多线程程序设计学习（11）Two-phapse-Termination pattern

 1 package com.yeepay.sxf.thread10;
 2 /**
 3  * 测试主线程A线程
 4  * @author sxf
 5  *
 6  */
 7 public class Test {
 8     public static void main(String[] args) {
 9         //开启收拾玩具的线程
10         CountAddThread addThread=new CountAddThread();
11         //开启线程
12         new Thread(addThread).start();
13         //让主线程休息5秒
14         try {
15             Thread.sleep(5000);
16         } catch (InterruptedException e) {
17             // TODO Auto-generated catch block
18             e.printStackTrace();
19         }
20         //关闭收拾玩具线程
21         addThread.shutDownRequest();
22         
23     }
24 }

 1 package com.yeepay.sxf.thread10;
 2 
 3 public class CountAddThread extends Thread{
 4     //计数器
 5     private Integer counter=0;
 6     
 7     //当发送出停止线程的请求，该值设置为true
 8     private volatile boolean flag=false;
 9     
10     @Override
11     public void run() {
12         try {
13                 while (!flag) {
14                         doWork();
15                         if(this.interrupted()){
16                             System.out.println("CountAddThread.run(中断)");
17                         }else{
18                             System.out.println("CountAddThread.run(非中断)");
19                         }
20                         System.out.println("CountAddThread.run(sleep after收拾玩具个数：)"+counter);
21                 }
22         } catch (Exception e) {
23             System.out.println("CountAddThread.run(取消sleep后，抛出异常抓住，收拾玩具个数:)"+counter);
24             e.printStackTrace();
25         }finally{
26             shutDownDoWork();
27         }
28         
29         
30     }
31     
32     //具体工作内容
33     public void doWork() throws InterruptedException {
34         counter++;
35         System.out.println("CountAddThread.doWork(收拾玩具第)"+counter+"次数");
36     //    Thread.sleep(10);
37     }
38     
39     //发送终止请求
40     public  void shutDownRequest(){
41         System.out.println("CountAddThread.shutDownRequest(终止线程方法的请求启动)");
42         flag=true;
43         //将线程设置为中断状态
44         interrupt();
45         //判断this线程是否为中断状态
46         if(this.isInterrupted()){
47             System.out.println("CountAddThread.shutDownRequest(线程是中断)");
48         }else{
49             System.out.println("CountAddThread.shutDownRequest(线程为非中断状态)");
50         }
51     
52     }
53     
54     //判断终止请求是否已经发出
55     public boolean isShutDown(){
56         return flag;
57     }
58 
59     public void shutDownDoWork(){
60         System.out.println("CountAddThread.shutDownDoWork(结束请求后counter=>"+counter+")");
61     }
62     
63     
64 }

 1 package com.yeepay.sxf.thread10;
 2 /**
 3  * 抛异常一种实现
 4  * @author sxf
 5  *
 6  */
 7 public class TestException  {
 8     
 9     private Exception exception=null;
10     
11     public static void main(String[] args) {
12         TestException ex=new TestException();
13         try {
14             ex.addtest();
15         } catch (Exception e) {
16             // TODO Auto-generated catch block
17             System.out.println("TestException.main()"+e);
18         }
19     }
20     
21     public void addtest() throws Exception{
22         try {
23             int a=1/1;
24         } catch (Exception e) {
25             exception=e;
26         }
27         System.out.println("异常被抓住，但没抛，也没打印，而是赋值给别的对象，后边再抛");
28         if(exception!=null){
29             throw exception;
30         }
31         System.out.println("抛异常后边不可以写代码，也不会执行");
32     }
33     
34 }