SpringBoot项目启动时执行指定的方法

@Component
public class PostConstructTest {
    @PostConstruct
    public void postConstruct() {
		System.out.println("启动时自动执行  @PostConstruct 注解方法");
    }
}

@Service
public class TestService {
 
    @Async("testAsync")  //指定线程池
    public void test() {
        System.out.println("------------------------异步方法开始 " + Thread.currentThread().getName());
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("----------------异步方法执行完了" + Thread.currentThread().getName());
    }
}

@Component
public class PostConstructTest {

	@Autowired
    private TestService testService;
	
    @PostConstruct
    public void postConstruct() {
		System.out.println("启动时自动执行  @PostConstruct 注解方法");
		testService.test();
    }
}

@Component
public class CommandLineRunnerImpl implements CommandLineRunner {

    @Override
    public void run(String... args) throws Exception {
		System.out.println("启动时自动执行 CommandLineRunner 的 run 方法");
    }
}