參考部落格：https://blog.csdn.net/z55887/article/details/81073450

@RestController
public class Test {

    @Autowired
    ApplicationContext context;

    private static final Logger log = LoggerFactory.getLogger(Test.class);

    @GetMapping("/1")
    public String myProperties1() {
      //為了讓非同步註解生效，重新獲取bean
        Test test = context.getBean(Test.class);
        test.printOut();
        System.out.println(222222222);
       return "Hello World!!!!!!!!!!!!!!";
    }
    //在同一個類中，一個方法呼叫另外一個有註解（比如@Async，@Transational）的方法，註解失效
    @Async
    void printOut() {
        log.info("------------------------");
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(11111111);
    }
}