Spring @Async 限制线程数 [英] Spring @Async limit number of threads

问题描述

我的问题与这个问题非常相似:@Async 阻止一个线程继续，直到其他线程完成

My question is very similar to this one : @Async prevent a thread to continue until other thread have finished

基本上我需要在更多线程中运行~数百次计算.我只想运行一些并行线程，例如5 个线程并行 5 个计算.

Basically i need run ~ hundreds of computations in more threads. I want to run only some amount of parallel threads e.g. 5 threads with 5 computationis in paralell.

我使用的是 spring 框架，@Async 选项是自然的选择.我不需要全功能的 JMS 队列，这对我来说有点开销.

I am using spring framework and @Async option is natural choice. I do not need full-featured JMS queue, that`s a bit overhead for me.

有什么想法吗?谢谢

推荐答案

您是否检查了 Task Executor?您可以定义一个线程池，用最大数量的线程来执行您的任务.

Have you checked out Task Executor? You can define a Thread Pool, with a maximum number of threads to execute your tasks.

如果您想将它与 @Async 一起使用，请在您的 spring-config 中使用它:

If you want to use it with @Async, use this in your spring-config:

<task:annotation-driven executor="myExecutor" scheduler="myScheduler"/>

<task:executor id="myExecutor" pool-size="5"/>

<task:scheduler id="myScheduler" pool-size="10"/>

完整参考这里 (25.5.3).希望这会有所帮助.

Full reference here (25.5.3). Hope this helps.

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