java 關閉線程

標籤：lock   stack   自動   ack   rri   read   class   rup   code   

public class ThreadService {    private Thread executeThread;    private boolean finished = false;    public void execute(Runnable task) {        executeThread = new Thread() {            @Override            public void run() {                Thread runner = new Thread(task);                runner.setDaemon(true);                runner.start();                try {                    runner.join();                    finished = true;                } catch (InterruptedException e) {                    System.out.println("intrupted   finished");                    //  e.printStackTrace();                }            }        };        executeThread.start();    }    public void shutdown(long mills) {        long currentTime = System.currentTimeMillis();        while (!finished) {            long cost=(System.currentTimeMillis() - currentTime);            System.out.println(cost);            if (cost>= mills) {                System.out.println("timeout!!!");                executeThread.interrupt();                break;            }            try {                executeThread.sleep(1);            } catch (InterruptedException e) {                System.out.println("execute is intrupeted");                break;            }        }        finished=false;    }}

通過關閉主線程的方式讓守護線程 自動關閉

子線程再運行結束時通過join 通知主線程  說自己執行完了，通過結束中斷主線程來讓子線程自動結束，解決了 線程block   中無法結束的問題

public class ThreadCloseForce {    public static void main(String[] args) {        ThreadService service=new ThreadService();        long start=System.currentTimeMillis();        service.execute(()->{            //read data            try {                Thread.sleep(2000);            } catch (InterruptedException e) {                e.printStackTrace();            }        });        service.shutdown(10000);        long end=System.currentTimeMillis();        System.out.println(end-start);    }}

 

java 關閉線程