{"id":4171,"date":"2023-03-01T16:55:15","date_gmt":"2023-03-01T08:55:15","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=4171"},"modified":"2023-03-01T16:55:15","modified_gmt":"2023-03-01T08:55:15","slug":"%e4%bc%98%e9%9b%85%e5%81%9c%e6%9c%ba","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=4171","title":{"rendered":"\u4f18\u96c5\u505c\u673a"},"content":{"rendered":"\n

\u539f\u6587\uff1aSpringBoot \u4f18\u96c5\u505c\u6b62\u670d\u52a1\u7684\u51e0\u79cd\u65b9\u6cd5_java_\u7a0b\u5e8f\u5458\u963f\u91d1-DevPress\u5b98\u65b9\u793e\u533a (csdn.net)<\/a><\/p>\n\n\n\n

SpringBoot \u4f18\u96c5\u505c\u6b62\u670d\u52a1\u7684\u51e0\u79cd\u65b9\u6cd5<\/h1>\n\n\n\n

\u7f16\u5199\u4e00\u4e2ash\u811a\u672c\uff0c\u901a\u8fc7grep\u67e5\u627e\u5230\u6211\u4eec\u9879\u76ee\u7684pid\uff0c\u7136\u540e\u5148\u4f7f\u7528kill-15pid\uff0c\u7136\u540esleep\u4e00\u4e0b\uff0c\u7136\u540e\u5728\u8d85\u627epid,\u5982\u679c\u6ca1\u627e\u5230\uff0c\u8bf4\u660e\u5df2\u7ecf\u5173\u95ed\u4e86\uff0c\u5982\u679c\u627e\u5230\u4e86\uff0c\u8bf4\u660e\u5173\u95ed\u5931\u8d25\u4e86\uff0c\u90a3\u4e48\u5c31\u4f7f\u7528kill-9pid\u5f3a\u5236\u5173\u95ed\u8fdb\u7a0b\u4e86\u3002SpringBoot\u63d0\u4f9b\u7684actuator\u7684\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u6267\u884cshutdown,health,info\u7b49\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cactuator\u7684shutdown\u662fdisable\u7684\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00\u3002<\/p>\n\n\n\n

\u4e00\u3001\u51c6\u5907\u5de5\u4f5c<\/strong><\/p>\n\n\n\n

1.1 \u51c6\u5907\u4e00\u4e2a\u9879\u76ee<\/strong><\/p>\n\n\n\n

       \u968f\u4fbf\u521b\u5efa\u4e00\u4e2aSpring Boot\u9879\u76ee\uff0c\u8fd9\u91cc\u4f7f\u7528\u7684\u662f\u622a\u6b62\u52302020\u5e745\u6708 \u6700\u65b0\u7684\u7248\u672c\uff1a2.2.7.RELEASE\u3002<\/p>\n\n\n\n

1.2 <\/strong>\u521b\u5efa\u4e00\u4e2abean<\/strong><\/p>\n\n\n\n

       \u6211\u4eec\u521b\u5efa\u4e00\u4e2aBean \uff0c\u6709\u4e00\u4e2a\u9500\u6bc1\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

