Springboot条件装配之Profile学习笔记

1. 编写业务接口

   public interface CalculateService {
         
         
       Integer sum(Integer ... values) ;
   }
   

2. 编写业务实现类并添加@Profile注解

   @Service
   @Profile("Java7")
   public class Java7CalculateService implements CalculateService {
         
         
       @Override
       public Integer sum(Integer... values) {
         
         
           log.info("===> Java7 for 循环实现");
           Integer result = 0 ;
           for (Integer value : values){
         
         
               result += value ;
           }
           return result;
       }
   }
   @Service
   @Profile("Java8")
   public class Java8CalculateService implements CalculateService {
         
         
       @Override
       public Integer sum(Integer... values) {
         
         
           log.info("===> Java8 Lambda 表达式实现");
           Integer result = Stream.of(values).reduce(0 , Integer::sum) ;
           return result;
       }
   }
   

3. 启动类编写并配置profile

   @Slf4j
   @SpringBootApplication(scanBasePackages = "com.yicj.hello.service")
   public class CalculateProfileApplication {
         
         
       public static void main(String[] args) {
         
         
           ConfigurableApplicationContext ctx = new SpringApplicationBuilder(CalculateProfileApplication.class)
                   .web(WebApplicationType.NONE)
                   .profiles("Java8")
                   .run(args);
           CalculateService bean = ctx.getBean(CalculateService.class);
           log.info("=====> bean : {}", bean.sum(1,2,3,4,5,6,7,8,9,10));
           ctx.close();
       }
   }