java线程池

package Thread;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;public class TestExecutorService {/** * @param args * 使用ExecutorService实现线程池，详细要求如下：1） 线程池要执行的任务为每隔一秒输出一次当前线程的名字，总计输出10次。2） 创建一个线程池，该线程池中只有两个空线程。3） 使线程池执行5次步骤一的任务。 */public static void main(String[] args) {// TODO Auto-generated method stubExecutorService threadPool = Executors.newFixedThreadPool(2);for(int i=0; i<5; i++){Handler handler = new Handler();threadPool.execute(handler);}}}class Handler implements Runnable{public void run(){String name = Thread.currentThread().getName();System.out.println("执行当前任务的线程为：" + name);for(int i=0; i<10; i++){System.out.println(name + ":" + i);try{Thread.sleep(1000);}catch(InterruptedException e){e.printStackTrace();}}System.out.println(name+":任务完毕");}}

程序执行结果：

1. 执行当前任务的线程为:pool-1-thread-1
2. 执行当前任务的线程为:pool-1-thread-2
3. pool-1-thread-2:0
4. pool-1-thread-1:0
5. pool-1-thread-1:1
6. pool-1-thread-2:1
7. pool-1-thread-1:2
8. pool-1-thread-2:2
9. pool-1-thread-2:3
10. pool-1-thread-1:3
11. pool-1-thread-2:4
12. pool-1-thread-1:4
13. pool-1-thread-1:5
14. pool-1-thread-2:5
15. pool-1-thread-1:6
16. pool-1-thread-2:6
17. pool-1-thread-1:7
18. pool-1-thread-2:7
19. pool-1-thread-2:8
20. pool-1-thread-1:8
21. pool-1-thread-2:9
22. pool-1-thread-1:9
23. pool-1-thread-1:任务完毕
24. 执行当前任务的线程为:pool-1-thread-1
25. pool-1-thread-1:0
26. pool-1-thread-2:任务完毕
27. 执行当前任务的线程为:pool-1-thread-2
28. pool-1-thread-2:0
29. pool-1-thread-1:1
30. pool-1-thread-2:1
31. pool-1-thread-1:2
32. pool-1-thread-2:2
33. pool-1-thread-1:3
34. pool-1-thread-2:3
35. pool-1-thread-1:4
36. pool-1-thread-2:4
37. pool-1-thread-1:5
38. pool-1-thread-2:5
39. pool-1-thread-1:6
40. pool-1-thread-2:6
41. pool-1-thread-1:7
42. pool-1-thread-2:7
43. pool-1-thread-1:8
44. pool-1-thread-2:8
45. pool-1-thread-1:9
46. pool-1-thread-2:9
47. pool-1-thread-1:任务完毕
48. 执行当前任务的线程为:pool-1-thread-1
49. pool-1-thread-1:0
50. pool-1-thread-2:任务完毕
51. pool-1-thread-1:1
52. pool-1-thread-1:2
53. pool-1-thread-1:3
54. pool-1-thread-1:4
55. pool-1-thread-1:5
56. pool-1-thread-1:6
57. pool-1-thread-1:7
58. pool-1-thread-1:8
59. pool-1-thread-1:9
60. pool-1-thread-1:任务完毕