Spring Boot Actuator 在单独的线程池中运行

使用Spring Boot Actuator可以方便地监控和管理Spring Boot应用程序的运行状态。默认情况下，Actuator的所有端点都运行在应用程序的主线程中。然而，有时候我们可能希望将Actuator的端点放在一个单独的线程池中运行，以避免对主线程的阻塞。本文将介绍如何在Spring Boot应用程序中使用自定义线程池来运行Actuator的端点，并提供一个简单的案例代码来演示。

properties
# 设置线程池的核心线程数和最大线程数
spring.task.execution.pool.core-size=5
spring.task.execution.pool.max-size=10
# 设置线程池的队列容量
spring.task.execution.pool.queue-capacity=100

java
@Configuration
@EnableAsync
@EnableScheduling
public class AppConfig {
    
    @Bean(name = "actuatorThreadPool")
    public Executor actuatorThreadPool() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.setMaxPoolSize(10);
        executor.setQueueCapacity(100);
        executor.setThreadNamePrefix("ActuatorThreadPool-");
        executor.initialize();
        return executor;
    }
}

java
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
    
    @Qualifier("actuatorThreadPool")
    @Autowired
    private Executor actuatorThreadPool;
    @Override
    public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
        configurer.setTaskExecutor(actuatorThreadPool);
    }
}

java
@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "Hello, World!";
    }
}
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}