProfileConfig.class); //2
        context.refresh(); //3
        DemoBean demoBean = context.getBean(DemoBean.class);
        System.out.println(demoBean.getContent());
        context.close();
    }
}

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• ¨C ÅäÖÃÎļþ spring.profiles.active=dev
• ¨C jvm²ÎÊý ¨CDspring.profiles.active=dev

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