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Springboot項目平滑關閉及自動化關閉腳本，供大家參考，具體內容如下
核心代碼
操作步驟
核心代碼
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<ContextClosedEvent> {
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 {
// 指定執行的方法
shutdown();
//手動清理內存
System.gc();
LOGGER.warn("清理內存完畢，正在退出服務......");
if (this.connector == null){
return;
}
this.connector.pause();
LOGGER.warn("關閉全部連接......");
Executor executor = this.connector.getProtocolHandler().getExecutor();
if (executor instanceof ThreadPoolExecutor) {
try {
ThreadPoolExecutor threadPoolExecutor = (ThreadPoolExecutor) executor;
threadPoolExecutor.shutdown();
LOGGER.warn("當前服務線程池被關閉");
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;
}
/**
* 執行服務關閉前的一些定制化操作
* 通常需要確認以下步驟
* 1.關閉kafka等數據連接
* 2.flush內存中全部的未處理數據
* 3.清理服務中全部待處理的數據
*/
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 定制化關閉操作流程
// 關閉 kafka 消費
// flush全部讀寫流
// 清空隊列
// 關閉全部文件流讀寫
}
}
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 {
// 設置服務名
commonInfo.setSERVICE_NAME("Service-Name");
// 自動設置服務啟動后的進程號
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 {
//當前服務名
private String SERVICE_NAME="SERVICE_NAME";
//服務當前狀態
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 {
/**
* 獲取當前服務的PID
* @return PID
*/
public static Integer getCurrentPid(){
String name = ManagementFactory.getRuntimeMXBean().getName();
String pid = name.split("@")[0];
return Integer.valueOf(pid);
}
}
application.properties
#服務關閉 management.endpoint.shutdown.enabled=true #監控相關 management.endpoint.prometheus.enabled=true management.endpoints.web.exposure.include=info
操作步驟
項目使用步驟：
1.拷貝上面的 Shutdown.java 代碼到自己的項目中
2.在 Shutdown.java 文件中的shutdown 方法中寫定制化的關閉操作流程
腳本使用步驟：
1.從git獲取最新的項目關閉腳本 地址
2.壓縮server_close 為server_close.zip
3.上傳 server_close.zip 到你服務所在服務器上的 /data/shell 路徑下
4.配置環境變量 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，請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 運行即可使用服務關閉腳本
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。
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