{"id":10006761,"date":"2022-10-28T16:13:34","date_gmt":"2022-10-28T08:13:34","guid":{"rendered":"https:\/\/ityet.com\/?p=10006761"},"modified":"2022-10-28T16:13:34","modified_gmt":"2022-10-28T08:13:34","slug":"%e6%88%91%e7%bb%88%e4%ba%8e%e4%bc%9a%e5%86%99-java-%e7%9a%84%e5%ae%9a%e6%97%b6%e4%bb%bb%e5%8a%a1%e4%ba%86%ef%bc%81","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006761","title":{"rendered":"\u6211\u7ec8\u4e8e\u4f1a\u5199 Java \u7684\u5b9a\u65f6\u4efb\u52a1\u4e86\uff01"},"content":{"rendered":"

\u524d\u8a00<\/h2>\n

\u5b66\u8fc7\u5b9a\u65f6\u4efb\u52a1\uff0c\u4f46\u662f\u6211\u5fd8\u4e86\uff0c\u5fd8\u5f97\u4e00\u5e72\u4e8c\u51c0\uff0c\u5bb3\u6015\uff0c\u4e00\u76f4\u542c\u522b\u4eba\u8bf4\uff1a<\/p>\n

\n

\u4f60\u5199\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u5c31\u597d\u4e86\u3002<\/p>\n

\u5199\u4e2a\u5b9a\u65f6\u4efb\u52a1\u8ba9\u4ed6\u53bb\u722c\u53d6\u5c31\u884c\u4e86\u3002<\/p>\n<\/blockquote>\n

\u6211\u4e0d\u4f1a\uff0c\u6240\u4ee5\u73b0\u5728\u5f97\u8865\u56de\u6765\u4e86\uff0c\u6b20\u4e0b\u7684\u7ec8\u7a76\u8981\u8fd8\u7684\uff0c\/(\u3112o\u3112)\/~~<\/p>\n

\u5b9a\u65f6\u4efb\u52a1\u662f\u4ec0\u4e48\uff1f<\/h2>\n

\u5927\u5bb6\u90fd\u7528\u8fc7\u95f9\u949f\uff0c\u95f9\u949f\u53ef\u4ee5\u8bf4\u662f\u4e00\u79cd\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n

\u6bd4\u5982\u6211\u4eec\u8bbe\u5b9a\u4e86\u5468\u4e00\u5230\u5468\u4e94\u65e9\u4e0a7\u70b9\u534a\u7684\u65f6\u95f4\u54cd\u94c3\uff0c\u90a3\u4e48\u95f9\u949f\u5c31\u4f1a\u5728\u5468\u4e00\u5230\u5468\u4e94\u7684\u65e9\u4e0a7\u70b9\u534a\u8fdb\u884c\u54cd\u94c3\uff0c\u8fd9\u79cd\u5c31\u662f\u5b9a\u65f6\u7684\u4efb\u52a1\u3002\u65f6\u95f4\u5b9a\u5728 \u5468\u4e00\u5230\u5468\u4e94\u7684\u65e9\u4e0a7\u70b9\u534a<\/strong> \uff0c\u4efb\u52a1\u5c31\u662f \u54cd\u94c3<\/strong>\u3002<\/p>\n

\u90a3\u4e48\uff0c\u5728 Java \u4e2d\uff0c\u5982\u4f55\u5b9e\u73b0\u8fd9\u6837\u7684\u529f\u80fd\u5462\uff1f\u5373\u5982\u4f55\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\u5462\uff1f<\/strong><\/p>\n

\u5b9a\u65f6\u4efb\u52a1\u7684\u6709\u54ea\u4e9b\u662f\u5b9e\u73b0\u65b9\u5f0f\uff1f<\/h2>\n

\u8bf4\u660e\uff1a@Slf4j \u6ce8\u89e3\u6765\u6e90\u4e8e Lombok \uff0c\u9700\u8981\u5f15\u5165 Lombok \u4f9d\u8d56<\/p><\/blockquote>\n

\u7eaf\u624b\u5199\u5355\u7ebf\u7a0b\u5faa\u73af<\/h3>\n

\u5355\u7ebf\u7a0b\uff0c\u5199\u4e00\u4e2a\u6b7b\u5faa\u73af\uff0c\u901a\u8fc7\u7ebf\u7a0b\u7684\u7761\u7720\uff08\u7b49\u5f85\uff09\u5b8c\u6210\u5b9a\u65f6\u4efb\u52a1\uff1a<\/p>\n

