{"id":732,"date":"2025-02-25T19:35:53","date_gmt":"2025-02-25T11:35:53","guid":{"rendered":"http:\/\/www.cmd137blog.top\/?p=732"},"modified":"2025-02-25T19:37:02","modified_gmt":"2025-02-25T11:37:02","slug":"spring-task","status":"publish","type":"post","link":"http:\/\/www.cmd137blog.top\/?p=732","title":{"rendered":"Spring Task"},"content":{"rendered":"\n

\u4efb\u52a1\u8c03\u5ea6\u76f8\u5173\u529f\u80fd\u7684\u5de5\u5177\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u65b9\u4fbf\u5730\u8fdb\u884c\u5b9a\u65f6\u4efb\u52a1\u3001\u5f02\u6b65\u4efb\u52a1\u7b49\u7684\u5904\u7406\uff08\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u8bf7\u6c42\uff09\u3002<\/p>\n\n\n\n

cron \u8868\u8fbe\u5f0f\uff1a<\/h1>\n\n\n\n

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1<\/td>\u79d2<\/td>\u662f<\/td>0-59<\/td>, - * \/<\/code><\/td><\/tr>
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4<\/td>\u65e5\u671f<\/td>\u662f<\/td>1-31<\/td>, - *? \/ L W<\/code><\/td><\/tr>
5<\/td>\u6708\u4efd<\/td>\u662f<\/td>1-12 \u6216\u8005 JAN-DEC<\/td>, - * \/<\/code><\/td><\/tr>
6<\/td>\u661f\u671f<\/td>\u662f<\/td>1-7 \u6216\u8005 SUN-SAT<\/td>, - *? \/ L #<\/code><\/td><\/tr>
7<\/td>\u5e74\u4efd<\/td>\u5426<\/td>1970-2099<\/td>, - * \/<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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    \n
  • *<\/code><\/strong>\uff1a\u8868\u793a\u5339\u914d\u8be5\u5b57\u6bb5\u7684\u6240\u6709\u503c\u3002\u4f8b\u5982\u5728 \u201c\u5206\u949f\u201d \u5b57\u6bb5\u4f7f\u7528*<\/code>\uff0c\u8868\u793a\u6bcf\u5206\u949f\u90fd\u4f1a\u89e6\u53d1\u4efb\u52a1\u3002<\/li>\n\n\n\n
  • ?<\/code><\/strong>\uff1a\u53ea\u80fd\u7528\u5728 \u201c\u65e5\u671f\u201d \u548c \u201c\u661f\u671f\u201d \u5b57\u6bb5\u3002\u5f53\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u5176\u4e2d\u4e00\u4e2a\u5df2\u7ecf\u6307\u5b9a\u4e86\u5177\u4f53\u503c\u6216\u901a\u914d\u7b26*<\/code>\u65f6\uff0c\u53e6\u4e00\u4e2a\u5b57\u6bb5\u5c31\u9700\u8981\u4f7f\u7528?<\/code>\u6765\u8868\u660e\u4e0d\u5173\u5fc3\u8be5\u5b57\u6bb5\u7684\u503c\u3002\u6bd4\u5982\u8981\u5728\u6bcf\u6708 10 \u53f7\u89e6\u53d1\u4efb\u52a1\uff0c\u4e0d\u7ba1\u662f\u661f\u671f\u51e0\uff0c\u90a3\u4e48 \u201c\u65e5\u671f\u201d \u5b57\u6bb5\u519910<\/code>\uff0c\u201c\u661f\u671f\u201d \u5b57\u6bb5\u5c31\u5199?<\/code>\u3002<\/li>\n\n\n\n
  • -<\/code><\/strong>\uff1a\u7528\u4e8e\u6307\u5b9a\u4e00\u4e2a\u8303\u56f4\u3002\u4f8b\u5982\u5728 \u201c\u5c0f\u65f6\u201d \u5b57\u6bb5\u519910-12<\/code>\uff0c\u8868\u793a\u5728 10 \u70b9\u300111 \u70b9\u300112 \u70b9\u90fd\u4f1a\u89e6\u53d1\u4efb\u52a1\u3002<\/li>\n\n\n\n
