Springboot项目平滑关闭及自动化关闭脚本，供大家参考，具体内容如下
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核心代码
操作步骤
核心代码
GracefulShutdown.java
package cnkj.site.utils; import org.apache.catalina.LifecycleException; import org.apache.catalina.connector.Connector; import org.apache.catalina.util.LifecycleBase; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.boot.web.embedded.tomcat.TomcatConnectorCustomizer; import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory; import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory; import org.springframework.context.ApplicationListener; import org.springframework.context.annotation.Bean; import org.springframework.context.event.ContextClosedEvent; import java.util.concurrent.Executor; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; /* * @version 1.0 created by Carol on 2019/4/25 16:22 */ public class GracefulShutdown implements TomcatConnectorCustomizer, ApplicationListener{ private static final Logger LOGGER = LoggerFactory.getLogger(GracefulShutdown.class); private volatile Connector connector; @Override public void customize(Connector connector) { this.connector = connector; } @Override public void onApplicationEvent(ContextClosedEvent event) { try { // 指定执行的方法 shutdown(); //手动清理内存 System.gc(); LOGGER.warn("清理内存完毕，正在退出服务......"); if (this.connector == null){ return; } this.connector.pause(); LOGGER.warn("关闭全部连接......"); Executor executor = this.connector.getProtocolHandler().getExecutor(); if (executor instanceof ThreadPoolExecutor) { try { ThreadPoolExecutor threadPoolExecutor = (ThreadPoolExecutor) executor; threadPoolExecutor.shutdown(); LOGGER.warn("当前服务线程池被关闭"); if (!threadPoolExecutor.awaitTermination(30, TimeUnit.SECONDS)) { LOGGER.warn("Tomcat thread pool did not shut down gracefully within 30 seconds. Proceeding with forceful shutdown"); } } catch (InterruptedException ex) { Thread.currentThread().interrupt(); } } this.connector.stop(); } catch (LifecycleException e) { e.printStackTrace(); } } @Bean public GracefulShutdown gracefulShutdown() { return new GracefulShutdown(); } @Bean public ConfigurableServletWebServerFactory webServerFactory(final GracefulShutdown gracefulShutdown) { TomcatServletWebServerFactory factory = new TomcatServletWebServerFactory(); factory.addConnectorCustomizers(gracefulShutdown); return factory; } /** * 执行服务关闭前的一些定制化操作 * 通常需要确认以下步骤 * 1.关闭kafka等数据连接 * 2.flush内存中全部的未处理数据 * 3.清理服务中全部待处理的数据 */ public void shutdown(){} }
Shutdown.java
import cnkj.site.utils.GracefulShutdown;
import org.springframework.stereotype.Component;
/*
* @version 1.0 created by Carol on 2019/4/25 16:39
*/
@Component
public class Shutdown extends GracefulShutdown {
@Override
public void shutdown() {
// TODO 定制化关闭操作流程
// 关闭 kafka 消费
// flush全部读写流
// 清空队列
// 关闭全部文件流读写
}
}ApplicationStarterRunner.java
package cn.migu.log.component;
import cnkj.site.utils.HttpCommonUtil;
import cnkj.site.CommonInfo;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
/*
* @version 1.0 created by LXW on 2019/3/14 17:05
*/
@Component
public class ApplicationStarterRunner implements CommandLineRunner {
@Override
public void run(String... args) throws Exception {
// 设置服务名
commonInfo.setSERVICE_NAME("Service-Name");
// 自动设置服务启动后的进程号
commonInfo.setSERVICE_PID(HttpCommonUtil.getCurrentPid());
}
}CommonInfo.java
package cnkj.site.utils;
import lombok.Builder;
import lombok.Data;
import org.springframework.boot.actuate.info.Info;
import org.springframework.boot.actuate.info.InfoContributor;
import org.springframework.stereotype.Component;
import java.util.HashMap;
import java.util.Map;
@Data
@Component
public class CommonInfo implements InfoContributor {
//当前服务名
private String SERVICE_NAME="SERVICE_NAME";
//服务当前状态
private int SERVICE_PID;
@Override
public void contribute(Info.Builder builder) {
builder.withDetail("SERVICE_NAME",SERVICE_NAME);
builder.withDetail("SERVICE_PID", SERVICE_PID);
}
public void clearAll(){
this.SERVICE_NAME="";
this.SERVICE_PID=-1;
}
public Map getAll(){
Map map = new HashMap();
map.put("SERVICE_NAME", getSERVICE_NAME());
map.put("SERVICE_PID", getSERVICE_PID());
return map;
}
}HttpCommonUtil.java
package cnkj.site.utils;
import javax.servlet.http.HttpServletRequest;
import java.lang.management.ManagementFactory;
import java.net.InetAddress;
import java.net.UnknownHostException;
/*
* @version 1.0 created by Carol on 2018/10/25 10:04
*/
public class HttpCommonUtil {
/**
* 获取当前服务的PID
* @return PID
*/
public static Integer getCurrentPid(){
String name = ManagementFactory.getRuntimeMXBean().getName();
String pid = name.split("@")[0];
return Integer.valueOf(pid);
}
}application.properties
#服务关闭 management.endpoint.shutdown.enabled=true #监控相关 management.endpoint.prometheus.enabled=true management.endpoints.web.exposure.include=info
操作步骤
项目使用步骤：
1.拷贝上面的 Shutdown.java 代码到自己的项目中
2.在 Shutdown.java 文件中的shutdown 方法中写定制化的关闭操作流程
脚本使用步骤：
1.从git获取最新的项目关闭脚本 地址
2.压缩server_close 为server_close.zip
3.上传 server_close.zip 到你服务所在服务器上的 /data/shell 路径下
4.配置环境变量 vim /etc/profile
5.在profile文件的最下面新增 export PATH=/data/shell/server_close:$PATH
6.保存并退出 :wq
7.如果提示 /bin/bash^M: bad interpreter: No such file or directory，请vim serviceControll.sh，然后 :set fileformat=unix ，然后 :wq 保存并退出即可
8.cd /data/shell/server_close & ./serviceControll.sh 运行即可使用服务关闭脚本
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创新互联。
