ThreadPoolExecutor线程池 

 1 package unit;
 2 
 3 import java.util.concurrent.ArrayBlockingQueue;
 4 import java.util.concurrent.ThreadPoolExecutor;
 5 import java.util.concurrent.TimeUnit;
 6 
 7 public class ThreadPoolExecutor线程池 {
 8     public static void main(String[] args) {
 9         ThreadPoolExecutor executorPool = new ThreadPoolExecutor(5, 15, 2000, TimeUnit.MINUTES, new ArrayBlockingQueue<Runnable>(5));
10         for(int i=0; i<15; i++) {
11             executorPool.execute(new MyTask(i));
12             System.out.println("线程池中线程数目："+executorPool.getPoolSize()+"，队列中等待执行的任务数目："+
13             executorPool.getQueue().size()+"，已执行过的任务数目："+executorPool.getCompletedTaskCount());
14         }
15         System.out.println("=========================");
16         executorPool.shutdown();
17         executorPool.setKeepAliveTime(2, TimeUnit.MINUTES);
18         
19     }
20 }
21 
22 class MyTask implements Runnable{
23     int theTask = 0;
24     public MyTask() {
25         
26     }
27     public MyTask(int i) {
28         theTask = i;
29         run();
30     }
31     @Override
32     public void run() {
33         System.out.println("当前正在执行第： "+ theTask + " 个线程");
34         /* try {
35             Thread.sleep(1000);
36         } catch (InterruptedException e) {
37             e.printStackTrace();
38         }*/
39         System.out.println("task "+theTask+"执行完毕");
40     }
41 }

 

posted @ 2017-12-13 17:51  林**  阅读(343)  评论(0)    收藏  举报