@Slf4j\npublic class ThreadTaskDemo {\n    public static void main(String[] args) {\n        timer1();\n    }\n\n    public static void timer1() {\n        new Thread(() -> {\n            while (true) {\n                log.info("\u5f53\u524d\u65f6\u95f4 {}", LocalDateTime.now());\n                try {\n                    \/\/ \u6bcf\u4e2a1\u79d2\u6267\u884c\u4e00\u6b21\n                    Thread.sleep(1000);\n                } catch (InterruptedException e) {\n                    e.printStackTrace();\n                }\n            }\n        }).start();\n    }\n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
14:02:35.893 [Thread-0] INFO cn.god23bin.demo.timer.ThreadTaskDemo - \u5f53\u524d\u65f6\u95f4 2022-10-25T14:02:35.892\n14:02:36.904 [Thread-0] INFO cn.god23bin.demo.timer.ThreadTaskDemo - \u5f53\u524d\u65f6\u95f4 2022-10-25T14:02:36.904\n14:02:37.907 [Thread-0] INFO cn.god23bin.demo.timer.ThreadTaskDemo - \u5f53\u524d\u65f6\u95f4 2022-10-25T14:02:37.907<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\u6bcf\u79d2\u6267\u884c\u4e00\u6b21\uff0c\u6210\u529f\u5b9e\u73b0\u4e86\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
Timer \u548c\u5b83\u7684\u5c0f\u4f19\u4f34<\/h3>\n
\u5728 java.util<\/strong> \u5305\u4e0b\uff0c\u6709\u8fd9\u4e48 3 \u4e2a\u4e1c\u897f\uff0c\u5206\u522b\u662f Timer<\/strong> \u7c7b\u3001TimerTask<\/strong> \u63a5\u53e3\u3001TimerThread<\/strong> \u7c7b\uff0c\u8fd9 3 \u4e2a\u4e1c\u897f\u5c31\u53ef\u4ee5\u5e2e\u6211\u4eec\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
Timer \u6709\u8fd9\u4e48 2 \u4e2a\u65b9\u6cd5\uff08\u5f53\u7136\u4e0d\u6b62\u8fd9\u4e24\u4e2a\uff0c\u8fd8\u6709 4 \u4e2a\u76f8\u5173\u7684\uff09\uff1a<\/p>\n
\/\/ \u5ef6\u8fdfdelay\u79d2\u540e\u6267\u884ctask\u4efb\u52a1\npublic void schedule(TimerTask task, long delay);\n\/\/ \u5ef6\u8fdfdelay\u79d2\u540e\uff0c\u4ee5period\u95f4\u9694\u65f6\u95f4\u6267\u884ctask\u4efb\u52a1\npublic void schedule(TimerTask task, long delay, long period);<\/code><\/pre>\n
TimerTask \u6709\u4e2a run()<\/strong> \u62bd\u8c61\u65b9\u6cd5\uff0c\u90a3\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e2a\u62bd\u8c61\u65b9\u6cd5\u4f5c\u4e3a\u6211\u4eec\u7684\u4efb\u52a1\u903b\u8f91<\/strong>\uff0c\u7531\u4e8e TimerTask \u662f\u63a5\u53e3\uff0c\u9700\u8981\u4e00\u4e2a\u7c7b\u5b9e\u73b0\u5b83\uff0c\u90a3\u6211\u4eec\u4e0b\u9762\u5c31\u7528\u533f\u540d\u5185\u90e8\u7c7b\u7684\u65b9\u5f0f<\/strong>\u6765\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Slf4j\npublic class TimerDemo {\n\n    public static void main(String[] args) {\n        timer1();\n    }\n\n    public static void timer1() {\n        \/\/ \u5355\u7ebf\u7a0b\n        Timer timer = new Timer();\n        log.info("1\u79d2\u540e\u6267\u884c\u4efb\u52a1A\uff0cA\u5b8c\u6210\u540e\uff0c\u7b49\u5f851\u79d2\u5f00\u59cb\u5b9a\u65f6\u6267\u884c\u4efb\u52a1B\uff0c\u5f53\u524d\u65f6\u95f4 {}", LocalDateTime.now());\n        \/\/ 1\u79d2\u540e\u6267\u884c\n        timer.schedule(new TimerTask() {\n            @Override\n            public void run() {\n                log.info("\u4efb\u52a1A \u5f53\u524d\u65f6\u95f4 {}", LocalDateTime.now());\n            }\n        }, 1000); \/\/ \u8fd9\u91cc 1000\uff0c\u5c31\u662f\u4ee3\u8868\u5ef6\u8fdf 1000 \u6beb\u79d2\u540e\u518d\u6267\u884c\n\n        \/\/ \u6bcf\u96942\u79d2\u6267\u884c\u4e00\u6b21\u8fd9\u4e2a\u4efb\u52a1\n        timer.schedule(new TimerTask() {\n            @Override\n            public void run() {\n                log.info("\u5b9a\u65f6\u4efb\u52a1B \u5f53\u524d\u65f6\u95f4 {}", LocalDateTime.now());\n            }\n        }, 1000, 2000); \/\/ 1000 \u540c\u7406\uff0c2000 \u5373\u6267\u884c\u5b8c\u672c\u6b21\u4efb\u52a1\u540e\uff0c\u9694 2000 \u6beb\u79d2\u540e\u518d\u4e00\u6b21\u6267\u884c\uff0c\u8fbe\u5230\u5b9a\u65f6\u4efb\u52a1\u7684\u6548\u679c\n    }\n\n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
14:09:37.416 [main] INFO cn.god23bin.demo.timer.TimerDemo - 1\u79d2\u540e\u6267\u884c\u4efb\u52a1A\uff0cA\u5b8c\u6210\u540e\uff0c\u7b49\u5f851\u79d2\u5f00\u59cb\u5b9a\u65f6\u6267\u884c\u4efb\u52a1B\uff0c\u5f53\u524d\u65f6\u95f4 2022-10-25T14:09:37.415\n14:09:38.428 [Timer-0] INFO cn.god23bin.demo.timer.TimerDemo - \u4efb\u52a1A \u5f53\u524d\u65f6\u95f4 2022-10-25T14:09:38.428\n14:09:38.428 [Timer-0] INFO cn.god23bin.demo.timer.TimerDemo - \u5b9a\u65f6\u4efb\u52a1B \u5f53\u524d\u65f6\u95f4 2022-10-25T14:09:38.428\n14:09:40.443 [Timer-0] INFO cn.god23bin.demo.timer.TimerDemo - \u5b9a\u65f6\u4efb\u52a1B \u5f53\u524d\u65f6\u95f4 2022-10-25T14:09:40.443\n14:09:42.457 [Timer-0] INFO cn.god23bin.demo.timer.TimerDemo - \u5b9a\u65f6\u4efb\u52a1B \u5f53\u524d\u65f6\u95f4 2022-10-25T14:09:42.457<\/code><\/pre>\n
