@SpringBootApplication

@EnableAsync //开启异步调用

public class StartApplication {

@RestController

public class AsyncController {

    private final static Logger logger=LoggerFactory.getLogger(WebLogAspect.class);

    @Autowired

    private AsyncService asyncService;

    @RequestMapping("/testAsync")

    public String testAsync() {

        logger.info("1");

        String result=asyncService.asynTest();

        logger.info("4");

        return result;

    }

}

@Service

public class AsyncService {

    private final static Logger logger=LoggerFactory.getLogger(WebLogAspect.class);

    @Async  //相当于重新开辟单独线程执行该方法

    public String asynTest() {

        logger.info("2");

        try {

            Thread.sleep(5000);

        }catch(Exception e) {

        }

        logger.info("3");

        return "success";

    }

}