关于SpringBoot使用@Async的总结

@SpringBootApplication  
@EnableAsync  
public class Application{    
    public static void main(String[] args) {  
        SpringApplication.run(Application.class, args);  
    }  
}

@Component
public class AsyncTask {
    @Async
    public void task1() throws InterruptedException{
        long currentTimeMillis = System.currentTimeMillis();
        Thread.sleep(1000);
        long currentTimeMillis1 = System.currentTimeMillis();
        System.out.println("task1任务耗时:"+(currentTimeMillis1-currentTimeMillis)+"ms");
    }
    @Async
    public void task2() throws InterruptedException{
        long currentTimeMillis = System.currentTimeMillis();
        Thread.sleep(2000);
        long currentTimeMillis1 = System.currentTimeMillis();
        System.out.println("task2任务耗时:"+(currentTimeMillis1-currentTimeMillis)+"ms");
    }
    @Async
    public void task3() throws InterruptedException{
        long currentTimeMillis = System.currentTimeMillis();
        Thread.sleep(3000);
        long currentTimeMillis1 = System.currentTimeMillis();
        System.out.println("task3任务耗时:"+(currentTimeMillis1-currentTimeMillis)+"ms");
    }
}

@RestController
@RequestMapping("/test")
public class TestController {
    @Autowired
    private AsyncTask asyncTask;
    @RequestMapping("/async")
    public String doTask() throws InterruptedException{
        long currentTimeMillis = System.currentTimeMillis();
        asyncTask.task1();
        asyncTask.task2();
        asyncTask.task3();
        long currentTimeMillis1 = System.currentTimeMillis();
        return "task任务总耗时:"+(currentTimeMillis1-currentTimeMillis)+"ms";
    }
}