LockSupport-park和unpark编码实战

叁歲伎倆 2024-02-21 09:10 12阅读 0赞

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package com.nanjing.gulimall.zhouyimo.test;
    
    import java.util.concurrent.TimeUnit;
    import java.util.concurrent.locks.LockSupport;
    
    /**
     * @author zhou
     * @version 1.0
     * @date 2023/10/16 9:11 下午
     */
    public class LockSupportDemo {
        public static void main(String[] args) {
            /**
             * t1	 -----------come in
             * t2	 ----------发出通知
             * t1	 ----------被唤醒
             */
            Thread t1 = new Thread(() -> {
                System.out.println(Thread.currentThread().getName() + "\t -----------come in");
                LockSupport.park();
                System.out.println(Thread.currentThread().getName() + "\t ----------被唤醒");
            }, "t1");
            t1.start();
    
            try {
                TimeUnit.SECONDS.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
    
            new Thread(() -> {
                LockSupport.unpark(t1);
                System.out.println(Thread.currentThread().getName() + "\t ----------发出通知");
            }, "t2").start();
    
        }
    }
    
    
    t1	 -----------come in
    t2	 ----------发出通知
    t1	 ----------被唤醒

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[726cbd164796444cb8b99f64e0b035ac.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/21/554af2589be14f5b99e3afcb684bb9fb.png
[ca5d189c70684be0bd14bb2cd68a555e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/21/9a95bbe032bd4afcaaa7981a9fcbfa9f.png
[7c97932c1b51471fb2c14b53c5a33a3f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/21/19e86669dab64baea66268661792681e.png