@Componentpublic class TerminateBean {\n    @PreDestroy    public void preDestroy() {        System.out.println(\"TerminalBean is destroyed\");    }\n}\n<\/pre>\n\n\n\n
       \u5728\u63a5\u4e0b\u6765\u7684\u6d4b\u8bd5\u4e2d\uff0c\u4e3b\u8981\u662f\u770b\u8fd9\u4e2apreDestroy\u4f1a\u4e0d\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n\n\n\n
1.3 <\/strong>\u6dfb\u52a0actuator\u7684\u529f\u80fd<\/strong><\/p>\n\n\n\n
       SpringBoot \u63d0\u4f9b\u7684actuator\u7684\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u6267\u884cshutdown, health, info\u7b49\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cactuator\u7684shutdown\u662fdisable\u7684\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00\u5b83\u3002<\/p>\n\n\n\n
       \u5229\u7528actuator\u4e5f\u662f\u505c\u6b62\u670d\u52a1\u7684\u65b9\u5f0f\uff0c\u5728\u4e0b\u9762\u4f1a\u4f7f\u7528\u5230\uff0c\u8fd9\u91cc\u5148\u628a\u4f9d\u8d56\u6dfb\u52a0\u8fdb\u6765\u3002<\/p>\n\n\n\n
\u5f15\u5165acturator\u7684maven\u4f9d\u8d56\uff1a<\/strong><\/p>\n\n\n\n
  <dependency>          <groupId>org.springframework.boot<\/groupId>          <artifactId>spring-boot-starter-actuator<\/artifactId>      <\/dependency>\n<\/pre>\n\n\n\n
\u6253\u5f00shutdown\u8282\u70b9\uff1a<\/strong><\/p>\n\n\n\n
       \u4fee\u6539applicatoin.properties\u6587\u4ef6\uff1a<\/p>\n\n\n\n
management.endpoint.shutdown.enabled=truemanagement.endpoints.web.exposure.include=*\n\n<\/pre>\n\n\n\n
       \u8fd9\u91cc\u66b4\u9732\u4e86\u6240\u6709\u7684\uff0c\u4e5f\u53ef\u4ee5\u6307\u5b9a\u66b4\u9732shutdown\uff1a<\/p>\n\n\n\n
management.endpoint.shutdown.enabled=truemanagement.endpoints.web.exposure.include=shutdown\n<\/pre>\n\n\n\n
\u4e8c\u3001SpringBoot\u7684n\u4e2d\u505c\u673a\u64cd\u4f5c<\/strong><\/p>\n\n\n\n
2.1 Run As \u2013 Java Application<\/strong>\u8fd0\u884c \u2013 Console Termiante\u5173\u95ed<\/strong><\/p>\n\n\n\n
       \u6211\u4eec\u4f7f\u7528Run As \u2013 Java Application\u7684\u65b9\u5f0f\u8fdb\u884c\u8fd0\u884c\u6211\u4eec\u7684Application\uff0c\u542f\u52a8\u6210\u529f\u4e4b\u540e\uff0c\u4f7f\u7528Console\u4e2d\u7684Terminate\u5173\u95ed\u3002<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
      \u6b64\u65f6\u63a7\u5236\u53f0\u4e0d\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.2 Run As \u2013 Spring Boot App<\/strong>\u8fd0\u884c \u2013 Console Terminate\u5173\u95ed<\/strong><\/p>\n\n\n\n
\u6211\u4eec\u4f7f\u7528Run As \u2013 Spring Boot App\u7684\u65b9\u5f0f\u8fdb\u884c\u8fd0\u884c\u6211\u4eec\u7684Application\uff0c\u542f\u52a8\u6210\u529f\u4e4b\u540e\uff0c\u4f7f\u7528Console\u4e2d\u7684Terminate\u5173\u95ed\u3002<\/p>\n\n\n\n
       \u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.3 Run As \u2013 Java Application<\/strong>\u8fd0\u884c \u2013 kill -15 pid\u5173\u95ed<\/strong><\/p>\n\n\n\n
       \u6211\u4eec\u4f7f\u7528Run As \u2013 JavaApplication\u7684\u65b9\u5f0f\u8fdb\u884c\u8fd0\u884c\u6211\u4eec\u7684Application\uff0c\u542f\u52a8\u6210\u529f\u4e4b\u540e\uff0ckill -15 pid\u3002<\/p>\n\n\n\n
       \u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n\n\n\n
2020-05-09 19:47:08.640  INFO 682 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'TerminalBean is destroyed\n     <\/pre>\n\n\n\n
\u6ce8\u610f\u63a7\u5236\u53f0\u7684\u6253\u5370\u4fe1\u606f\uff1a\u6709\u4e00\u4e2a\u6211\u4eec\u5728\u524d\u9762\u8bb2\u8fc7\u7684\u975e\u5e38\u719f\u6089\u7684extShutdownHook\uff0c\u4e0d\u7136\u731c\u51faSpring\u5e95\u5c42\u4e5f\u662f\u4f7f\u7528\u4e86<\/p>\n\n\n\n
Runtime.getRuntime().addShutdownHook(Thread hook);<\/pre>\n\n\n\n
       \u6211\u4eec\u770b\u4e0b\u6e90\u7801\uff1a<\/p>\n\n\n\n