  • ,<\/code><\/strong>\uff1a\u7528\u4e8e\u5206\u9694\u591a\u4e2a\u503c\u3002\u4f8b\u5982\u5728 \u201c\u661f\u671f\u201d \u5b57\u6bb5\u5199MON,WED,FRI<\/code>\uff0c\u8868\u793a\u5728\u5468\u4e00\u3001\u5468\u4e09\u3001\u5468\u4e94\u89e6\u53d1\u4efb\u52a1\u3002<\/li>\n\n\n\n
  • \/<\/code><\/strong>\uff1a\u7528\u4e8e\u6307\u5b9a\u6b65\u957f\u3002\u4f8b\u5982\u5728 \u201c\u79d2\u201d \u5b57\u6bb5\u51990\/10<\/code>\uff0c\u8868\u793a\u4ece 0 \u79d2\u5f00\u59cb\uff0c\u6bcf\u9694 10 \u79d2\u89e6\u53d1\u4e00\u6b21\u4efb\u52a1\uff1b5\/15<\/code>\u5219\u8868\u793a\u4ece 5 \u79d2\u5f00\u59cb\uff0c\u6bcf\u9694 15 \u79d2\u89e6\u53d1\u4e00\u6b21\u4efb\u52a1\u3002<\/li>\n\n\n\n
  • L<\/code><\/strong>\uff1a\u7528\u5728 \u201c\u65e5\u671f\u201d \u5b57\u6bb5\u65f6\uff0c\u8868\u793a\u8be5\u6708\u7684\u6700\u540e\u4e00\u5929\uff1b\u7528\u5728 \u201c\u661f\u671f\u201d \u5b57\u6bb5\u65f6\uff0c\u8868\u793a\u661f\u671f\u516d\u3002\u4e5f\u53ef\u4ee5\u4e0e\u6570\u5b57\u7ed3\u5408\u4f7f\u7528\uff0c\u5982\u5728 \u201c\u661f\u671f\u201d \u5b57\u6bb5\u51995L<\/code>\uff0c\u8868\u793a\u672c\u6708\u7684\u6700\u540e\u4e00\u4e2a\u661f\u671f\u56db\u3002<\/li>\n\n\n\n
  • W<\/code><\/strong>\uff1a\u8868\u793a\u79bb\u6307\u5b9a\u65e5\u671f\u6700\u8fd1\u7684\u5de5\u4f5c\u65e5\u3002\u4f8b\u5982\u5728 \u201c\u65e5\u671f\u201d \u5b57\u6bb5\u519915W<\/code>\uff0c\u5982\u679c 15 \u53f7\u662f\u5468\u516d\uff0c\u90a3\u4e48\u4efb\u52a1\u4f1a\u5728 14 \u53f7\uff08\u5468\u4e94\uff09\u6267\u884c\uff1b\u5982\u679c 15 \u53f7\u662f\u5468\u65e5\uff0c\u90a3\u4e48\u4efb\u52a1\u4f1a\u5728 16 \u53f7\uff08\u5468\u4e00\uff09\u6267\u884c\uff1b\u5982\u679c 15 \u53f7\u662f\u5468\u4e8c\uff0c\u90a3\u5c31\u662f\u5728 15 \u53f7\u6267\u884c\u3002<\/li>\n\n\n\n
  • #<\/code><\/strong>\uff1a\u53ea\u80fd\u7528\u5728 \u201c\u661f\u671f\u201d \u5b57\u6bb5\uff0c\u7528\u4e8e\u6307\u5b9a\u672c\u6708\u7684\u7b2c\u51e0\u4e2a\u661f\u671f\u51e0\u3002\u4f8b\u5982\u5728 \u201c\u661f\u671f\u201d \u5b57\u6bb5\u51992#3<\/code>\uff0c\u8868\u793a\u672c\u6708\u7684\u7b2c\u4e09\u4e2a\u661f\u671f\u4e8c\u3002<\/li>\n<\/ul>\n\n\n\n

    \u4e00\u822c\u76f4\u63a5\u7528\u5de5\u5177\u751f\u6210\u6240\u9700\u8868\u8fbe\u5f0f\u3002<\/p>\n\n\n\n

    \u4e00\u822c\u4f7f\u7528\u6b65\u9aa4\uff1a<\/h1>\n\n\n\n

    1. \u5f15\u5165\u4f9d\u8d56<\/h3>\n\n\n\n

    \u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f Spring Boot \u9879\u76ee\uff0c\u5728pom.xml<\/code>\uff08Maven \u9879\u76ee\uff09\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u4f9d\u8d56\uff1a<\/p>\n\n\n\n