\u4ece\u63a7\u5236\u53f0\u8f93\u51fa\u7684\u65f6\u95f4\u53ef\u4ee5\u770b\u5230\uff0c\u4efb\u52a1 A \u662f\u53ea\u6267\u884c\u4e86\u4e00\u6b21\uff0c\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u4f20\u9012 period \u53c2\u6570\u7ed9 schedule () \u65b9\u6cd5\u3002\u800c\u4efb\u52a1 B \u662f\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0c\u56e0\u4e3a\u4f20\u9012\u4e86 period \u53c2\u6570\uff0cperiod \u53c2\u6570\u4e3a 2000\uff0c\u5373 2000 \u6beb\u79d2\u3002<\/p>\n
\u6240\u4ee5\uff0c\u4efb\u52a1 B \u4f1a\u6bcf\u9694 2 \u79d2\u6267\u884c\u4e00\u6b21\u3002\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u901a\u8fc7 Timer \u5b9e\u73b0\u4e86\u5b9a\u65f6\u4efb\u52a1\u3002\u4e0b\u9762\u770b\u770b\u57fa\u4e8e\u591a\u7ebf\u7a0b\u7684 ScheduledExecutorService<\/code> \u63a5\u53e3\u3002<\/p>\n
ScheduledExecutorService<\/h3>\n
ScheduledExecutorService<\/code> \u63a5\u53e3\u4f4d\u4e8e java.util.concurrent<\/code> \u5305\u4e2d\uff0c\u662f\u7ee7\u627f ExecutorService<\/code> \u63a5\u53e3\u7684\u3002<\/p>\n
\u8fd9\u4e2a\u63a5\u53e3\u6709 4 \u4e2a\u62bd\u8c61\u65b9\u6cd5\uff08\u5148\u4e86\u89e3\u4e00\u4e0b\uff09\uff1a<\/p>\n
public ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit);\npublic <V> ScheduledFuture<V> schedule(Callable<V> callable, long delay, TimeUnit unit);\npublic ScheduledFuture<?> scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit);\npublic ScheduledFuture<?> scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit);<\/code><\/pre>\n
\u4ece\u4e0a\u9762\u7684\u62bd\u8c61\u65b9\u6cd5\u53ef\u4ee5\u770b\u5230\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f Runnable \u63a5\u53e3\u6216 Callable \u63a5\u53e3\uff0c\u8fd9\u91cc\u5c31\u662f\u5199\u4efb\u52a1\u903b\u8f91\u7684\uff0c\u540e\u9762\u7684 delay \u4e5f\u548c\u4e4b\u524d\u7684\u610f\u601d\u4e00\u6837\uff0c\u5ef6\u8fdf\u591a\u5c11\u65f6\u95f4\u624d\u5f00\u59cb\u6267\u884c\u8fd9\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0cunit \u4e3b\u8981\u662f\u6307\u5b9a long \u53c2\u6570\u7684\u65f6\u95f4\u5355\u4f4d\u3002period \u4e5f\u662f\u4e00\u6837\u7684\u610f\u601d\uff0c\u95f4\u9694\u591a\u5c11\u79d2\uff08\u5468\u671f\uff09\u624d\u6267\u884c\u4e0b\u4e00\u6b21\u7684\u4efb\u52a1\u3002<\/p>\n
ExecutorService \u63a5\u53e3\u8868\u8ff0\u4e86\u5f02\u6b65\u6267\u884c\u7684\u673a\u5236\uff0c\u5e76\u4e14\u53ef\u4ee5\u8ba9\u4efb\u52a1\u5728\u540e\u53f0\u6267\u884c\u3002ExecutorService \u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b\u6709\u6211\u4eec\u77e5\u9053\u7684 ThreadPoolExecutor<\/code> \uff08\u4e0d\u77e5\u9053\u7684\u8bdd\uff0c\u73b0\u5728\u5c31\u77e5\u9053\u5566\uff09\u3002<\/p><\/blockquote>\n
\u57fa\u672c\u4f7f\u7528<\/h4>\n
\u90a3\u6211\u4eec\u5982\u4f55\u83b7\u53d6 ScheduledExecutorService<\/code> \u7684\u5b9e\u73b0\u7c7b\uff1f\u5982\u4f55\u4f7f\u7528\u5b83\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\uff1f<\/strong><\/p>\n
\u53ef\u4ee5\u901a\u8fc7 Executors.newSingleThreadScheduledExecutor()<\/code> \u83b7\u53d6\u5176\u5b9e\u73b0\u7c7b\uff0c\u7136\u540e\u8c03\u7528 schedule() \u65b9\u6cd5\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
\u73b0\u5728\u5148\u770b\u4e00\u4e0b\uff0c\u5982\u4f55\u4f7f\u7528\uff1a<\/p>\n
@Slf4j\npublic class ScheduledExecutorServiceDemo {\n    public static void main(String[] args) throws ExecutionException, InterruptedException {\n        testScheduledExecutorService();\n    }\n\n    public static void testScheduledExecutorService() throws ExecutionException, InterruptedException {\n        ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();\n        log.info("2\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---{}", LocalDateTime.now());\n        ScheduledFuture<?> future = scheduledExecutorService.schedule(() -> {\n            log.info("\u4efb\u52a1\u5f00\u59cb---{}", LocalDateTime.now());\n            try {\n                Thread.sleep(2000);\n            } catch (InterruptedException e) {\n                e.printStackTrace();\n            }\n            log.info("\u4efb\u52a1\u7ed3\u675f---{}", LocalDateTime.now());\n            return "ok";\n        }, 2000, TimeUnit.MILLISECONDS); \/\/ \u5ef6\u8fdf 2 \u79d2\u540e\u6267\u884c\n        log.info("\u4efb\u52a1\u6267\u884c\u540e future {}, \u65f6\u95f4 {}", future.get(), LocalDateTime.now());\n    }\n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