org.springframework.context.support.AbstractApplicationContext.registerShutdownHook()\uff1a\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n\n\n\n
@Override  public void registerShutdownHook() {    if (this.shutdownHook == null) {      \/\/ No shutdown hook registered yet.      this.shutdownHook = new Thread() {        @Override        public void run() {          synchronized (startupShutdownMonitor) {            doClose();          }        }      };      Runtime.getRuntime().addShutdownHook(this.shutdownHook);    }  }<\/em>\n<\/pre>\n\n\n\n
2.4 Run As \u2013 Java Application<\/strong>\u8fd0\u884c \u2013 kill -9 pid\u5173\u95ed<\/strong><\/p>\n\n\n\n
       \u6211\u4eec\u4f7f\u7528Run As \u2013 JavaApplication\u7684\u65b9\u5f0f\u8fdb\u884c\u8fd0\u884c\u6211\u4eec\u7684Application\uff0c\u542f\u52a8\u6210\u529f\u4e4b\u540e\uff0ckill -9 pid\u3002<\/p>\n\n\n\n
       \u6b64\u65f6\u63a7\u5236\u53f0\u4e0d\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.5 actuator<\/strong>\uff1apost shutdown<\/strong><\/p>\n\n\n\n
       \u8fd8\u8bb0\u5f97\u6211\u4eec\u5728\u51c6\u5907\u5de5\u4f5c\u7684\u65f6\u5019\uff0c\u6dfb\u52a0\u4e86actuator\uff0c\u8fd9\u4e2a\u4f1a\u66b4\u9732\u51fa\u6765\u4e00\u4e2a\/actuator\/shutdown\u7684\u5730\u5740\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8bf7\u6c42\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
curl -X POST  http:\/\/localhost:8080\/actuator\/shutdown<\/pre>\n\n\n\n
\u6ce8\u610f\uff1a\u662fpost\u65b9\u6cd5\uff0c\u800c\u4e14post\u8fd9\u91cc\u8981\u5927\u5199\u3001\u5927\u5199\u3001\u5927\u5199\uff0c\u91cd\u8981\u7684\u4e8b\u60c5\u8bf43\u904d\uff0c\u5426\u5219\u4f1a\u62a5\u9519\uff1a\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n\n\n\n
{  \"timestamp\": \"2020-05-11T07:37:55.154+0000\",  \"status\": 405,  \"error\": \"Method Not Allowed\",  \"message\": \"Request method 'post' not supported\",  \"path\": \"\/actuator\/shutdown\"}\n\n<\/pre>\n\n\n\n
\u8bf7\u6c42\u6210\u529f\u7684\u8bdd\uff0c\u4f1a\u8fd4\u56de\uff1a<\/p>\n\n\n\n
{\"message\":\"Shutting down,bye...\"}<\/pre>\n\n\n\n
       \u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.6 ApplicationContext.close()<\/strong><\/p>\n\n\n\n
       \u8fd9\u79cd\u65b9\u5f0f\u7684\u601d\u8def\u5c31\u662f\u83b7\u53d6\u5230ApplicationContext\uff0c\u7136\u540e\u8c03\u7528\u5b83\u7684close()\u65b9\u6cd5\u3002\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n\n\n\n
@RestControllerpublic class ShutDownController implements ApplicationContextAware {\n  private ApplicationContext applicationContext;    @Override  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {    this.applicationContext = applicationContext;  }    @RequestMapping(\"\/shutdownByCTX\")    public String shutdownByCTX(){        ConfigurableApplicationContext ctx = (ConfigurableApplicationContext) applicationContext;        ctx.close();        return \"context is shutdown!!!\";    }\n}\n<\/pre>\n\n\n\n
\u8bf4\u660e\uff1a\u7f16\u5199\u4e00\u4e2a\u7c7b\u5b9e\u73b0ApplicationContextAware\uff0c\u4e3b\u8981\u662f\u8981\u83b7\u53d6\u4e0a\u4e0b\u6587ApplicationContext\uff1b\u7136\u540e\u6211\u4eec\u66b4\u9732\u4e00\u4e2a\u8bf7\u6c42\/shutdownByCTX\uff0c\u5728\u6b64\u65b9\u6cd5\u4f7f\u7528applicationContext\u7684close\u65b9\u6cd5\u3002<\/p>\n\n\n\n
       \u6d4b\u8bd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbf\u95ee\u5730\u5740\uff1a<\/p>\n\n\n\n
http:\/\/127.0.0.1:8080\/shutdownByCTX<\/pre>\n\n\n\n
\u6ce8\u610f\uff1a\u5f53\u8bf7\u6c42\/shutdownByCTX\u7684\u8bdd\uff0c\u5e76\u4e0d\u80fd\u770b\u5230\u8fd4\u56de\u503c\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n
curl: (52) Empty reply from server<\/pre>\n\n\n\n
              \u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.7 SpringApplication.exit()<\/strong><\/p>\n\n\n\n
