自定义线程池名称

最新推荐文章于 2024-07-24 17:26:12 发布

原创最新推荐文章于 2024-07-24 17:26:12 发布 · 424 阅读

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本文介绍了一种自定义线程池的实现方法，通过NamedThreadFactory类创建带有前缀的线程，详细展示了线程组、线程名及线程属性的设置过程。同时，配置了一个核心线程数为5的线程池，当核心线程满时，任务将进入队列等待；队列满时，创建新线程，直至达到最大线程数。

public class NamedThreadFactory implements ThreadFactory{

        private final AtomicInteger poolNumber = new AtomicInteger(1);

        private final ThreadGroup threadGroup;

        private final AtomicInteger threadNumber = new AtomicInteger(1);

        public  final String namePrefix;

        NamedThreadFactory(String name){
            SecurityManager s = System.getSecurityManager();
            threadGroup = (s != null) ? s.getThreadGroup() :
                    Thread.currentThread().getThreadGroup();
            if (null==name || "".equals(name.trim())){
                name = "pool";
            }
            namePrefix = name +"-"+
                    poolNumber.getAndIncrement() +
                    "-thread-";
        }

        @Override
        public Thread newThread(Runnable r) {
            Thread t = new Thread(threadGroup, r,
                    namePrefix + threadNumber.getAndIncrement(),
                    0);
            if (t.isDaemon())
                t.setDaemon(false);
            if (t.getPriority() != Thread.NORM_PRIORITY)
                t.setPriority(Thread.NORM_PRIORITY);
            return t;
        }
    }

/核心线程满了，则进入队列，队列满了，则创建新线程，当线程数达到最大线程数，则进入拒绝策略

static ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(5,5,1,
            TimeUnit.MINUTES,new LinkedBlockingDeque<>(),new NamedThreadFactory("测试"));