两阶段终止模式--volatile（让一个线程优雅的终止）

代码：

package demo1;

public class StopXiancheng {
    public static void main(String[] args) throws InterruptedException {
        TwoPhaseTermination tpt=new TwoPhaseTermination();
        tpt.start();

        Thread.sleep(3500);
        System.out.println("停止监控");
        tpt.stop();
    }

}
class TwoPhaseTermination{
    //监控线程
    private Thread monitorThread;
    private volatile boolean stop=false;

    //启动监控线程
    public void start(){
        monitorThread=new Thread(()->{
           while (true){
               Thread current=Thread.currentThread();
               //是否被打断
               if(stop){
                   System.out.println("料理后事");
                   break;
               }
               try {
                   Thread.sleep(1000);
                   System.out.println("执行监控");
               } catch (InterruptedException e) {
                   e.printStackTrace();
               }
           }
        },"monitor");
        monitorThread.start();
    }
    public void stop(){
        stop=true;
        monitorThread.interrupt();
    }
}