       \u5229\u7528SpringApplication\u63d0\u4f9b\u7684exit\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
  @RequestMapping(\"\/shutdownBySpringApplication\")    public String shutdownBySpringApplication(){    SpringApplication.exit(applicationContext,(ExitCodeGenerator)()->0);        return \"context is shutdown!!!\";    }\n<\/pre>\n\n\n\n
\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2.8 pid | xargs kill<\/strong><\/p>\n\n\n\n
       \u6b64\u65b9\u5f0f\u662f\u5c06pid\u5199\u5165\u5230\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528xargskill\u8fdb\u884c\u5173\u95ed\u670d\u52a1\u3002<\/p>\n\n\n\n
  public static void main(String[] args) {    SpringApplication application = new SpringApplication(SpringBootShutdownDemoApplication.class);        \/\/ \u6307\u5b9a\u4e00\u4e2a\u6587\u4ef6\uff0c\u5199\u5165pid\u53f7        application.addListeners(new ApplicationPidFileWriter(\"\/data\/tmp\/app.pid\"));        application.run(args);  }<\/em>\n\n\u901a\u8fc7\u547d\u4ee4 cat \/data\/tmp\/app.pid| xargs kill\u547d\u4ee4\u76f4\u63a5\u505c\u6b62\u670d\u52a1\u3002\n\n\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884cpreDestroy\u65b9\u6cd5\u3002<\/pre>\n\n\n\n
\u5c0f\u7ed3\u4e0b\uff1a<\/strong><\/h3>\n\n\n\n
\u4e00\u3001\u901a\u8fc7\u5e94\u7528\u66b4\u9732shutdown<\/strong><\/p>\n\n\n\n
\uff081\uff09actutor\u7684\/actutor\/shutdown\u65b9\u6cd5\uff08\u9700\u8981\u914d\u7f6e\uff09\uff1a\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\uff082\uff09\u5229\u7528Application\u7684close()\u65b9\u6cd5\uff08\u9700\u8981\u7f16\u7801\u66b4\u9732\u51fa\u4e00\u4e2a\u8bbf\u95ee\u7684\u65b9\u6cd5\uff09\uff1a\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\uff083\uff09\u5229\u7528SpingApplication\u7684exit()\u65b9\u6cd5\uff08\u9700\u8981\u7f16\u7801\u66b4\u9732\u51fa\u4e00\u4e2a\u8bbf\u95ee\u7684\u65b9\u6cd5\uff09\uff1a\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\u4e8c\u3001kill<\/strong><\/p>\n\n\n\n
\uff081\uff09kill -9 pid\uff1a\u4e0d\u9700\u8981\u7f16\u7801\uff0c\u4e5f\u4e0d\u9700\u8981\u914d\u7f6e\uff0c\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684\u5f3a\u5236\u5173\u95ed\u7ecf\u5e38\u6307\u4ee4\uff1b\u6b64\u65f6\u63a7\u5236\u53f0\u4e0d\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\uff082\uff09kill -15 pid\uff1a\u4e0d\u9700\u8981\u7f16\u7801\uff0c\u4e5f\u4e0d\u9700\u8981\u914d\u7f6e\uff0c\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684\u5f3a\u5236\u5173\u95ed\u7ecf\u5e38\u6307\u4ee4\uff1b\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\uff083\uff09kill | xargs kill\uff1a\u9700\u8981\u7f16\u7801\uff0c\u7136\u540e\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684\u6307\u4ee4cat \/data\/tmp\/app.pid |xargs kill<\/strong>\uff1b\u6b64\u65f6\u63a7\u5236\u53f0\u4f1a\u6267\u884c<\/strong>preDestroy\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\u4e09\u3001\u751f\u4ea7\u73af\u5883\u600e\u4e48\u73a9\u5450\uff1f<\/strong><\/p>\n\n\n\n
       \u5728\u751f\u4ea7\u73af\u5883\uff0c\u6211\u4eec\u662f\u8fd9\u4e48\u73a9\u7684\uff1f<\/p>\n\n\n\n
\u7f16\u5199\u4e00\u4e2ash\u811a\u672c\uff0c\u901a\u8fc7grep\u67e5\u627e\u5230\u6211\u4eec\u9879\u76ee\u7684pid\uff0c\u7136\u540e\u5148\u4f7f\u7528kill -15 pid\uff0c\u7136\u540esleep\u4e00\u4e0b\uff0c\u7136\u540e\u5728\u8d85\u627epid , \u5982\u679c\u6ca1\u627e\u5230\uff0c\u8bf4\u660e\u5df2\u7ecf\u5173\u95ed\u4e86\uff0c\u5982\u679c\u627e\u5230\u4e86\uff0c\u8bf4\u660e\u5173\u95ed\u5931\u8d25\u4e86\uff0c\u90a3\u4e48\u5c31\u4f7f\u7528kill-9 pid\u5f3a\u5236\u5173\u95ed\u8fdb\u7a0b\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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