JAVA并发，线程工厂及自定义线程池

package com.xt.thinks21_2;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * 后台线程工厂测试
 * 
 * @step 1
 * @author Administrator
 *
 */
class DaemonThreadFactory implements ThreadFactory {

    @Override
    public Thread newThread(Runnable r) {
        // TODO Auto-generated method stub
        Thread t = new Thread(r);
        t.setDaemon(true);
        return t;
    }

}

/**
 * 自定义线程池执行器
 * 
 * @step 5
 * @author Administrator
 *
 */
class DaemonThreadPoolExecutor extends ThreadPoolExecutor {

    public DaemonThreadPoolExecutor() {
        super(0, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS,
                new SynchronousQueue<Runnable>(), new DaemonThreadFactory());
        // TODO Auto-generated constructor stub
    }

}

/**
 * 后台线程测试
 * 
 * @step 2
 * @author Administrator
 *
 */
public class DaemonFromFactory implements Runnable {
    // @step 3
    @Override
    public void run() {
        // TODO Auto-generated method stub
        while (true) {
            try {
                TimeUnit.MILLISECONDS.sleep(100);
                System.out.println(Thread.currentThread() + ":" + this);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        // @step 4
        ExecutorService es = Executors
                .newCachedThreadPool(new DaemonThreadFactory());
        for (int i = 0; i < 10; i++) {
            es.execute(new DaemonFromFactory());// 执行后台线程
        }
        es.shutdown();
        // @step 6
        // 自定义的线程池执行器
        DaemonThreadPoolExecutor dte = new DaemonThreadPoolExecutor();
        for (int i = 0; i < 10; i++) {
            dte.execute(new DaemonFromFactory());// 执行后台线程
        }
        dte.shutdown();
        System.out.println("ALL DEAMON THREAD IS START!");
        try {
            TimeUnit.MILLISECONDS.sleep(125);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

通过编写定制的ThreadFactory可以定制游Executor创建的线程的属性（后台、优先级、名称）