Springboot #3 활용 - springApplication

1. @Profile

• DevConfiguration 생성

@Profile("dev")
@Configuration
public class DevConfiguration {

    @Bean
    public String hello() {
        return "hello dev";
    }
}

• ProdConfiguration 생성

@Profile("prod")
@Configuration
public class ProdConfiguration {
    @Bean
    public String hello() {
        return "hello prod";
    }
}

• application.properties 설정

spring.profiles.active=prod

• 활용 코드

@Component
public class SampleRunner implements ApplicationRunner {

    @Autowired
    private String hello;

    @Autowired
    SampleProperties sampleProperties;

    @Override
    public void run(ApplicationArguments args) throws Exception {
        System.out.println(" =================== ");
        System.out.println( sampleProperties.getName() );
        System.out.println( hello );
        System.out.println(" ===================");
    }
}

• 결과

 
jacob
hello prod

2. application.properties 구분

• resources 하위에 application.properties 파일을 구분하여 만듬

resources
+- application.properties
+- application-prod.properties
+- application-dev.properties

• Promgram arguments에 profile 설정

--spring.profiles.active=prod

• 출력 결과는 application-prod.properties에 설정된 값 출력

3. application-{}.properties 포함하기

• application-devdb.properties 작성

sample.name=dbdbdb

• application-dev.properties 파일에 아래 설정

spring.profiles.include=devdb

• 출력 결과

dbdbdb
hello dev

• application-devdb.properties 값으로 override 됨