如何在Callable中完成异常处理 [英] How is exception handling done in a Callable

问题描述

我理解callable的调用可以将异常抛给调用它的父方法，而runnable不是这样。

I understand that callable's call can throw the exception to the parent method calling it which is not the case with runnable.

我想知道怎么做因为它是一个线程方法而且是线程堆栈的最底层方法。

I wonder how because it's a thread method and is the bottommost method of the thread stack.

推荐答案

Callable 将您的异常抛出到您的调用线程，例如你得到你提交 callable 的 Future 的结果。

public class CallableClass implements Callable<String> {
...
}

ExecutorService executor = new ScheduledThreadPoolExecutor(5);
Future<Integer> future = executor.submit(callable);

try {
    System.out.println(future.get());
} catch (Exception e) {
    // do something
}

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