技術標籤：多執行緒java多執行緒

package 多執行緒技能1;

/**
 * 使用“return”語句停止執行緒的缺點與解決方案
 */

/**
 * 測試
 */
class MyThreadT1118 extends Thread{
    @Override
    public void run() {
        while(true){
            if(this.isInterrupted()){
                System.out.println("停止了！");
                return;
            }
 

            System.out.println("timer="+ System.currentTimeMillis());
        }
    }
}
/**
 * 測試類2
 */
class MyThread1T1118 extends Thread{
    @Override
    public void run() {
        //insert操作
        if(interrupted()){
            System.out.println("寫入long info");
            return
 
;
        }
        //update操作
        if(interrupted()){
            System.out.println("寫入log info");
            return;
        }
        //delete 操作
        if(interrupted()){
            System.out.println("寫入log info");
            return;
        }
        //select操作
        if
 
(interrupted()){
            System.out.println("寫入log info");
            return;
        }
        System.out.println("for for for for for ");
    }
}
/**
 * 測試類
 */
class MyThread2T1118 extends Thread{
    @Override
    public void run() {
        try {
            //insert 操作
            if(interrupted()){
                throw new InterruptedException();
            }
            //update操作
            if(interrupted()){
                throw new InterruptedException();
            }
            //delete操作
            if(interrupted()){
                throw new InterruptedException();
            }
            //select操作
            if(interrupted()){
                throw new InterruptedException();
            }
            System.out.println("for for for for for ");
        } catch (InterruptedException e) {
            System.out.println("寫入log info");
            e.printStackTrace();
        }
    }
}
/**
 * 執行類
 */
class RunT1118{
    public RunT1118() throws InterruptedException {
        MyThreadT1118 myThreadT1118=new MyThreadT1118();
        myThreadT1118.start();
        Thread.sleep(2000);
        myThreadT1118.interrupt();
    }
}

/**
 * 執行類2
 */
class Run2T1118{
    public Run2T1118() throws InterruptedException {
        MyThread1T1118 myThread1T1118=new MyThread1T1118();
        MyThread2T1118 myThread2T1118=new MyThread2T1118();
        myThread1T1118.start();
        Thread.sleep(1000);
        myThread1T1118.interrupt();
        myThread2T1118.start();
        Thread.sleep(1000);
        myThread2T1118.interrupt();

    }
}
public class T1118 {
    public static void main(String[] args) throws InterruptedException {
        /**
         * 雖然使用“return"比”拋異常“法在程式碼結構上可以更加方便實現執行緒的停止，不過
         * 還是建議使用“拋異常”法，因為在catch塊中可以對拋異常的資訊進行統一處理
         */
        //RunT1118 runT1118=new RunT1118();
        System.out.println("---------------------");
        Run2T1118 run2T1118=new Run2T1118();
    }
}