本文共 1044 字，大约阅读时间需要 3 分钟。

下列方法分两个阶段关闭 ExecutorService。第一阶段调用 shutdown 拒绝传入任务，然后调用 shutdownNow（如有必要）取消所有遗留的任务： 

void shutdownAndAwaitTermination(ExecutorService pool) {   pool.shutdown(); // Disable new tasks from being submitted   try {     // Wait a while for existing tasks to terminate     if (!pool.awaitTermination(60, TimeUnit.SECONDS)) {       pool.shutdownNow(); // Cancel currently executing tasks       // Wait a while for tasks to respond to being cancelled       if (!pool.awaitTermination(60, TimeUnit.SECONDS))           System.err.println("Pool did not terminate");     }   } catch (InterruptedException ie) {     // (Re-)Cancel if current thread also interrupted     pool.shutdownNow();     // Preserve interrupt status     Thread.currentThread().interrupt();   } }

shutdown调用后，不可以再submit新的task，已经submit的将继续执行。

shutdownNow试图停止当前正执行的task，并返回尚未执行的task的list

转载地址：https://blog.csdn.net/jdsjlzx/article/details/9079199 如侵犯您的版权，请留言回复原文章的地址，我们会给您删除此文章，给您带来不便请您谅解！