Question

我创建了2个线程。我需要从一个线程向另一个线程提交可运行对象，然后在另一个线程中执行它。有可能吗？

编辑：实际上，我需要使用主线程，而不仅仅是另一个。因此，无法使用ExecutorService。

编辑：有解决此问题的方法：Running code on the main thread from a secondary thread?。

我已在示例下方发布：

public class SomeClass {

    private static Thread thread;
    private static Thread another_thread;

    public static void main(String[] args) {

        thread = new Thread(() -> {
            //do something
            Runnable runnable = () -> {
              //do something
            };
            //submit runnable to another_thread
            //do something else while the Runnable runnable is being executed in another_thread
        });

        another_thread = new Thread(() -> {
            //do something
        });

        another_thread.start();
        thread.start();
    }
}

Answer 1

这是您通常想要做的：

class YourClass {
    public static void main(String[] args) {
        ExecutorService executor1 = Executors.newSingleThreadExecutor();
        ExecutorService executor2 = Executors.newSingleThreadExecutor();

        Runnable run1 = () -> {
            Runnable run2 = createRunnable();
            // submit in second thread
            executor2.submit(run2);
        }

        // submit in first thread
        executor1.submit(run1);
    }

是否可以执行从一个线程提交到另一个线程中另一个现有且正在运行的线程的任务？

1 个答案: