一个人如何停止一个线程没有stop（）方法？ [英] How does one stop a thread without a stop() method?

问题描述

我对Java线程问题。这里是我的情况：

I have question about the Java threads. Here is my scenario:

我有一个线程调用，可以采取当的方法。线程保持本身的方法，直到我得到的结果。如果我发送另一个请求，以同样的方式，方法，现在有两个线程运行（设置在第一未返回的结果尚未）。但我想给优先的最后一个线程，并且不希望得到从previously启动线程的结果。所以，当我没有停止方法，我怎么能摆脱早期线程？

I have a thread calling a method that could take while. The thread keeps itself on that method until I get the result. If I send another request to that method in the same way, now there are two threads running (provided the first did not return the result yet). But I want to give the priority to the last thread and don't want to get the results from the previously started threads. So how could I get rid of earlier threads when I do not have a stop method?

推荐答案

的标准设计模式是在可设定为停止它的线程使用本地变量

The standard design pattern is to use a local variable in the thread that can be set to stop it:

public class MyThread extends Thread {
   private volatile boolean running = true;

   public void stop() {
      running = false;
   }

   public void run() {
      while (running) {
         // do your things
      }    
   }
}

这种方式可以greacefully终止线程，也就是未抛出 InterruptedException的。

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