14:15:44.510 [main] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - 2\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---2022-10-25T14:15:44.509\n14:15:46.524 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:15:46.524\n14:15:48.537 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:15:48.537\n14:15:48.538 [main] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u6267\u884c\u540e future ok, \u65f6\u95f4 2022-10-25T14:15:48.538<\/code><\/pre>\n
\u5f88\u660e\u663e\uff0c\u8fd9\u91cc\u4e0d\u662f\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0c\u56e0\u4e3a\u53ea\u6267\u884c\u4e86\u4e00\u6b21\u5c31\u7ed3\u675f\u4e86\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8c03\u7528\u4e24\u5916\u4e24\u4e2a\u6765\u5b9e\u73b0\uff0c\u5206\u522b\u662f scheduleAtFixedRate()<\/code> \u65b9\u6cd5\u548c scheduleWithFixedDelay()<\/code> \u65b9\u6cd5\u3002<\/p>\n
\u56fa\u5b9a\u9891\u7387\u89e6\u53d1\u5b9a\u65f6\u4efb\u52a1<\/h4>\n
scheduleAtFixedRate() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u56fa\u5b9a\u591a\u4e45\u5c31\u89e6\u53d1\u4e00\u6b21\u4efb\u52a1\u3002\u4e0b\u9762\u6211\u4eec\u5199\u4e00\u4e2a\u5ef6\u8fdf 2 \u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u7ecf\u8fc7 5 \u79d2\u540e\u518d\u6267\u884c\u4e0b\u4e00\u6b21\u7684\u4efb\u52a1\u7684\u4ee3\u7801\uff1a<\/p>\n
@Slf4j\npublic class ScheduledExecutorServiceDemo {\n    public static void main(String[] args) throws ExecutionException, InterruptedException {\n        testFixedRate();\n    }\n\n    public static void testFixedRate() {\n        ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();\n        log.info("2\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---{}", LocalDateTime.now());\n        \/\/ \u56fa\u5b9a\u9891\u7387\uff08\u6bcf\u96945\u79d2\uff09\u5f00\u59cb\u6267\u884c\u4e00\u4e2a\u4efb\u52a1\n        scheduledExecutorService.scheduleAtFixedRate(() -> {\n            log.info("\u4efb\u52a1\u5f00\u59cb---{}", LocalDateTime.now());\n            try {\n                Thread.sleep(2000);\n            } catch (InterruptedException e) {\n                e.printStackTrace();\n            }\n            log.info("\u4efb\u52a1\u7ed3\u675f---{}", LocalDateTime.now());\n        }, 2000, 5000, TimeUnit.MILLISECONDS);\n    }\n}<\/code><\/pre>\n
\u901a\u8fc7 Thread.sleep(2000)<\/code> \u6a21\u62df\u4efb\u52a1\u6267\u884c\u4e86 2 \u79d2\u7684\u65f6\u95f4\uff0c\u63a7\u5236\u53f0\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n
14:17:15.081 [main] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - 2\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---2022-10-25T14:17:15.079\n14:17:17.094 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:17:17.094\n14:17:19.109 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:17:19.109\n14:17:22.094 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:17:22.094\n14:17:24.106 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:17:24.106\n14:17:27.090 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:17:27.090\n14:17:29.099 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:17:29.099<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u7b2c\u4e00\u6b21\u6267\u884c\u7684\u65f6\u95f4\u662f 14:17:17<\/code> \uff0c\u5373\u7b2c 17 \u79d2\uff0c\u4e0b\u4e00\u6b21\u6267\u884c\u7684\u65f6\u95f4\u662f 14:17:22<\/code> \uff0c\u5373\u7b2c 22 \u79d2\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u7ecf\u8fc7\u4e86 5 \u79d2\u949f\uff0c\u8fd9\u5c31\u662f scheduleAtFixedRate() \u65b9\u6cd5\u7684\u6548\u679c\u3002<\/p>\n
\u56fa\u5b9a\u5ef6\u8fdf\u89e6\u53d1\u5b9a\u65f6\u4efb\u52a1<\/h4>\n
scheduleWithFixedDelay() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u56fa\u5b9a\u4efb\u52a1\u5b8c\u6210\u540e\u5ef6\u8fdf\u591a\u4e45\u624d\u6267\u884c\u4e0b\u4e00\u6b21\u4efb\u52a1\u3002\u4e0b\u9762\u6211\u4eec\u5199\u4e00\u4e2a\u5ef6\u8fdf 1 \u79d2\u540e\u5f00\u59cb\u6267\u884c\u5b9a\u65f6\u4efb\u52a1\uff0c\u5f53\u4efb\u52a1\u5b8c\u6210\u540e\uff0c\u5ef6\u8fdf 4 \u79d2\u518d\u6267\u884c\u4e0b\u4e00\u6b21\u4efb\u52a1\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Slf4j\npublic class ScheduledExecutorServiceDemo {\n    public static void main(String[] args) throws ExecutionException, InterruptedException {\n        testFixedDelay();\n    }\n\n    public static void testFixedDelay() {\n        ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();\n        log.info("1\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---{}", LocalDateTime.now());\n        \/\/ \u4efb\u52a1\u5b8c\u6210\u540e\u95f4\u96944\u79d2\u5f00\u59cb\u6267\u884c\u4e0b\u4e00\u6b21\u4efb\u52a1\n        scheduledExecutorService.scheduleWithFixedDelay(() -> {\n            log.info("\u4efb\u52a1\u5f00\u59cb---{}", LocalDateTime.now());\n            try {\n                Thread.sleep(2000);\n            } catch (InterruptedException e) {\n                e.printStackTrace();\n            }\n            log.info("\u4efb\u52a1\u7ed3\u675f---{}", LocalDateTime.now());\n        }, 1000, 4000, TimeUnit.MILLISECONDS);\n    }\n}<\/code><\/pre>\n
