企业网站改版的意义,贵阳做网站需要多少钱,域名比价网,宣传片制作软件一、目的
服务发生线程锁住#xff0c;需要下线服务时#xff0c;保证请求中的接口不受影响#xff0c;执行完后#xff0c;再下线服务
二、步骤
*kill -15时执行改钩子函数 优雅停机
1.当线程锁住
2.运维那边监控到#xff0c;然后进行kill -15 进程ID
3.代码这边监…一、目的
服务发生线程锁住需要下线服务时保证请求中的接口不受影响执行完后再下线服务
二、步骤
*kill -15时执行改钩子函数 优雅停机
1.当线程锁住
2.运维那边监控到然后进行kill -15 进程ID
3.代码这边监听到关闭信号先把容器权重设置为0不允许新的请求进来.
4.然后为了保住容器其他请求中的接口不受影响进行睡眠30s再关闭容器
三、代码实现
package com.dst.XXX.XXX;import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.PropertyKeyConst;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.api.naming.NamingService;
import com.alibaba.nacos.api.naming.pojo.Instance;
import com.dst.steed.common.util.DstSpringUtil;
import com.dst.steed.rabbit.annotation.SteedAmqpScan;
import lombok.extern.slf4j.Slf4j;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.util.StopWatch;import javax.annotation.Resource;
import java.text.DecimalFormat;
import java.util.List;
import java.util.Optional;
import java.util.Properties;import static com.dst.lcb.base.DstSteedLcbBaseService.PACKAGE_NAME;/*** 服务启动** author LWP* since 2024/08/20*/
Slf4j
SpringBootApplication(scanBasePackages {PACKAGE_NAME})
EnableFeignClients(basePackages PACKAGE_NAME .infrastructure.acl)
MapperScan(basePackages {PACKAGE_NAME .infrastructure.biz.**.mapper, PACKAGE_NAME .modules.mapper,generator.mapper})
SteedAmqpScan(basePackage PACKAGE_NAME .infrastructure.mq)
public class DstSteedXXXXService implements CommandLineRunner, ApplicationContextAware {public static final String PACKAGE_NAME com.dst.XXX.XXX;Autowiredprivate ConfigurableApplicationContext applicationContext;Resourceprivate NacosDiscoveryProperties nacosDiscoveryProperties;public static void main(String[] args) {StopWatch stopWatch new StopWatch();stopWatch.start();SpringApplication.run(DstSteedLcbBaseService.class, args);stopWatch.stop();log.info(【服务 DstSpringUtil.getAppName() 环境 DstSpringUtil.getActiveProfile() 】启动成功耗时 new DecimalFormat(#.##).format(stopWatch.getTotalTimeSeconds()) 秒。);}/*** kill -15时执行改钩子函数 优雅停机* 1.线程锁住* 2.运维那边监控到然后进行kill -15 进程ID* 3.代码这边监听到关闭信号先把容器权重设置为0不允许新的请求进来.* 4.然后为了保住容器其他请求中的接口不受影响进行睡眠30s再关闭容器*/Overridepublic void run(String... args) {log.info(启动成功 !);Runtime.getRuntime().addShutdownHook(new Thread(() - {log.info(收到服务关闭信号);stop();try {log.info(睡眠30秒);Thread.sleep(30000);} catch (InterruptedException e) {throw new RuntimeException(e);}applicationContext.close();}));}private void stop() {try {Properties properties new Properties();properties.put(PropertyKeyConst.NAMESPACE, nacosDiscoveryProperties.getNamespace());properties.put(PropertyKeyConst.SERVER_ADDR, nacosDiscoveryProperties.getServerAddr());NamingService namingService NacosFactory.createNamingService(properties);String serviceName nacosDiscoveryProperties.getService();ListInstance instanceList namingService.getAllInstances(serviceName);OptionalInstance currentInstance instanceList.stream().filter(instance - instance.getIp().equals(nacosDiscoveryProperties.getIp())).findFirst();currentInstance.ifPresent(instance - {log.info(找到当前服务实例: {}, instance);instance.setWeight(0);try {namingService.registerInstance(serviceName, instance);log.info(Nacos 服务权重已设置为 0);} catch (NacosException e) {log.error(设置 Nacos 服务权重时发生错误, e);}});} catch (NacosException e) {log.error(获取 Nacos 命名服务时发生错误, e);}}Overridepublic void setApplicationContext(ApplicationContext applicationContext) {if (applicationContext instanceof ConfigurableApplicationContext) {this.applicationContext (ConfigurableApplicationContext) applicationContext;}}}
