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）