\u901a\u8fc7 Thread.sleep(2000)<\/code> \u6a21\u62df\u4efb\u52a1\u6267\u884c\u4e86 2 \u79d2\u7684\u65f6\u95f4\uff0c\u63a7\u5236\u53f0\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n
14:20:31.352 [main] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - 1\u79d2\u540e\u5f00\u59cb\u6267\u884c\u4efb\u52a1\uff0c\u6b64\u523b\u65f6\u95f4---2022-10-25T14:20:31.351\n14:20:32.370 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:20:32.370\n14:20:34.371 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:20:34.371\n14:20:38.379 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u5f00\u59cb---2022-10-25T14:20:38.379\n14:20:40.381 [pool-1-thread-1] INFO cn.god23bin.demo.timer.ScheduledExecutorServiceDemo - \u4efb\u52a1\u7ed3\u675f---2022-10-25T14:20:40.381<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u7b2c\u4e00\u6b21\u4efb\u52a1\u7ed3\u675f\u7684\u65f6\u95f4\u662f 14:20:34<\/code> \uff0c\u5373\u7b2c 34 \u79d2\uff0c\u4e0b\u4e00\u6b21\u6267\u884c\u7684\u65f6\u95f4\u662f 14:17:38<\/code> \uff0c\u5373\u7b2c 38 \u79d2\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u7ecf\u8fc7\u4e86 4 \u79d2\u949f\uff0c\u8fd9\u5c31\u662f scheduleWithFixedDelay() \u65b9\u6cd5\u7684\u6548\u679c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f ScheduledExecutorService \u5b9e\u73b0\u7684\u5b9a\u65f6\u4efb\u52a1\uff0c\u63a5\u4e0b\u6765\u770b\u770b Spring \u63d0\u4f9b\u7684\u3002<\/p>\n
Spring \u63d0\u4f9b\u7684\u5b9a\u65f6\u4efb\u52a1<\/h3>\n
Spring \u63d0\u4f9b\u4e86 @EnableScheduling<\/code> \u548c @Scheduled<\/code> \u8fd9\u4e24\u4e2a\u6ce8\u89e3\u6765\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u7c7b\uff0c\u52a0\u4e0a @Component<\/code> \u8ba9 Spring \u6765\u7ba1\u7406\u8fd9\u4e2a Bean\uff08\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u7528 @Configuration \u6ce8\u89e3\uff09\uff0c\u52a0\u4e0a @EnableScheduling<\/code> \u8868\u660e\u8be5 Bean \u5177\u6709\u53ef\u5f00\u542f\u5b9a\u65f6\u4efb\u52a1\u7684\u529f\u80fd\u3002<\/p>\n
\u5728\u8fd9\u4e2a\u666e\u901a\u7684\u7c7b\u4e2d\u7f16\u5199\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u8ba9\u4f60\u5199\u7684\u65b9\u6cd5\u6210\u4e3a\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0c\u53ea\u9700\u5728\u65b9\u6cd5\u4e0a\u52a0\u4e0a @Scheduled<\/code> \u6ce8\u89e3\u5c31\u53ef\u4ee5\u4e86\uff0c\u5c31\u662f\u8fd9\u4e48\u7b80\u5355\uff01<\/p>\n
\u8fd8\u6709\u4e00\u4e2a\u5c31\u662f cron \u8868\u8fbe\u5f0f<\/strong> \u9700\u8981\u5b66\u4e60\uff0c\u8fd9\u4e2a\u8868\u8fbe\u5f0f\u53ef\u4ee5\u8868\u660e\u8fd9\u4e2a\u65b9\u6cd5\u4f55\u65f6\u6267\u884c<\/strong>\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5b9a\u65f6\u4efb\u52a1\uff1a<\/p>\n
@Slf4j\n@Component\n@EnableScheduling\npublic class TaskDemo {\n\n    @Scheduled(cron = "*\/1 * * * * ?")\n    public void printTime() throws InterruptedException {\n        log.info("\u6b64\u523b\u65f6\u95f4 {}", LocalDateTime.now());\n    }\n    \n}<\/code><\/pre>\n
cron \u8868\u8fbe\u5f0f\u6709 6 \u4f4d\uff0c\u662f\u5fc5\u987b\u7684\uff0c\u4ece\u5de6\u5230\u53f3\u5206\u522b\u8868\u793a\uff1a\u79d2\u3001\u5206\u3001\u65f6\u3001\u65e5\u3001\u6708\u3001\u5468<\/code>\u3002<\/p>\n
\u5f53\u7136\u4e5f\u6709\u53ef\u80fd\u662f 7 \u4f4d\uff0c\u90a3\u4e48\u6700\u540e\u4e00\u4f4d\u5c31\u662f\u5e74\uff08\u4e00\u822c\u7701\u7565\u4e0d\u5199\uff09\uff1a\u79d2\u3001\u5206\u3001\u65f6\u3001\u65e5\u3001\u6708\u3001\u5468\u3001\u5e74<\/code>\u3002<\/p>\n
\u53d6\u503c\u8bf4\u660e\uff1a\u6b63\u5e38\u8ba4\u8bc6\uff0c\u79d2\u5206<\/strong>\u90fd\u662f 0 – 59\uff0c\u65f6<\/strong>\u5219\u662f 0 – 23\uff0c\u65e5<\/strong>\u5219\u662f 1 – 31\uff0c\u6708<\/strong>\u5219\u662f 1-12\uff0c\u5468<\/strong>\u5219\u662f 1 – 7\u3002\u5e74<\/strong>\u5219\u53ea\u6709 1970 – 2099<\/p>\n
