Java线程等待并通知 [英] Java thread wait and notify

问题描述

我有两个主题。线程A从队列中提取一些元素，线程B将一些元素添加到队列中。

I have two threads. Thread A is pulling some elements from queue and thread B is adding some elements to the queue.

我希望线程A在队列为空时进入休眠状态。

I want thread A to go to sleep when the queue is empty.

当线程B添加一些元素时在队列中，它应该确保线程A正在工作。如何在Java中完成？

When thread B adds some element to the queue it should make sure that thread A is working. How can this be done in Java?

推荐答案

使用 BlockingQueue ，即：

一个 Queue ，它还支持在检索元素时等待队列变为非空的操作，并等待空间变为空存储元素时在队列中可用。

A Queue that additionally supports operations that wait for the queue to become non-empty when retrieving an element, and wait for space to become available in the queue when storing an element.

说真的，不要试图在这里重新发明轮子。




（如果必须使用wait / notify，请阅读本教程。请多给自己带来痛苦！）

Seriously, don't try to reinvent the wheel here.




(If you must use wait/notify, read this tutorial. But spare yourself the pain, please!)

这篇关于Java线程等待并通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！