简介

SpringBoot 框架中提供了 spring-boot-starter�actuator 自动配置模块来支持对于 SpringBoot 应用的监控

Actuator

监控应用程序的运行情况

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

Actuator 提供的 endpoint

http://localhost:8080/actuator:查看监控信息

配置

management.endpoints.web.exposure.include=*:暴露所有的url(安全和非安全的)
management.endpoint.health.show-details=always:打印health更详细的信息
management.endpoint.shutdown.enabled:true:表示可以手动关闭应用程序

支持对jmx的访问

image.png

自定义监控的实现

//把需要发布出去的指标信息,通过MB来进行发布
public interface MechineMBean {
    //属性、  操作
    int getCpuCore();
    long getFreeMemory();
    void shutdown();
}
public class Mechine implements MechineMBean{
    @Override
    public int getCpuCore() {
        return Runtime.getRuntime().availableProcessors();
    }
    @Override
    public long getFreeMemory() {
        return Runtime.getRuntime().freeMemory();
    }
    @Override
    public void shutdown() {
        System.exit(0);
    }
}
public class JMXMain {
    public static void main(String[] args) throws MalformedObjectNameException, NotCompliantMBeanException, InstanceAlreadyExistsException, MBeanRegistrationException, IOException {
        MBeanServer beanServer= ManagementFactory.getPlatformMBeanServer();
        ObjectName on=new ObjectName("com.example.springbootstarterdemo.jmxdemo.Mechine:type=mechine");
        MechineMBean mechineMBean=new Mechine();
        beanServer.registerMBean(mechineMBean,on);
        System.in.read();
    }
}