\u6bcf\u4e00\u4f4d\u90fd\u53ef\u4ee5\u7528\u6570\u5b57\u8868\u793a\uff0c\u5f53\u7136\u8fd8\u53ef\u4ee5\u7528\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26\u8868\u793a\uff0c\u6bd4\u5982\u4e0a\u9762\u51fa\u73b0\u7684 *\/1 * * * * ?<\/code> \uff0c\u7b2c 1 \u4f4d\u7684 *\/1<\/code> \u8868\u793a\u4efb\u610f\u79d2\u6bcf\u96941\u79d2\uff0c\u7b2c 2 \u4f4d\u7684 *<\/code> \u8868\u793a\u4efb\u610f\u5206\u949f\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n
\n
\u8be6\u7ec6\u53ef\u53c2\u8003\u8fd9\u91cc\uff1a\u7b80\u4e66-Cron\u8868\u8fbe\u5f0f\u7684\u8be6\u7ec6\u7528\u6cd5<\/a><\/p>\n
Cron \u751f\u6210\u5de5\u5177\uff1ahttps:\/\/cron.qqe2.com\/<\/a><\/p>\n<\/blockquote>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u8fd0\u884c\u4e4b\u540e\uff0c\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
2022-10-25 14:26:22.013  INFO 18304 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u6b64\u523b\u65f6\u95f4 2022-10-25T14:26:22.013\n2022-10-25 14:26:23.010  INFO 18304 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u6b64\u523b\u65f6\u95f4 2022-10-25T14:26:23.010\n2022-10-25 14:26:24.011  INFO 18304 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u6b64\u523b\u65f6\u95f4 2022-10-25T14:26:24.011\n2022-10-25 14:26:25.011  INFO 18304 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u6b64\u523b\u65f6\u95f4 2022-10-25T14:26:25.011<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u786e\u5b9e\u662f\u6bcf\u9694 1 \u79d2\u6267\u884c\u4e00\u6b21 printTime()<\/code> \u8fd9\u4e2a\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
@Scheduled \u7684\u53e6\u5916\u4e24\u4e2a\u5c5e\u6027<\/h4>\n
@Scheduled<\/code> \u6ce8\u89e3\u9664\u4e86 cron<\/code> \u8fd9\u4e2a\u5c5e\u6027\u5916\uff0c\u8fd8\u6709 fixedRate<\/code> \u5c5e\u6027\u548c fixedDelay<\/code> \u5c5e\u6027\uff0c\u540c\u7406\uff0c\u5c31\u662f\u56fa\u5b9a\u9891\u7387\u89e6\u53d1\u5b9a\u65f6\u4efb\u52a1<\/strong>\u548c\u56fa\u5b9a\u5ef6\u8fdf\u89e6\u53d1\u5b9a\u65f6\u4efb\u52a1<\/strong><\/p>\n
fixedRate<\/h5>\n
@Slf4j\n@Component\n@EnableScheduling\npublic class TaskDemo {\n\n    \/**\n     * \u5f53\u524d\u4efb\u52a1\u6267\u884c\u5230\u4e0b\u4e00\u4e2a\u4efb\u52a1\u5f00\u59cb\u7684\u65f6\u95f4\uff08\u56fa\u5b9a\u9891\u7387\u5f00\u59cb\u6267\u884c\u4e00\u4e2a\u4efb\u52a1\uff0c\u6bcf5\u79d2\u6267\u884c\uff09\uff0c\u90fd\u662f\u5355\u7ebf\u7a0b\u5904\u7406\u7684\n     **\/\n    @Scheduled(fixedRate = 5000)\n    public void printTime1() throws InterruptedException {\n        log.info("\u4efb\u52a1\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(1000);\n        log.info("\u4efb\u52a1\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n    \n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
2022-10-25 14:54:04.824  INFO 23520 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:54:04.824\n2022-10-25 14:54:05.833  INFO 23520 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:54:05.833\n2022-10-25 14:54:09.834  INFO 23520 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:54:09.834\n2022-10-25 14:54:10.843  INFO 23520 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:54:10.843<\/code><\/pre>\n
\u5f53\u7136\uff0c\u5982\u679c\u4efb\u52a1\u7684\u5904\u7406\u903b\u8f91\u8d85\u8fc7\u4e86\u56fa\u5b9a\u7684\u9891\u7387\u65f6\u95f4\uff0c\u6bd4\u5982\u6211\u4eec\u4fee\u6539\u4e0b Thread.sleep(1000)<\/code> \uff0c\u6a21\u62df\u6210 6 \u79d2\uff0c\u5373 Thread.sleep(6000)<\/code>\uff0c\u90a3\u4e48\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n
2022-10-25 14:57:04.212  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:57:04.212\n2022-10-25 14:57:10.227  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:57:10.227\n2022-10-25 14:57:10.227  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:57:10.227\n2022-10-25 14:57:16.241  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:57:16.241\n2022-10-25 14:57:16.242  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:57:16.242\n2022-10-25 14:57:22.243  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:57:22.243\n2022-10-25 14:57:22.243  INFO 9324 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:57:22.243<\/code><\/pre>\n
\u53ef\u4ee5\u53d1\u73b0\uff0c\u5f53\u524d\u4efb\u52a1\u4e00\u5b8c\u6210\u5c31\u4f1a\u7acb\u523b\u6267\u884c\u4e0b\u4e00\u6b21\u4efb\u52a1\uff0c\u8fd9\u5c31\u662f\u5f53\u4efb\u52a1\u7684\u5904\u7406\u903b\u8f91\u8d85\u8fc7\u4e86\u56fa\u5b9a\u7684\u9891\u7387\u65f6\u95f4\u4f1a\u51fa\u73b0\u7684\u60c5\u51b5\u3002<\/p>\n
fixedDelay<\/h5>\n
