一分钟后立即停止线程 [英] Stop Thread right after one Minute

问题描述

我有一个JButton来调用我的线程。但是我真正想要做的就是在一分钟后停止线程！
我的actionListener方法是：

  private void jButton1ActionPerformed（java.awt.event.ActionEvent evt）{
新的Frame2（）。setVisible（true）; 
 Thread t = new Thread（new Frame2（））; 
 
 t.start（）; 
} 
  

我的线程只运行一分钟，如下所示：

  public void run（）{
 int i; （！i = 0; i <= 100; i ++）{
 
 if（i == 100）
 while（！Thread.currentThread（）。isInterrupted（））{
 ）{
 Thread.currentThread（）。interrupt（）; 
 
 try {
 Thread.currentThread（）。sleep（600）; 
} catch（InterruptedException ex）{
 System.out.print（THREAD CLOSED）; 
 return; 
} 
 
} 
 System.out.print（做BLA BLA）; 
 
 
 
 
 
 
 $ b $问题：
我在一分钟后成功停止了线程，但是我无法做任何想要的事情。我只是想知道，我怎么才能达到这个目的，只需要一分钟就可以运行线程，而在线程内部，我想要做的事情！但是，如何？我错了这个方法吗？如果是，那么应该采取什么正确的做法？
 
解决方案
最简单的方法就是做一些像如下所示：
 
 
  public void run（）{
 long startTime = System.currentTimeMillis（）; 
 while（System.currentTimeMillis（）< startTime + 60000）{
 //做一些有用的事情
} 
} 
  pre> 
 
 
做一些有用的事情应该是一个快速操作，并且您的线程总是会持续略长于1分钟（1分钟+做些有用的事情 ）。
 
 
注意你原来的代码：从线程本身停止一个线程，不需要中断：你只需要从 run（）方法。
 
I have a JButton to invoke my thread. But what I actually want to do is to stop the thread just after the one minute!
My actionListener Method is:
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    new Frame2().setVisible(true);
    Thread t=new Thread(new Frame2());

    t.start();
    }    
My thread to run for only one minute is as follow:
    public void run(){
    int i;
    while(!Thread.currentThread().isInterrupted()){
        for(i=0;i<=100;i++){

            if(i==100){
            Thread.currentThread().interrupt();
             }
        try {
            Thread.currentThread().sleep(600);
        } catch (InterruptedException ex) {
            System.out.print("THREAD CLOSED");
           return;
        }

    }
        System.out.print("DOING THINGS BLA BLA");
    }

}    




The Problem:
I have stopped the thread after one minute successfully, but I was not able to do anything desired in it. I just want to know that how can I achieve this in order to run the thread for only one minute and inside the thread I want to do my things! But how? Am I wrong with this approach? If, yes then what should be the right approach?
解决方案
The simplest way to do what you want is to have something like the following:
public void run() {
    long startTime = System.currentTimeMillis();
    while (System.currentTimeMillis() < startTime + 60000) {
        // do something useful
    }
}
"do something useful" should be a fast operation, and your thread will always last slightly longer than 1 minute (1 minute + the time of "do something useful").

Note about your original code: to stop a thread from the thread itself, no need for an interrupt: you just need to return from the run() method.

                        
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