接下来，对于另一个线程池类DatamineThread，几乎复制了完全相同的结构。

Next, you almost copy the exact same structure for the next thread pool class, DatamineThread.

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分析这段代码时您可以看到，我们添加了另一个队列实例，然后将该队列传递给第一个线程池类ThreadURL。

In looking at the code, you can see that we added another instance of a queue, and then passed that queue into the first thread pool class, ThreadURL.

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如果您发现您的应用程序需要线程池，那么请考虑使用ut il . concurrent中的某个executor类，例如PooledExecutor，而不用从头开始编写。

If you find yourself in need of a thread pool for your application, consider using one of the Executor classes from util.concurrent, such as PooledExecutor, rather than writing one from scratch.

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