@Slf4j\n@Component\n@EnableScheduling\npublic class TaskDemo {\n\n    \/**\n     * \u6267\u884c\u5b8c\u6210\u540e\u95f4\u96942\u79d2\u6267\u884c\u4e0b\u4e00\u6b21\n     **\/\n    @Scheduled(fixedDelay = 2000)\n    public void printTime2() throws InterruptedException {\n        log.info("\u4efb\u52a1\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(4000);\n        log.info("\u4efb\u52a1\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n    \n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
2022-10-25 14:55:50.973  INFO 22128 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:55:50.973\n2022-10-25 14:55:54.977  INFO 22128 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:55:54.977\n2022-10-25 14:55:56.987  INFO 22128 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:55:56.987\n2022-10-25 14:56:01.001  INFO 22128 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5b8c\u6210------- 2022-10-25T14:56:01.001\n2022-10-25 14:56:03.012  INFO 22128 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1\u5f00\u59cb------- 2022-10-25T14:56:03.012<\/code><\/pre>\n
\u591a\u4e2a\u5b9a\u65f6\u4efb\u52a1\u7684\u6267\u884c<\/h4>\n
\u540c\u6b65<\/h5>\n
\u5982\u679c\u6211\u4eec\u5199\u591a\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0c\u90a3\u4e48\u5b83\u4eec\u53ea\u4f1a\u540c\u6b65\u6267\u884c\uff0c\u5982\u4e0b\uff1a<\/p>\n
@Slf4j\n@Component\n@EnableScheduling\npublic class TaskDemo {\n\n    @Scheduled(fixedRate = 2000)\n    public void printTime3() throws InterruptedException {\n        log.info("\u4efb\u52a1A\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(2000);\n        log.info("\u4efb\u52a1A\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n\n    @Scheduled(fixedDelay = 2000)\n    public void printTime4() throws InterruptedException {\n        log.info("\u4efb\u52a1B\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(2000);\n        log.info("\u4efb\u52a1B\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n    \n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
2022-10-25 14:59:14.279  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T14:59:14.279\n2022-10-25 14:59:16.283  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T14:59:16.283\n2022-10-25 14:59:16.283  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5f00\u59cb------- 2022-10-25T14:59:16.283\n2022-10-25 14:59:18.288  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5b8c\u6210------- 2022-10-25T14:59:18.288\n2022-10-25 14:59:18.288  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T14:59:18.288\n2022-10-25 14:59:20.301  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T14:59:20.301\n2022-10-25 14:59:20.301  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T14:59:20.301\n2022-10-25 14:59:22.307  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T14:59:22.307\n2022-10-25 14:59:22.307  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T14:59:22.307\n2022-10-25 14:59:24.323  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T14:59:24.323\n2022-10-25 14:59:24.323  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5f00\u59cb------- 2022-10-25T14:59:24.323\n2022-10-25 14:59:26.337  INFO 21588 --- [   scheduling-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5b8c\u6210------- 2022-10-25T14:59:26.337<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u53ea\u6709\u67d0\u4e00\u4e2a\u4efb\u52a1\u5b8c\u6210\u540e\uff0c\u4e0b\u4e00\u4e2a\u4efb\u52a1\u624d\u4f1a\u6267\u884c\u3002<\/p>\n
\u5982\u679c\u60f3\u8981\u5f02\u6b65\uff0c\u5982\u4f55\u5f02\u6b65\u5462\uff1f<\/strong><\/p>\n
\u5f02\u6b65<\/h5>\n
\u5f88\u7b80\u5355\uff0c\u4f7f\u7528 @EnableAsync<\/code> \u548c @Async<\/code> \u8fd9\u4e24\u4e2a\u6ce8\u89e3\u5c31\u53ef\u4ee5\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n
@Slf4j\n@Component\n@EnableScheduling\n@EnableAsync\npublic class TaskDemo {\n\n    @Async\n    @Scheduled(fixedRate = 2000)\n    public void printTime3() throws InterruptedException {\n        log.info("\u4efb\u52a1A\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(2000);\n        log.info("\u4efb\u52a1A\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n\n    @Async\n    @Scheduled(fixedDelay = 2000)\n    public void printTime4() throws InterruptedException {\n        log.info("\u4efb\u52a1B\u5f00\u59cb------- {}", LocalDateTime.now());\n        Thread.sleep(2000);\n        log.info("\u4efb\u52a1B\u5b8c\u6210------- {}", LocalDateTime.now());\n    }\n    \n}<\/code><\/pre>\n
\u63a7\u5236\u53f0\u8f93\u51fa\uff1a<\/p>\n
