扩展ThreadPoolExecutor

最新推荐文章于 2023-01-12 18:58:48 发布

Hey_WonderfulWorld

最新推荐文章于 2023-01-12 18:58:48 发布

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CC 4.0 BY-SA版权

分类专栏：线程文章标签：线程池

本文链接：https://blog.youkuaiyun.com/Hey_WonderfulWorld/article/details/72454872

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本文介绍了一种自定义线程池的实现方法，通过继承 ThreadPoolExecutor 类并重写 beforeExecute 和 afterExecute 方法来实现对任务执行前后的自定义操作。

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public class MyThreadPoolExecutor extends ThreadPoolExecutor {

    public MyThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
            BlockingQueue<Runnable> workQueue) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * java.util.concurrent.ThreadPoolExecutor#beforeExecute(java.lang.Thread,
     * java.lang.Runnable)
     */
    @Override
    protected void beforeExecute(Thread t, Runnable r) {
        System.out.println("beforeExecute ThreadName:" + ((Thread) r).getName() + " TID:" + t.getId());
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * java.util.concurrent.ThreadPoolExecutor#afterExecute(java.lang.Runnable,
     * java.lang.Throwable)
     */
    @Override
    protected void afterExecute(Runnable r, Throwable t) {
        System.out.println("afterExecute TID:" + Thread.currentThread().getId());
        System.out.println("afterExecute PoolSize:" + this.getPoolSize());
    }

}