spring 管理的线程池实现优雅关闭

创建线程池时, setWaitForTasksToCompleteOnShutdown   setAwaitTerminationSeconds

// 将ThreadPoolTaskExecutor实例交给Spring管理
@Bean
public ThreadPoolTaskExecutor threadPoolTaskExecutor() {
    ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
    executor.setCorePoolSize(1);
    executor.setMaxPoolSize(1);
    
    // 告诉线程池，在销毁之前执行shutdown方法
    executor.setWaitForTasksToCompleteOnShutdown(true);
    // shutdown\shutdownNow 之后等待3秒
    executor.setAwaitTerminationSeconds(3);
    
    return executor;
}
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原文链接：https://blog.csdn.net/qq271859852/article/details/107442161

关闭线程池

@Component
public class ContextClosedHandler implements ApplicationListener<ContextClosedEvent> {
    // 直接注入
    @Resource
    private ThreadPoolTaskExecutor executor;

    @Override
    public void onApplicationEvent(ContextClosedEvent event) {
            // 关闭线程池
        executor.destroy();
    }
}

转自  https://blog.csdn.net/qq271859852/article/details/107442161