    <dependencies>\n    <!-- Spring Boot Starter Web \u5305\u542b\u4e86 Spring Task \u6240\u9700\u7684\u4f9d\u8d56 -->\n    <dependency>\n        <groupId>org.springframework.boot<\/groupId>\n        <artifactId>spring-boot-starter-web<\/artifactId>\n    <\/dependency>\n<\/dependencies>\n<\/code><\/pre>\n\n\n\n
    2. \u542f\u7528\u4efb\u52a1\u8c03\u5ea6<\/h3>\n\n\n\n
    \u5728 Spring Boot \u7684\u4e3b\u5e94\u7528\u7c7b\u4e0a\u6dfb\u52a0@EnableScheduling<\/code>\u6ce8\u89e3\uff0c\u4ee5\u6b64\u6765\u5f00\u542f Spring \u7684\u4efb\u52a1\u8c03\u5ea6\u529f\u80fd\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    import org.springframework.boot.SpringApplication;\nimport org.springframework.boot.autoconfigure.SpringBootApplication;\nimport org.springframework.scheduling.annotation.EnableScheduling;\n\n@SpringBootApplication\n@EnableScheduling\npublic class YourApplication {\n    public static void main(String[] args) {\n        SpringApplication.run(YourApplication.class, args);\n    }\n}\n<\/code><\/pre>\n\n\n\n
    3. \u521b\u5efa\u4efb\u52a1\u7c7b<\/h3>\n\n\n\n
    \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b9a\u65f6\u4efb\u52a1\u65b9\u6cd5\u7684\u7c7b\uff0c\u5728\u9700\u8981\u5b9a\u65f6\u6267\u884c\u7684\u65b9\u6cd5\u4e0a\u4f7f\u7528@Scheduled<\/code>\u6ce8\u89e3\u6765\u6307\u5b9a\u4efb\u52a1\u7684\u6267\u884c\u65f6\u95f4\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u4e0d\u540c\u65f6\u95f4\u89c4\u5219\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
    \u56fa\u5b9a\u901f\u7387\u6267\u884c\u4efb\u52a1<\/h4>\n\n\n\n
    \u4f7f\u7528fixedRate<\/code>\u5c5e\u6027\u6307\u5b9a\u4efb\u52a1\u6267\u884c\u7684\u65f6\u95f4\u95f4\u9694\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    <\/p>\n\n\n\n
    import org.springframework.scheduling.annotation.Scheduled;\nimport org.springframework.stereotype.Component;\n\n@Component\npublic class ScheduledTasks {\n    \/\/ \u6bcf\u96945\u79d2\u6267\u884c\u4e00\u6b21\n    @Scheduled(fixedRate = 5000)\n    public void fixedRateTask() {\n        System.out.println(\"Fixed rate task executed at \" + System.currentTimeMillis());\n    }\n}\n<\/code><\/pre>\n\n\n\n
    \u56fa\u5b9a\u5ef6\u8fdf\u6267\u884c\u4efb\u52a1<\/h4>\n\n\n\n
    \u4f7f\u7528fixedDelay<\/code>\u5c5e\u6027\u6307\u5b9a\u4efb\u52a1\u6267\u884c\u5b8c\u6210\u540e\uff0c\u4e0b\u4e00\u6b21\u5f00\u59cb\u6267\u884c\u7684\u5ef6\u8fdf\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    <\/p>\n\n\n\n
    import org.springframework.scheduling.annotation.Scheduled;\nimport org.springframework.stereotype.Component;\n\n@Component\npublic class ScheduledTasks {\n    \/\/ \u4efb\u52a1\u6267\u884c\u5b8c\u6210\u540e\uff0c\u5ef6\u8fdf3\u79d2\u518d\u6267\u884c\u4e0b\u4e00\u6b21\n    @Scheduled(fixedDelay = 3000)\n    public void fixedDelayTask() {\n        System.out.println(\"Fixed delay task executed at \" + System.currentTimeMillis());\n    }\n}\n<\/code><\/pre>\n\n\n\n
    \u4f7f\u7528 Cron \u8868\u8fbe\u5f0f\u6267\u884c\u4efb\u52a1<\/h4>\n\n\n\n
    \u4f7f\u7528cron<\/code>\u5c5e\u6027\u6307\u5b9a\u4efb\u52a1\u7684\u6267\u884c\u65f6\u95f4\uff0cCron \u8868\u8fbe\u5f0f\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u5b9a\u4e49\u4efb\u52a1\u7684\u6267\u884c\u89c4\u5219\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    import org.springframework.scheduling.annotation.Scheduled;\nimport org.springframework.stereotype.Component;\n\n@Component\npublic class ScheduledTasks {\n    \/\/ \u6bcf\u5929\u4e2d\u534812\u70b9\u6267\u884c\n    @Scheduled(cron = \"0 0 12 * * ?\")\n    public void cronTask() {\n        System.out.println(\"Cron task executed at \" + System.currentTimeMillis());\n    }\n}\n<\/code><\/pre>\n\n\n\n