2022-10-25 15:04:05.833  INFO 15604 --- [         task-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T15:04:05.833\n2022-10-25 15:04:05.833  INFO 15604 --- [         task-2] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5f00\u59cb------- 2022-10-25T15:04:05.833\n2022-10-25 15:04:07.833  INFO 15604 --- [         task-4] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5f00\u59cb------- 2022-10-25T15:04:07.833\n2022-10-25 15:04:07.833  INFO 15604 --- [         task-3] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T15:04:07.833\n2022-10-25 15:04:07.848  INFO 15604 --- [         task-2] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5b8c\u6210------- 2022-10-25T15:04:07.848\n2022-10-25 15:04:07.848  INFO 15604 --- [         task-1] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T15:04:07.848\n2022-10-25 15:04:09.833  INFO 15604 --- [         task-5] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T15:04:09.833\n2022-10-25 15:04:09.843  INFO 15604 --- [         task-4] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5b8c\u6210------- 2022-10-25T15:04:09.843\n2022-10-25 15:04:09.843  INFO 15604 --- [         task-3] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T15:04:09.843\n2022-10-25 15:04:09.844  INFO 15604 --- [         task-6] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5f00\u59cb------- 2022-10-25T15:04:09.843\n2022-10-25 15:04:11.830  INFO 15604 --- [         task-7] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5f00\u59cb------- 2022-10-25T15:04:11.830\n2022-10-25 15:04:11.845  INFO 15604 --- [         task-6] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1B\u5b8c\u6210------- 2022-10-25T15:04:11.845\n2022-10-25 15:04:11.845  INFO 15604 --- [         task-5] cn.god23bin.demo.task.TaskDemo           : \u4efb\u52a1A\u5b8c\u6210------- 2022-10-25T15:04:11.845<\/code><\/pre>\n
\u603b\u7ed3<\/h2>\n
\u9996\u5148\u8bb2\u4e86\u4e0b\u5b9a\u65f6\u4efb\u52a1\u662f\u4ec0\u4e48\uff1f\u63a5\u7740\u8bb2\u4e86\u6709\u54ea\u4e9b\u5b9e\u73b0\u65b9\u5f0f\uff1f\u5bf9\u8fd9\u4e9b\u65b9\u5f0f\u8fdb\u884c\u4ecb\u7ecd\u3002<\/p>\n
\u4e3b\u8981\u7684\u5b9a\u65f6\u4efb\u52a1\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7684\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n
    \n
  1. \u7eaf\u624b\u5199\u5355\u7ebf\u7a0b\u6b7b\u5faa\u73af\uff0c\u914d\u5408\u7ebf\u7a0b\u7684\u7b49\u5f85\u673a\u5236\u7684\u65b9\u5f0f\uff08\u4e0d\u63a8\u8350\uff0c\u9ebb\u70e6\uff0c\u95ee\u9898\u591a\u591a\uff09<\/li>\n
  2. \u4f7f\u7528 JDK \u63d0\u4f9b\u7684 Timer \u914d\u5408 TimerTask \u7684\u65b9\u5f0f\uff08\u4e0d\u63a8\u8350\uff0c\u5355\u7ebf\u7a0b\uff09<\/li>\n
  3. \u4f7f\u7528 JDK \u63d0\u4f9b\u7684\u591a\u7ebf\u7a0b\u7684 ScheduledExecutorService \u7684\u65b9\u5f0f\uff08\u53ef\u4ee3\u66ff Timer\uff0c\u591a\u7ebf\u7a0b\u7684\uff09<\/li>\n
  4. \u4f7f\u7528 Spring \u63d0\u4f9b\u7684\u5b9a\u65f6\u4efb\u52a1\u7684\u65b9\u5f0f\uff08\u63a8\u8350\uff0c\u66f4\u52a0\u65b9\u4fbf\uff0c\u53ef\u5f02\u6b65\uff09<\/li>\n<\/ol>\n
    \u5f53\u7136\uff0c\u9664\u4e86\u8fd9\u4e9b\u65b9\u5f0f\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5b9a\u65f6\u4efb\u52a1\u6846\u67b6\uff0c\u6bd4\u5982 Quartz\u3001XXL-JOB\u3001Elastic-Job \u7b49\u7b49\u3002<\/p>\n
    \u6700\u540e\u7684\u6700\u540e<\/h2>\n
    \u7531\u672c\u4eba\u6c34\u5e73\u6240\u9650\uff0c\u96be\u514d\u6709\u9519\u8bef\u4ee5\u53ca\u4e0d\u8db3\u4e4b\u5904\uff0c \u5c4f\u5e55\u524d\u7684\u9753\u4ed4\u9753\u5973\u4eec<\/code> \u5982\u6709\u53d1\u73b0\uff0c\u6073\u8bf7\u6307\u51fa\uff01<\/strong><\/p>\n
    \u6700\u540e\uff0c\u8c22\u8c22\u4f60\u770b\u5230\u8fd9\u91cc\uff0c\u8c22\u8c22\u4f60\u8ba4\u771f\u5bf9\u5f85\u6211\u7684\u52aa\u529b\uff0c\u5e0c\u671b\u8fd9\u7bc7\u535a\u5ba2\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01<\/strong><\/p>\n
    \u4f60\u8f7b\u8f7b\u5730\u70b9\u4e86\u4e2a\u8d5e\uff0c\u90a3\u5c06\u5728\u6211\u7684\u5fc3\u91cc\u4e16\u754c\u589e\u6dfb\u4e00\u9897\u660e\u4eae\u800c\u8000\u773c\u7684\u661f\uff01<\/strong><\/p>\n
    https:\/\/segmentfault.com\/a\/1190000042702969<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u524d\u8a00 \u5b66\u8fc7\u5b9a\u65f6\u4efb\u52a1\uff0c\u4f46\u662f\u6211\u5fd8\u4e86\uff0c\u5fd8\u5f97\u4e00\u5e72\u4e8c\u51c0\uff0c\u5bb3\u6015\uff0c\u4e00\u76f4\u542c\u522b\u4eba\u8bf4\uff1a \u4f60\u5199\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u5c31\u597d\u4e86\u3002 \u5199\u4e2a\u5b9a\u65f6\u4efb\u52a1\u8ba9\u4ed6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10006761","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006761"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006761\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}