方法上使用@Async注解

@Component
public class Tasks{
    //定義一個(gè)隨機(jī)對(duì)象.
    public static Random random = new Random();
    @Async
    public void taskOne() throws InterruptedException{
        System.out.println("開始做任務(wù)一");
        long start = System.currentTimeMillis();
        Thread.sleep(random.nextInt(10000));
        long end = System.currentTimeMillis();
        System.out.println("完成任務(wù)一，耗時(shí)：" + (end - start) + "毫秒");
    }
    
    @Async
    public void taskTwo() throws InterruptedException{
        System.out.println("開始做任務(wù)二");
        long start = System.currentTimeMillis();
        Thread.sleep(random.nextInt(10000));
        long end = System.currentTimeMillis();
        System.out.println("完成任務(wù)二，耗時(shí)：" + (end - start) + "毫秒");
    }
    
    @Async
    public void taskThree() throws InterruptedException{
        System.out.println("開始做任務(wù)三");
        long start = System.currentTimeMillis();
        Thread.sleep(random.nextInt(10000));
        long end = System.currentTimeMillis();
        System.out.println("完成任務(wù)三，耗時(shí)：" + (end - start) + "毫秒");
    }
}

啟動(dòng)上使用注解@EnableAsync