前期踩的坑 (spring boot 1.x)

1. 添加mavne依赖

? 1 2 3 4 5 <!-- springboot监控 --> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-actuator</artifactid> </dependency>

2. 启用shutdown

在配置文件里添加下面的配置

? 1 2 3 4 #启用shutdown endpoint的http访问 endpoints.shutdown.enabled=true #不需要验证 endpoints.shutdown.sensitive=false

启动的时候可以看到下面的日志，就说明成功了

3. 优雅停机

发送post请求 http://localhost:8080/shutdown
如果响应码是404 可以尝试post http://localhost:8080/actuator/shutdown

spring boot 2.0

如果你使用的spring boot版本是2.x的就会发现，这些post请求都会出现404的结果。

下面是spring boot 2.0 优雅停机的实现方式。

1.修改application启动类

tomcat容器

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 @springbootapplication public class shutdownapplication { public static void main(string[] args) { springapplication.run(shutdownapplication.class, args); } /** * 用于接受 shutdown 事件 */ @bean public gracefulshutdown gracefulshutdown() { return new gracefulshutdown(); } /** * 配置tomcat * * @return */ @bean public servletwebserverfactory servletcontainer() { tomcatservletwebserverfactory tomcat = new tomcatservletwebserverfactory(); tomcat.addconnectorcustomizers(gracefulshutdown()); return tomcat; } /** * 优雅关闭 spring boot。容器必须是 tomcat */ private class gracefulshutdown implements tomcatconnectorcustomizer, applicationlistener<contextclosedevent> { private final logger log = loggerfactory.getlogger(gracefulshutdown.class); private volatile connector connector; private final int waittime = 10; @override public void customize(connector connector) { this.connector = connector; } @override public void onapplicationevent(contextclosedevent contextclosedevent) { this.connector.pause(); executor executor = this.connector.getprotocolhandler().getexecutor(); if (executor instanceof threadpoolexecutor) { try { threadpoolexecutor threadpoolexecutor = (threadpoolexecutor) executor; threadpoolexecutor.shutdown(); if (!threadpoolexecutor.awaittermination(waittime, timeunit.seconds)) { log.warn("tomcat 进程在" + waittime + " 秒内无法结束，尝试强制结束"); } } catch (interruptedexception ex) { thread.currentthread().interrupt(); } } } } }

undertow容器 (没有使用过，不保证可用)

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 @springbootapplication public class application { public static void main(string[] args) { springapplication.run(application.class, args); } /** * 优雅关闭 spring boot */ @component public class gracefulshutdown implements applicationlistener<contextclosedevent> { @autowired private gracefulshutdownwrapper gracefulshutdownwrapper; @autowired private servletwebserverapplicationcontext context; @override public void onapplicationevent(contextclosedevent contextclosedevent){ gracefulshutdownwrapper.getgracefulshutdownhandler().shutdown(); try { undertowservletwebserver webserver = (undertowservletwebserver)context.getwebserver(); field field = webserver.getclass().getdeclaredfield("undertow"); field.setaccessible(true); undertow undertow = (undertow) field.get(webserver); list<undertow.listenerinfo> listenerinfo = undertow.getlistenerinfo(); undertow.listenerinfo listener = listenerinfo.get(0); connectorstatistics connectorstatistics = listener.getconnectorstatistics(); while (connectorstatistics.getactiveconnections() > 0){} }catch (exception e){ // application shutdown } } } @component public class gracefulshutdownwrapper implements handlerwrapper{ private gracefulshutdownhandler gracefulshutdownhandler; @override public httphandler wrap(httphandler handler) { if(gracefulshutdownhandler == null) { this.gracefulshutdownhandler = new gracefulshutdownhandler(handler); } return gracefulshutdownhandler; } public gracefulshutdownhandler getgracefulshutdownhandler() { return gracefulshutdownhandler; } } @component @allargsconstructor public class undertowextraconfiguration { private final gracefulshutdownwrapper gracefulshutdownwrapper; @bean public undertowservletwebserverfactory servletwebserverfactory() { undertowservletwebserverfactory factory = new undertowservletwebserverfactory(); factory.adddeploymentinfocustomizers(deploymentinfo -> deploymentinfo.addouterhandlerchainwrapper(gracefulshutdownwrapper)); factory.addbuildercustomizers(builder -> builder.setserveroption(undertowoptions.enable_statistics, true)); return factory; } } }

2. 使用 kill命令杀死进程

使用下面的命令杀死进程。该命令是向 某个进程发送终止信号。

? 1 kill -15 [pid]

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：https://blog.csdn.net/u013451048/article/details/80194001