如何停止一个线程？ [英] How to stop a thread?

问题描述

当一个线程是活的，我怎么能停止线程？我已经给像

When a thread is alive, how can I stop the thread? I have given like

if(thread.isAlive()){
    thread.stop();
}

但该方法停止去precated并抛出异常

but the method stop is deprecated and is throwing an exception

01-21 14:12:40.188: ERROR/global(535):     Deprecated Thread methods are not supported.
01-21 14:12:40.188: ERROR/global(535):    java.lang.UnsupportedOperationException
01-21 14:12:40.188: ERROR/global(535):     at java.lang.VMThread.stop(VMThread.java:85)
01-21 14:12:40.188: ERROR/global(535):     at java.lang.Thread.stop(Thread.java:1379)
01-21 14:12:40.188: ERROR/global(535):     at java.lang.Thread.stop(Thread.java:1344)

如何才能解决这个问题？

How can we solve this?

推荐答案

在一般情况下，你就不要强行终止线程，因为它是危险的。您可以设置一个标志，告诉线程问题，从它的线程循环在受控的情况下退出。

In general, you don't forcibly stop threads because it's dangerous. You set a flag that tells the thread in question to exit from it's thread loop under controlled circumstances.

您的线程循环如下这些方针的东西：

Your thread loop looks something along these lines:

void run() {
  while (shouldContinue) {
    doThreadWorkUnit();
  }
}

和其他地方将 shouldContinue 变量，等待线程完成：

And somewhere else you set the shouldContinue variable and wait for the thread to finish:

...
thread.shouldContinue = false;
thread.join();
...

（所有这一切都可能是不正确的Java，因为我没有做Java的，认为它是伪code和修改您的实际语言/线程库的/ etc。）

(All this is likely not correct Java, since I don't do Java. View it as pseudo code and modify for your actual language/thread library/etc.)

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