    4. \u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f<\/h3>\n\n\n\n
    \u542f\u52a8 Spring Boot \u5e94\u7528\u7a0b\u5e8f\uff0cSpring \u4f1a\u81ea\u52a8\u8bc6\u522b\u5e76\u6309\u7167\u6307\u5b9a\u7684\u65f6\u95f4\u89c4\u5219\u6267\u884c\u5e26\u6709@Scheduled<\/code>\u6ce8\u89e3\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n
    \u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n
      \n
    • \u7ebf\u7a0b\u6c60\u914d\u7f6e<\/strong>\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cSpring Task \u4f7f\u7528\u5355\u7ebf\u7a0b\u6267\u884c\u5b9a\u65f6\u4efb\u52a1\u3002\u5982\u679c\u6709\u591a\u4e2a\u5b9a\u65f6\u4efb\u52a1\u9700\u8981\u5e76\u884c\u6267\u884c\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6eThreadPoolTaskScheduler<\/code>\u6765\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n
      import org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\nimport org.springframework.scheduling.annotation.EnableScheduling;\nimport org.springframework.scheduling.annotation.SchedulingConfigurer;\nimport org.springframework.scheduling.config.ScheduledTaskRegistrar;\n\nimport java.util.concurrent.Executor;\nimport java.util.concurrent.Executors;\n\n@Configuration\n@EnableScheduling\npublic class SchedulingConfig implements SchedulingConfigurer {\n    @Override\n    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {\n        taskRegistrar.setScheduler(taskExecutor());\n    }\n\n    @Bean(destroyMethod=\"shutdown\")\n    public Executor taskExecutor() {\n        return Executors.newScheduledThreadPool(5); \/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b5\u4e2a\u7ebf\u7a0b\u7684\u7ebf\u7a0b\u6c60\n    }\n}\n<\/code><\/pre>\n\n\n\n
        \n
      • \u5f02\u5e38\u5904\u7406<\/strong>\uff1a\u5728\u5b9a\u65f6\u4efb\u52a1\u65b9\u6cd5\u4e2d\uff0c\u9700\u8981\u5bf9\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u8fdb\u884c\u9002\u5f53\u7684\u5904\u7406\uff0c\u907f\u514d\u56e0\u5f02\u5e38\u5bfc\u81f4\u4efb\u52a1\u505c\u6b62\u6267\u884c\u3002\u53ef\u4ee5\u4f7f\u7528try-catch<\/code>\u5757\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u3002<\/li>\n<\/ul>\n\n\n\n
        \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u4f60\u5c31\u53ef\u4ee5\u5728 Spring \u9879\u76ee\u4e2d\u65b9\u4fbf\u5730\u4f7f\u7528 Spring Task \u8fdb\u884c\u4efb\u52a1\u8c03\u5ea6\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u4efb\u52a1\u8c03\u5ea6\u76f8\u5173\u529f\u80fd\u7684\u5de5\u5177\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u65b9\u4fbf\u5730\u8fdb\u884c\u5b9a\u65f6\u4efb\u52a1\u3001\u5f02\u6b65\u4efb\u52a1\u7b49\u7684\u5904\u7406\uff08\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u8bf7\u6c42\uff09\u3002 cron \u8868\u8fbe […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[62,64],"class_list":["post-732","post","type-post","status-publish","format-standard","hentry","category-javaweblist","tag-javaweb","tag-spring"],"_links":{"self":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=732"}],"version-history":[{"count":1,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/732\/revisions"}],"predecessor-version":[{"id":733,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/732\/revisions\/733"}],"wp:attachment":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=732"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}