{"id":3941,"date":"2022-09-14T11:35:11","date_gmt":"2022-09-14T03:35:11","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3941"},"modified":"2023-02-13T14:27:05","modified_gmt":"2023-02-13T06:27:05","slug":"%e8%bd%ac%e8%bd%bd%e4%b8%80%e7%af%87%e6%96%87%e7%ab%a0%ef%bc%8c%e5%85%b3%e4%ba%8ecountdownlatch","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3941","title":{"rendered":"\u8f6c\u8f7d\u4e00\u7bc7\u6587\u7ae0\uff0c\u5173\u4e8eCountDownLatch\u548c\u7ebf\u7a0b\u6c60\u7684\u62d2\u7edd\u7b56\u7565"},"content":{"rendered":"\n

\u539f\u6587\uff1ahttps:\/\/juejin.cn\/post\/7129116234804625421<\/p>\n\n\n\n

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\"\u672a\u547d\u540d\u6587\u4ef6.png\"\/<\/figure>\n\n\n\n

\u4e3a\u4e86\u63d0\u9ad8\u6267\u884c\u7684\u901f\u5ea6\uff0c\u6240\u4ee5\u5728\u91c7\u7528\u7ebf\u7a0b\u6c60\u53bb\u6267\u884c \u4e0b\u8f7d-\u4fee\u6539-\u4e0a\u4f20 \u7684\u64cd\u4f5c\uff0c\u5e76\u5728\u5168\u90e8\u6267\u884c\u5b8c\u4e4b\u540e\u7edf\u4e00\u63d0\u4ea4\u4fdd\u5b58\u6587\u4ef6\u5730\u5740\u5230\u6570\u636e\u5e93\uff0c\u4e8e\u662f\u52a0\u5165\u4e86CountDownLatch\u6765\u8fdb\u884c\u63a7\u5236\u3002<\/p>\n\n\n\n

\u5177\u4f53\u5b9e\u73b0<\/h2>\n\n\n\n

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public static ExecutorService testExtcutor() {\n        return new ThreadPoolExecutor(\n                2,\n                2,\n                0L,\n                TimeUnit.SECONDS,\n                new LinkedBlockingQueue<>(1));\n    }\n\u590d\u5236\u4ee3\u7801<\/code><\/pre>\n\n\n\n
\u6a21\u62df\u6267\u884c<\/p>\n\n\n\n
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Exception in thread \"main\" java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@300ffa5d rejected from java.util.concurrent.ThreadPoolExecutor@1f17ae12[Running, pool size = 2, active threads = 2, queued tasks = 1, completed tasks = 0]\n  at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)\n  at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)\n  at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379)\n  at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)\n  at Thread.executor.executorTestBlock.main(executorTestBlock.java:28)\n\n\n\u539f\u6587\u8bf4\u7684\u95ee\u9898\u5c31\u662f\u5728\u7ebf\u7a0b\u6c60\u4e2d\u505a\u4efb\u52a1\uff0c\u4f7f\u7528countdownLatch\u505a\u5408\u5e76\u63d0\u4ea4\uff0c\u4f46\u662f\u7ebf\u7a0b\u6c60\u8d70\u5230\u4e86\u62d2\u7edd\u7b56\u7565\uff0c\u5bfc\u81f4countDown\u65b9\u6cd5\u65e0\u6cd5\u6b63\u5e38\u6267\u884c\u7684\u95ee\u9898\uff0c\u91c7\u53d6\u7684\u662f\u4fee\u6539\u62d2\u7edd\u7b56\u7565\uff0c\u4f7f\u7528\u5f53\u524d\u7ebf\u7a0b\u5904\u7406\u7684\u65b9\u5f0f\u6765\u6267\u884c\u7684\u3002\u4e5f\u53ef\u4ee5\u53ea\u7528completableFuture\u6765\u5904\u7406\u3002\n\n\u53e6\u4e00\u4e2a\u4f8b\u5b50\uff1a\u8bb2\u7684\u4e5f\u662f\u62d2\u7edd\u7b56\u7565\u7684\u4e8b\u60c5\n\nhttps://juejin.cn\/post\/7186512174779465765\n\n\u5c31\u662f\u81ea\u5b9a\u4e49\u62d2\u7edd\u7b56\u7565\u7684\u65f6\u5019\uff0c\u8981\u6ce8\u610f\u629b\u51fa\u5f02\u5e38\u3001\u53d1\u9001\u901a\u77e5\u7b49\u5904\u7406\uff0c\u4e0d\u8981\u8ba9\u5f02\u5e38\u88ab\u5403\u6389\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5176\u4ed6\u7684\u95ee\u9898\u3002\u53e6\u5916future.get\u65f6\u5019\uff0c\u8bb0\u5f97\u52a0\u4e0a\u8d85\u65f6\u65f6\u95f4\uff0c\u7ed9\u4e00\u4e2a\u515c\u5e95\u3002\n\n\n\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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