一文带你掌握springBoot如何做到优雅停机的

server:
  shutdown: graceful  # 启用优雅停机模式
spring:
  lifecycle:
    timeout-per-shutdown-phase: 30s  # 等待请求完成的超时时间（默认30秒）

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

management:
  endpoint:
    shutdown:
      enabled: true
  endpoints:
    web:
      exposure:
        include: shutdown

curl -X POST http://localhost:8080/actuator/shutdown

@Component
public class GracefulShutdownListener implements ApplicationListener<ContextClosedEvent> {
    @Override
    public void onApplicationEvent(ContextClosedEvent event) {
        //dubbo关闭
        DubboBootstrap.getInstance().stop();
        // 执行自定义清理逻辑（如关闭线程池、释放资源）
        ExecutorService executor = event.getApplicationContext().getBean(ExecutorService.class);
        executor.shutdown();
        try {
            if (!executor.awaitTermination(30, TimeUnit.SECONDS)) {
                executor.shutdownNow();
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
    }
}

@Service
public class DatabaseService {
    @PreDestroy
    public void cleanup() {
        // 关闭数据库连接
        DataSource dataSource = ...;
        dataSource.close();
    }
}

spec:
  template:
    spec:
      containers:
        - name: app
          lifecycle:
            preStop:
              exec:
                command: ["sh", "-c", "sleep 30"]  # 等待30秒后发送SIGTERM
          terminationGracePeriodSeconds: 60  # 总宽限期（包括preStop）

readinessProbe:
  httpGet:
    path: /actuator/health/readiness
    port: 8080

curl http://localhost:8080/long-task

curl -X POST http://localhost:8080/actuator/shutdown