多线程-Lock锁lockInterruptibly()

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最新推荐文章于 2025-06-13 16:03:30 发布

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分类专栏：多线程 java 文章标签： java 多线程

本文链接：https://blog.youkuaiyun.com/b422761838/article/details/106021956

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本文展示了一个使用Java ReentrantLock的LockInterruptibly方法的测试示例，通过两个线程竞争锁并允许线程在等待锁时被中断，演示了锁的中断行为。

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public class LockInterruptiblyTest {
    private Lock lock = new ReentrantLock();
    public static void main(String[] args)  {
        LockInterruptiblyTest test = new LockInterruptiblyTest();
        MyThread thread1 = new MyThread(test);
        MyThread thread2 = new MyThread(test);
        thread1.start();
        thread2.start();

        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        //thread2.interrupt();
    }

    public void insert(Thread thread) throws InterruptedException {
        lock.lockInterruptibly();
        try {
            System.out.println(thread.getName()+"得到了锁");
            long startTime = System.currentTimeMillis();
            /*for(    ;     ;) {
                if(System.currentTimeMillis() - startTime >= Integer.MAX_VALUE)
                    break;
                //插入数据
            }*/
        }
        finally {
            System.out.println(Thread.currentThread().getName()+"执行finally");
            lock.unlock();
            System.out.println(thread.getName()+"释放了锁");
        }
    }
}

class MyThread extends Thread {
    private LockInterruptiblyTest test = null;
    public MyThread(LockInterruptiblyTest test) {
        this.test = test;
    }
    @Override
    public void run() {
        try {
            test.insert(Thread.currentThread());
        } catch (InterruptedException e) {
            System.out.println(Thread.currentThread().getName()+"被中断");
        }
    }
}